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751.

which is the inhibitory hormone of GHA. InsulinB. SomatostatinC. ParathormoneD. Testosterone

Answer» Correct Answer - B
752.

A : Prolactin is unique among the pituitary hormones as it is under predominant inhibitory control of hypothalamus. R: The controlling agent is neurotransmitter-· dopamine produced by tuberoinfundibular neuron.A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1).B. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion then mark (2).C. If Assertion is true statement but Reason is false, then mark (3).D. If both Assertion and Reason are false statements, then mark (4)

Answer» Correct Answer - B
753.

The disproportionate growth of bones of body parts due to the over secretion of GH after adolescene is known asA. GigantismB. AcromegalyC. DwarfismD. None of these

Answer» Correct Answer - B
754.

................shows atnti-allergic and anti-inflammatory effect.A. MineralocorticoidsB. GlucocorticoldsC. SexcorticoidsD. Noradrenaline

Answer» Correct Answer - B
755.

GH controls growth throughA. rRNAB. tRNAC. mRNAD. None of the above

Answer» Correct Answer - C
756.

which is the inhibitory hormone of GHA. InsulinB. ParathormeC. SomatostainD. Testosterone

Answer» Correct Answer - C
757.

GnRH , a hypothalamic horomone , needed in reproduction acts onA. anterior pituitary gland and stimulates secretion of LH and oxytocinB. anterior pituitary gland and stimulates secretion of LH and FSHC. posterior pituitary gland and stimulates secretion of oxytocin and FSHD. posterior pituitary gland and simulates secretion of LH and relaxin

Answer» Correct Answer - B
GnRH is a hypothalamic hormone. It stimulates the anterior lobe of pituitary gland to secrete LH and FSH
758.

Hypersecretion of Growth Hormone in adults does not cause further increase in height, becauseA. Growth Hormone becomes inactive in adults.B. Epiphyseal plates close after adolescenceC. Bones loose their sensitivity of Growth Hormone in adultsD. Muscle fibres do not grow in size after birth

Answer» Correct Answer - B
759.

Hypersecretion of Growth Hormone in adults does not cause further increase in height, becauseA. Epiphyseal plates close after adolescence.B. Bones loose their sensitivity to Growth Hormonee in adultsC. Muscle fibres do not grow in size after birth.D. Growth Hormone becomes inactive in adults.

Answer» Correct Answer - A
Hypersecretion of Growth Hormone in adults does not cause further increase in height, because epiphyseal plates close after adolescence.
760.

Hypersecretion of Growth Hormone in adults does not cause further increase in height, becauseA. growth hormone becomes inactive in adultsB. epiphyseal plates close after adolescenceC. bones losse their sensitivity to growth hormone in adultsD. muscle fibres do not grow in size after birth

Answer» Correct Answer - B
Chronic hypersecretion of Growth Hormone (GH) leads to gigantism or acromegally depending on the age of the individual.
If its hypersecretion occurs before the ossification of epiphyseal plates, it cause exaggerated and prolonged growth in long bones. It results in gigantism.
In adults, hypersecretion of GH leads to accromegaly, No incrase in hight occurs because of the ossified epiphyseal plate
761.

Hypersecretion of glucagon may causeA. HypoglycemiaB. glycosuriaC. HypertensionD. diabetes insipidