93 + Interview Questions in Chemical Control And Coordination in Biology

1.	Which of these is false regarding receptors?(a) Intracellular receptors are present within the cell(b) Receptors form complexes with hormones(c) Receptors disintegrate after contact with hormones(d) Receptors are specificI had been asked this question by my school principal while I was bunking the class.I would like to ask this question from Chemical Control and Coordination in portion Chemical Control and Coordination of Biology – Class 11
Answer» Right answer is (C) RECEPTORS disintegrate after contact with hormones The explanation is: Receptors are the STRUCTURES of the CELL to which hormones bind and form hormone-receptor complex. They do not disintegrate. Receptors are specific for each hormone. INTRACELLULAR receptors are present in the cytoplasm.

Discussion

2.	Which of these hormones stimulates secretion of water and bicarbonate ions?(a) MSH(b) CCK(c) Gastrin(d) SecretinI got this question in an interview for internship.This intriguing question comes from Chemical Control and Coordination topic in chapter Chemical Control and Coordination of Biology – Class 11
Answer» Right answer is (d) Secretin For explanation I would say: Secretin is a PEPTIDE hormone secreted by the endocrine CELLS of the gastrointestinal TRACT. It stimulates the exocrine cells of the pancreas. As a result, water and BICARBONATE ions are secreted.

Discussion

3.	Which hormone is produced in the kidney?(a) Angiotensinogen(b) Erythropoietin(c) Thrombopoietin(d) SomatostatinThis question was addressed to me in my homework.This interesting question is from Chemical Control and Coordination topic in chapter Chemical Control and Coordination of Biology – Class 11
Answer» CORRECT choice is (b) Erythropoietin To EXPLAIN: The kidney PRODUCES erythropoietin. It is produced by the juxtaglomerular cells of the kidney. Angiotensinogen and THROMBOPOIETIN are produced by the liver. Somatostatin is secreted by the pancreas.

Discussion

4.	Which hormone is secreted by the heart?(a) MSH(b) CCK(c) ANF(d) PRLThe question was posed to me during an internship interview.My question comes from Chemical Control and Coordination topic in section Chemical Control and Coordination of Biology – Class 11
Answer» Correct answer is (c) ANF To elaborate: ANF or atrial natriuretic factor is secreted by the heart. It is secreted by the walls of the atria. PRL is secreted by the anterior pituitary GLAND, MSH by the pars INTERMEDIA and CCK by the GI tract.

Discussion

5.	Which of these functions is not regulated by intracellular hormone-receptor complexes?(a) Regulation of gene expression(b) Regulation of chromosome function(c) Interaction with the genome(d) Regulation of K+ entry into the cellI got this question in examination.The question is from Chemical Control and Coordination in chapter Chemical Control and Coordination of Biology – Class 11
Answer» The correct option is (d) Regulation of K+ ENTRY into the cell To explain: INTRACELLULAR hormone-receptor complexes transmit signals mainly to the NUCLEUS for the regulation of GENE expression, regulation of chromosome function through indirect interaction with the genome.

Discussion

6.	What type of hormone is glucagon?(a) Iodothyronines(b) Steroids(c) Peptide(d) Amino acid derivativesThe question was posed to me during an online exam.The origin of the question is Chemical Control and Coordination in portion Chemical Control and Coordination of Biology – Class 11
Answer» The correct option is (c) Peptide Explanation: Glucagon is a peptide HORMONE. It is synthesized and secreted by the ALPHA cells of the pancreas. The FUNCTION of glucagon is to break glycogen into glucose. This RAISES the blood sugar LEVEL.

Discussion

7.	The α-cells in the pancreas secrete which hormone?(a) Somatotropin(b) Somatostatin(c) Insulin(d) GlucagonI have been asked this question during an interview for a job.This interesting question is from Chemical Control and Coordination in section Chemical Control and Coordination of Biology – Class 11
Answer» CORRECT answer is (d) Glucagon Easiest explanation: The Islets of Langerhans in the PANCREAS CONTAIN mostly α-cells and β-cells. The α-cells are responsible for the SECRETION of glucagon while the latter is responsible for the secretion of insulin.

Discussion

8.	IP3 is a(n) _____(a) secondary messenger(b) membrane receptor(c) intracellular receptor(d) nuclear receptorThis question was addressed to me in an interview for job.I need to ask this question from Chemical Control and Coordination in division Chemical Control and Coordination of Biology – Class 11
Answer» Right option is (a) secondary messenger Easy explanation: IP3 is an IMPORTANT secondary messenger. When a hormone binds to a receptor, it forms a hormone receptor complex. This hormone receptor complex transmits a secondary SIGNAL INSIDE the cell via secondary MESSENGERS.

Discussion

9.	Which of these functions is reduced by GIP?(a) Spermatogenesis(b) GI motility(c) Oogenesis(d) Melanin productionThe question was asked in an international level competition.I want to ask this question from Chemical Control and Coordination topic in portion Chemical Control and Coordination of Biology – Class 11
Answer» Correct answer is (b) GI motility To elaborate: Motility of the GI TRACT or the gastrointestinal tract is reduced by GIP or gastric inhibitory PEPTIDE. It is a peptide hormone SECRETED by the endocrine CELLS of the gastrointestinal tract.

Discussion

10.	Hormone receptors are ______(a) glycolipids(b) lipids(c) polysaccharides(d) proteinsI had been asked this question in class test.My question comes from Chemical Control and Coordination topic in portion Chemical Control and Coordination of Biology – Class 11
Answer» The correct option is (d) proteins For explanation I would say: Hormone RECEPTORS are proteinaceous in nature. These receptors are located on or inside the CELLS. It is where a hormone BINDS on a cell. The binding of the hormone signals the cells to perform their TASKS.

Discussion

11.	What is the effect of secretion of ANS?(a) Increases urination frequency(b) Constricts blood vessels(c) Dilates blood vessels(d) Decreases urination frequencyThis question was posed to me by my school principal while I was bunking the class.This question is from Chemical Control and Coordination in portion Chemical Control and Coordination of Biology – Class 11
Answer» The correct choice is (c) Dilates BLOOD vessels Explanation: ANS or atrial natriuretic factor is SECRETED by the walls of the atria of the HEART. Its effect is to dilate the blood vessels. As a result, blood is provided more space to flow, and hence the blood PRESSURE DECREASES.

Discussion

12.	Which hormone reduces the secretion of the gastric hormones?(a) GIP(b) CCK(c) PRL(d) FSHThe question was posed to me in my homework.I'd like to ask this question from Chemical Control and Coordination in chapter Chemical Control and Coordination of Biology – Class 11
Answer» The correct choice is (a) GIP Easy explanation: GIP or gastric inhibitory peptide is a peptide HORMONE secreted by the endocrine cells of the gastrointestinal tract or the GI tract. It INHIBITS or REDUCES gastric SECRETION. It HELPS maintain homeostasis.

Discussion

13.	Which of these is a secondary messenger?(a) Ca^2+(b) Mg^2+(c) Na^+(d) K^+I got this question in examination.My question is based upon Chemical Control and Coordination topic in section Chemical Control and Coordination of Biology – Class 11
Answer» Right option is (c) Na^+ The best I can explain: Ca^2+ is an important secondary messenger. It carries signals or messages from MEMBRANE receptors to the DESIGNATED areas INSIDE the cells. It is also important for MUSCLE contractions.

Discussion

14.	Pepsinogen secretion is stimulated by ______(a) GIP(b) CCK(c) secretin(d) gastrinThis question was addressed to me during an online exam.I'd like to ask this question from Chemical Control and Coordination in portion Chemical Control and Coordination of Biology – Class 11
Answer» Right CHOICE is (d) gastrin Easy explanation: Gastrin is a peptide hormone secreted by ENDOCRINE TISSUE located at various parts of the GI tract or gastrointestinal tract. It acts on GASTRIC glands to stimulate the SECRETION of pepsinogen.

Discussion

15.	Which of these hormones is not produced by the GI tract?(a) MSH(b) CCK(c) GIP(d) SecretinThis question was posed to me during a job interview.I would like to ask this question from Chemical Control and Coordination in section Chemical Control and Coordination of Biology – Class 11
Answer» RIGHT choice is (a) MSH The explanation: The GI tract or gastrointestinal tract contains endocrine TISSUE at different PARTS that secrete peptide hormones such as CCK or cholecystokinin, GIP or gastric inhibitory peptide, secretin and gastrin.

Discussion

16.	Which part of kidney produces erythropoietin?(a) PCT(b) DCT(c) Juxtaglomerular apparatus(d) Loop of HenleThis question was addressed to me in an online interview.This is a very interesting question from Chemical Control and Coordination in division Chemical Control and Coordination of Biology – Class 11
Answer» Correct CHOICE is (C) Juxtaglomerular apparatus Best EXPLANATION: Juxtaglomerular cells of the nephrons of kidney are responsible for the production of the hormone erythropoietin. It is a peptide hormone that induces erythropoiesis or FORMATION of erythrocytes.

Discussion

17.	Secretin acts on _____(a) delta cells of pancreas(b) beta cells of pancreas(c) exocrine cells of pancreas(d) alpha cells of pancreasI got this question in exam.This intriguing question originated from Chemical Control and Coordination topic in chapter Chemical Control and Coordination of Biology – Class 11
Answer» The CORRECT choice is (C) exocrine cells of pancreas The best EXPLANATION: Secretin ACTS on the exocrine cells of pancreas. It STIMULATES the secretion of water and bicarbonate ions. Hence, secretin, a peptide hormone, helps to maintain the homeostasis of the body.

Discussion

18.	Corpus luteum is responsible for the secretion of which hormone?(a) Estrogen(b) Progesterone(c) Vasopressin(d) MelatoninThe question was asked by my college professor while I was bunking the class.This interesting question is from Chemical Control and Coordination topic in chapter Chemical Control and Coordination of Biology – Class 11
Answer» Correct choice is (b) Progesterone The EXPLANATION is: Ovaries PRODUCE two groups of STEROID HORMONES known as estrogen and progesterone. After ovulation, the ruptured follicle is converted into a structure known as CORPUS luteum, which is responsible for progesterone secretion.

Discussion

19.	Which of these hormones stimulates the secretion of bile?(a) MSH(b) GIP(c) CCK(d) PRLI had been asked this question during an interview.This intriguing question comes from Chemical Control and Coordination in division Chemical Control and Coordination of Biology – Class 11
Answer» Right choice is (c) CCK Best EXPLANATION: CCK or CHOLECYSTOKININ is a peptide hormone secreted by the endocrine cells of the GASTROINTESTINAL tract or GI tract. It stimulates the gall bladder to SECRETE bile juice for the digestion of FATS.

Discussion

20.	Hypothalamic hormones are ______(a) peptides(b) steroids(c) iodothyronines(d) amino acid derivatesI had been asked this question in an international level competition.This intriguing question originated from Chemical Control and Coordination topic in division Chemical Control and Coordination of Biology – Class 11
Answer» RIGHT choice is (a) peptides Best explanation: Hypothalamic HORMONES are peptides. They are secreted by the hypothalamus. Peptides, STEROIDS, iodothyronines and amino acid derivatives are the DIFFERENT categories of hormones.

Discussion

21.	Which disorder involves the formation of ketone bodies?(a) Graves’ disease(b) Diabetes insipidus(c) Acromegaly(d) Diabetes mellitusI had been asked this question in an interview.My doubt is from Chemical Control and Coordination topic in portion Chemical Control and Coordination of Biology – Class 11
Answer» The correct ANSWER is (d) Diabetes mellitus For explanation I would SAY: Prolonged hyperglycemia leads to a disorder CALLED diabetes mellitus. It is characterized by weight loss, frequent urination, presence of glucose in urine or glycosuria and the formation of ketone BODIES.

Discussion

22.	The receptor for estrogen is intracellular. True or false?(a) True(b) FalseThe question was asked during an internship interview.My question is from Chemical Control and Coordination topic in chapter Chemical Control and Coordination of Biology – Class 11
Answer» The correct answer is (a) True Best EXPLANATION: Estrogen is a steroid hormone secreted by the ovaries. Since it is a steroid hormone, estrogen can easily PASS through the lipid BILAYER of the CELL membrane without a receptor. Thus its receptor lies in the CYTOPLASM, or the receptor is intracellular.

Discussion

23.	Which type of cells of the Islet of Langerhans are responsible for hyperglycemia?(a) β-cells(b) α-cells(c) δ-cells(d) F cellsThe question was posed to me at a job interview.I would like to ask this question from Chemical Control and Coordination in chapter Chemical Control and Coordination of Biology – Class 11
Answer» The CORRECT answer is (a) β-cells Easiest explanation: Islet of Langerhans consists of two major types of cells, namely, α-cells and β-cells. β-cells are responsible for the SECRETION of INSULIN, which is responsible for HYPERGLYCAEMIA or high blood sugar.

Discussion

24.	Which of these is not a steroid hormone?(a) Estrogen(b) Progesterone(c) Vasopressin(d) TriiodothyronineThe question was asked during an interview for a job.Question is from Chemical Control and Coordination topic in division Chemical Control and Coordination of Biology – Class 11
Answer» Right answer is (c) Vasopressin For explanation: Vasopressin is a protein HORMONE. It is a nonapeptide. Triiodothyronine is secreted by thyroid gland while ESTROGEN and progesterone are steroid HORMONES that are secreted by the ovaries.

Discussion

25.	Which of these hormones stimulates glycogenesis?(a) Glucagon(b) Erythropoietin(c) Insulin(d) SecretinI had been asked this question during an online interview.My doubt is from Chemical Control and Coordination in chapter Chemical Control and Coordination of Biology – Class 11
Answer» The correct answer is (c) Insulin Easiest explanation: Insulin stimulates the CONVERSION of GLUCOSE to GLYCOGEN, which is stored in the liver and muscles, via a process known as GLYCOGENESIS. Thus, insulin helps maintain homeostasis by REGULATING the blood sugar level.

Discussion

26.	The stromal tissue of the testis is responsible for the production of testosterone. True or false?(a) True(b) FalseI got this question in my homework.The doubt is from Chemical Control and Coordination in chapter Chemical Control and Coordination of Biology – Class 11
Answer» The correct choice is (a) True The explanation: TESTIS is COMPOSED of seminiferous tubules and stromal or interstitial TISSUE. The stromal tissue which is composed of LEYDIG cells is responsible for the production of androgens, mainly TESTOSTERONE.

Discussion

27.	Leydig cells are responsible for the production of ______(a) testosterone(b) estrogen(c) progesterone(d) erythropoietinThe question was asked during an interview.Asked question is from Chemical Control and Coordination in section Chemical Control and Coordination of Biology – Class 11
Answer» Correct choice is (a) testosterone The EXPLANATION: Testis is COMPOSED of seminiferous tubules and Leydig cells or INTERSTITIAL cells. The Leydig cells are responsible for the production of androgens, ESPECIALLY testosterone which is the male sex hormone.

Discussion

28.	Adrenaline is derived from ______(a) lipopolysaccharides(b) amino acids(c) lipids(d) sugarsI have been asked this question by my school principal while I was bunking the class.The above asked question is from Chemical Control and Coordination topic in division Chemical Control and Coordination of Biology – Class 11
Answer» The correct choice is (b) AMINO acids The BEST explanation: Adrenaline or epinephrine is DERIVED from amino acids. It is secreted by the outer cortex of the pair of adrenal glands. It is the emergency hormone secreted during a fight or FLIGHT response.

Discussion

29.	CCK is a peptide hormone. True or false?(a) True(b) FalseI got this question in a job interview.This is a very interesting question from Chemical Control and Coordination topic in section Chemical Control and Coordination of Biology – Class 11
Answer» CORRECT option is (a) True Best EXPLANATION: CCK or cholecystokinin is produced by the ENDOCRINE tissue present in the gastrointestinal tract. It is a PEPTIDE hormone. It has a stimulating effect on pancreas and gall bladder.

Discussion

30.	Which gland is both endocrine and exocrine?(a) Thyroid gland(b) Adrenal gland(c) Pancreas(d) Parathyroid glandI have been asked this question in class test.Query is from Chemical Control and Coordination in chapter Chemical Control and Coordination of Biology – Class 11
Answer» RIGHT answer is (c) PANCREAS For explanation I would say: Many glands in the endocrine system can perform more than ONE function. Pancreas is a COMPOSITE gland that ACTS as both an endocrine and an exocrine gland. The Islets of Langerhans cells are mainly endocrine.

Discussion

31.	Which of these structures of heart secrete hormones?(a) Bundle of His(b) Ventricle(c) SA node(d) AtriumThis question was addressed to me in an online quiz.My question is based upon Chemical Control and Coordination in division Chemical Control and Coordination of Biology – Class 11
Answer» The CORRECT ANSWER is (d) Atrium Explanation: The atria are the TWO UPPER chambers of the HEART. The walls of the atria secrete a hormone known as atrial natriuretic factor or ANF. Its function is to reduce blood pressure to maintain homeostasis.

Discussion

32.	Hydrochloric acid secretion is stimulated by ______(a) GIP(b) CCK(c) gastrin(d) secretinThe question was asked in examination.My doubt is from Chemical Control and Coordination in portion Chemical Control and Coordination of Biology – Class 11
Answer» The CORRECT answer is (c) gastrin Best explanation: Gastrin is a peptide hormone secreted by endocrine TISSUE LOCATED at various PARTS of the GI tract or gastrointestinal tract. It acts on the gastric GLANDS to stimulate hydrochloric acid secretion.

Discussion

33.	Which of these hormones reduce blood pressure?(a) Atrial natriuretic factor(b) Adrenaline(c) Noradrenaline(d) SomatotropinI have been asked this question in a national level competition.The query is from Chemical Control and Coordination topic in division Chemical Control and Coordination of Biology – Class 11
Answer» The correct choice is (a) Atrial natriuretic factor The explanation is: Atrial natriuretic factor or ANF is SECRETED by the walls of the ATRIA of the HEART. Its effect is to dilate blood vessels and HENCE decrease blood PRESSURE. Adrenaline and noradrenaline increase blood pressure.

Discussion

34.	Which hormone is responsible for regulating the osmotic pressure and body fluid volume?(a) Oxytocin(b) Prolactin(c) Aldosterone(d) GlucocorticoidsThis question was addressed to me in exam.My question comes from Chemical Control and Coordination in division Chemical Control and Coordination of Biology – Class 11
Answer» The correct option is (c) ALDOSTERONE Explanation: The adrenal cortex mainly secretes hormones commonly known as corticoids. Aldosterone is the main mineralocorticoid in the body responsible for REGULATING osmotic pressure and body FLUID LEVELS.

Discussion

35.	Which of these supports pregnancy and stimulates milk secretion?(a) Corpus luteum(b) Ovum(c) Progesterone(d) EstrogenThe question was posed to me in an interview.I'm obligated to ask this question of Chemical Control and Coordination topic in portion Chemical Control and Coordination of Biology – Class 11
Answer» The correct choice is (c) Progesterone To explain: OVARIES release TWO steroid hormones known as estrogen and progesterone which are a part of female reproductive system. Progesterone helps with the formation of ALVEOLI and the process of SECRETION of milk.

Discussion

36.	Where are the adrenal glands located?(a) Above the kidneys(b) Between the lungs(c) Around the trachea(d) Base of the hypothalamusI have been asked this question by my school principal while I was bunking the class.Query is from Chemical Control and Coordination in portion Chemical Control and Coordination of Biology – Class 11
Answer» Correct answer is (a) Above the KIDNEYS To ELABORATE: The adrenal glands are located just above the kidneys. It is PYRAMIDAL in SHAPE. The thyroid gland is located around the TRACHEA, the thymus is located between the lungs and the pituitary gland is located at the base of the hypothalamus.

Discussion

37.	Where is the hypothalamus located?(a) Top of the telencephalon(b) Base of the telencephalon(c) Base of the diencephalon(d) Top of the diencephalonThe question was asked in final exam.This intriguing question originated from Chemical Control and Coordination in portion Chemical Control and Coordination of Biology – Class 11
Answer» The correct answer is (c) BASE of the diencephalon The best explanation: The hypothalamus is located at the base of the diencephalon in the forebrain. It has several important functions INCLUDING the regulation of the LEVELS of several hormones as well as overall HOMEOSTASIS.

Discussion

38.	Melatonin influences our defense capabilities. True or false?(a) True(b) FalseI had been asked this question during an interview.I would like to ask this question from Chemical Control and Coordination topic in chapter Chemical Control and Coordination of Biology – Class 11
Answer» The CORRECT CHOICE is (a) True The explanation is: Melatonin is a hormone secreted by the pineal gland. It is responsible for various functions such as the sleep-wake or DIURNAL cycle and body temperature. It also affects our defense CAPABILITIES.

Discussion

39.	T-lymphocytes provide cell-mediated immunity. True or false?(a) True(b) FalseI got this question in an internship interview.I would like to ask this question from Chemical Control and Coordination topic in division Chemical Control and Coordination of Biology – Class 11
Answer» CORRECT answer is (a) True To elaborate: T-lymphocytes are produced by the thymus, which is an endocrine gland and an important organ of the lymphatic system. The differentiation of T-lymphocytes OCCURS here. They PROVIDE cell-mediated immunity.

Discussion

40.	An abnormality in the functioning of which of these hormones can lead to diabetes insipidus?(a) Insulin(b) Glucagon(c) Vasopressin(d) Growth hormoneThe question was posed to me in exam.I want to ask this question from Chemical Control and Coordination topic in portion Chemical Control and Coordination of Biology – Class 11
Answer» RIGHT option is (c) VASOPRESSIN The best I can explain: An abnormality in the synthesis or secretion of anti-diuretic HORMONE (ADH) or vasopressin leads to diabetes insipidus. This disorder is characterized by dehydration due to EXCESS water LOSS.

Discussion

41.	Which of these is not a function of oxytocin?(a) Stimulation of breastmilk production(b) Stimulation of smooth muscle contraction(c) Stimulation of uterine contraction at childbirth(d) Ejection of milkI had been asked this question by my college director while I was bunking the class.I would like to ask this question from Chemical Control and Coordination topic in portion Chemical Control and Coordination of Biology – Class 11
Answer» CORRECT option is (a) STIMULATION of breastmilk production Explanation: Oxytocin is secreted by the posterior pituitary GLAND. Its functions include stimulating the contraction of smooth muscles as well as contractions of the uterus during CHILDBIRTH and EJECTION of milk. Prolactin is responsible for the production of breastmilk.

Discussion

42.	Which of these hormones is released by the hypothalamus?(a) Somatostatin(b) Prolactin(c) Melatonin(d) GlucocorticoidsI have been asked this question in an interview for internship.The above asked question is from Chemical Control and Coordination in division Chemical Control and Coordination of Biology – Class 11
Answer» Correct option is (a) SOMATOSTATIN Easy explanation: Somatostatin is a hormone released by the hypothalamus. Prolactin is released by the PITUITARY GLAND; melatonin is released by the pineal gland and GLUCOCORTICOIDS are released by the adrenal CORTEX.

Discussion

43.	Graves’ disease is caused by ______(a) hypothyroidism(b) hyperthyroidism(c) deficiency of vasopressin(d) deficiency of adrenalineThis question was addressed to me in an interview.This interesting question is from Chemical Control and Coordination topic in section Chemical Control and Coordination of Biology – Class 11
Answer» The correct option is (b) hyperthyroidism The best explanation: GRAVES’ DISEASE is caused due to hyperthyroidism or EXCESS production of thyroid hormones. It is characterized by ENLARGEMENT of the thyroid gland, protruding eyeballs and weight loss.

Discussion

44.	Pars intermedia is a distinct structure in humans. True or false?(a) True(b) FalseI have been asked this question in an international level competition.The above asked question is from Chemical Control and Coordination topic in division Chemical Control and Coordination of Biology – Class 11
Answer» CORRECT OPTION is (b) False The EXPLANATION: The pars intermedia is a division of the adenohypophysis, ALONG with the pars distalis. The pars distalis is the anterior pituitary gland. However, the pars intermedia is mostly fused or MERGED with the pars distalis.

Discussion

45.	Low secretion of the growth hormone causes which of the following diseases?(a) Acromegaly(b) Gigantism(c) Dwarfism(d) ThyroidI have been asked this question in an interview for internship.Query is from Chemical Control and Coordination in chapter Chemical Control and Coordination of Biology – Class 11
Answer» RIGHT answer is (c) DWARFISM The EXPLANATION is: Low secretion of growth HORMONE RESULTS in stunted growth and which is known as dwarfism while the over secretion of the growth hormone causes the abnormal growth of the body leading to gigantism.

Discussion

46.	Which of these glands are not endocrine?(a) Pituitary(b) Parathyroid(c) Pineal(d) ParotidI got this question in semester exam.I'd like to ask this question from Chemical Control and Coordination topic in section Chemical Control and Coordination of Biology – Class 11
Answer» Right option is (d) Parotid For EXPLANATION I would say: ENDOCRINE glands release chemical messengers called hormones. Hormones act on DISTANT TARGETS. The pituitary, PINEAL and parathyroid glands are endocrine while the parotid gland is exocrine in nature.

Discussion

47.	Which of the following hormone is not secreted by the pars distalis region of the pituitary?(a) Prolactin(b) Growth hormone(c) Follicle-stimulating hormone(d) OxytocinI had been asked this question in class test.I want to ask this question from Chemical Control and Coordination topic in section Chemical Control and Coordination of Biology – Class 11
Answer» The CORRECT CHOICE is (d) Oxytocin Explanation: The pars distalis REGION of pituitary produces growth HORMONE, prolactin, thyroid-stimulating hormone, adrenocorticotrophic hormone, luteinizing hormone, and follicle-stimulating hormone.

Discussion

48.	Which of these hormones would be rapidly secreted in a man if he was being chased by a dog?(a) Somatostatin(b) Somatotropin(c) Epinephrine(d) ProlactinI got this question in an internship interview.My question is based upon Chemical Control and Coordination topic in section Chemical Control and Coordination of Biology – Class 11
Answer» The CORRECT option is (C) Epinephrine Easy explanation: Epinephrine or adrenaline is an emergency HORMONE that is rapidly secreted during stressful or emergency SITUATIONS, such as when a man is being chased by a dog. It is secreted by the adrenal cortex.

Discussion

49.	Oxytocin and vasopressin are synthesised by the pituitary.(a) True(b) FalseThis question was posed to me by my school principal while I was bunking the class.The above asked question is from Chemical Control and Coordination in chapter Chemical Control and Coordination of Biology – Class 11
Answer» The CORRECT option is (B) False For explanation: POSTERIOR pituitary STORES and releases two hormones called OXYTOCIN and vasopressin, which are actually synthesised by the hypothalamus and are transported axonally to the neurohypophysis.

Discussion

50.	Where does vasopressin act on in the kidneys?(a) Afferent arteriole(b) DCT(c) PCT(d) Efferent arterioleI had been asked this question in examination.I need to ask this question from Chemical Control and Coordination in section Chemical Control and Coordination of Biology – Class 11
Answer» The correct option is (b) DCT The best explanation: VASOPRESSIN or anti-diuretic hormone is SECRETED by the posterior PITUITARY gland. It acts on the DCT or DISTAL convoluted tubule of the NEPHRONS of the kidney for the reabsorption of water and electrolytes.

Discussion

Explore topic-wise InterviewSolutions in .

Which hormone is secreted by the heart?(a) MSH(b) CCK(c) ANF(d) PRLThe question was posed to me during an internship interview.My question comes from Chemical Control and Coordination topic in section Chemical Control and Coordination of Biology – Class 11

What type of hormone is glucagon?(a) Iodothyronines(b) Steroids(c) Peptide(d) Amino acid derivativesThe question was posed to me during an online exam.The origin of the question is Chemical Control and Coordination in portion Chemical Control and Coordination of Biology – Class 11

Hormone receptors are ______(a) glycolipids(b) lipids(c) polysaccharides(d) proteinsI had been asked this question in class test.My question comes from Chemical Control and Coordination topic in portion Chemical Control and Coordination of Biology – Class 11

Which hormone reduces the secretion of the gastric hormones?(a) GIP(b) CCK(c) PRL(d) FSHThe question was posed to me in my homework.I'd like to ask this question from Chemical Control and Coordination in chapter Chemical Control and Coordination of Biology – Class 11

Which of these is a secondary messenger?(a) Ca^2+(b) Mg^2+(c) Na^+(d) K^+I got this question in examination.My question is based upon Chemical Control and Coordination topic in section Chemical Control and Coordination of Biology – Class 11

Pepsinogen secretion is stimulated by ______(a) GIP(b) CCK(c) secretin(d) gastrinThis question was addressed to me during an online exam.I'd like to ask this question from Chemical Control and Coordination in portion Chemical Control and Coordination of Biology – Class 11

Which of these hormones is not produced by the GI tract?(a) MSH(b) CCK(c) GIP(d) SecretinThis question was posed to me during a job interview.I would like to ask this question from Chemical Control and Coordination in section Chemical Control and Coordination of Biology – Class 11

Which of these hormones stimulates the secretion of bile?(a) MSH(b) GIP(c) CCK(d) PRLI had been asked this question during an interview.This intriguing question comes from Chemical Control and Coordination in division Chemical Control and Coordination of Biology – Class 11

The receptor for estrogen is intracellular. True or false?(a) True(b) FalseThe question was asked during an internship interview.My question is from Chemical Control and Coordination topic in chapter Chemical Control and Coordination of Biology – Class 11

Which of these is not a steroid hormone?(a) Estrogen(b) Progesterone(c) Vasopressin(d) TriiodothyronineThe question was asked during an interview for a job.Question is from Chemical Control and Coordination topic in division Chemical Control and Coordination of Biology – Class 11

Which of these hormones stimulates glycogenesis?(a) Glucagon(b) Erythropoietin(c) Insulin(d) SecretinI had been asked this question during an online interview.My doubt is from Chemical Control and Coordination in chapter Chemical Control and Coordination of Biology – Class 11

The stromal tissue of the testis is responsible for the production of testosterone. True or false?(a) True(b) FalseI got this question in my homework.The doubt is from Chemical Control and Coordination in chapter Chemical Control and Coordination of Biology – Class 11

Leydig cells are responsible for the production of ______(a) testosterone(b) estrogen(c) progesterone(d) erythropoietinThe question was asked during an interview.Asked question is from Chemical Control and Coordination in section Chemical Control and Coordination of Biology – Class 11

CCK is a peptide hormone. True or false?(a) True(b) FalseI got this question in a job interview.This is a very interesting question from Chemical Control and Coordination topic in section Chemical Control and Coordination of Biology – Class 11

Which gland is both endocrine and exocrine?(a) Thyroid gland(b) Adrenal gland(c) Pancreas(d) Parathyroid glandI have been asked this question in class test.Query is from Chemical Control and Coordination in chapter Chemical Control and Coordination of Biology – Class 11

Which of these structures of heart secrete hormones?(a) Bundle of His(b) Ventricle(c) SA node(d) AtriumThis question was addressed to me in an online quiz.My question is based upon Chemical Control and Coordination in division Chemical Control and Coordination of Biology – Class 11

Hydrochloric acid secretion is stimulated by ______(a) GIP(b) CCK(c) gastrin(d) secretinThe question was asked in examination.My doubt is from Chemical Control and Coordination in portion Chemical Control and Coordination of Biology – Class 11

Melatonin influences our defense capabilities. True or false?(a) True(b) FalseI had been asked this question during an interview.I would like to ask this question from Chemical Control and Coordination topic in chapter Chemical Control and Coordination of Biology – Class 11

T-lymphocytes provide cell-mediated immunity. True or false?(a) True(b) FalseI got this question in an internship interview.I would like to ask this question from Chemical Control and Coordination topic in division Chemical Control and Coordination of Biology – Class 11

Pars intermedia is a distinct structure in humans. True or false?(a) True(b) FalseI have been asked this question in an international level competition.The above asked question is from Chemical Control and Coordination topic in division Chemical Control and Coordination of Biology – Class 11

Which of these glands are not endocrine?(a) Pituitary(b) Parathyroid(c) Pineal(d) ParotidI got this question in semester exam.I'd like to ask this question from Chemical Control and Coordination topic in section Chemical Control and Coordination of Biology – Class 11

Oxytocin and vasopressin are synthesised by the pituitary.(a) True(b) FalseThis question was posed to me by my school principal while I was bunking the class.The above asked question is from Chemical Control and Coordination in chapter Chemical Control and Coordination of Biology – Class 11

Where does vasopressin act on in the kidneys?(a) Afferent arteriole(b) DCT(c) PCT(d) Efferent arterioleI had been asked this question in examination.I need to ask this question from Chemical Control and Coordination in section Chemical Control and Coordination of Biology – Class 11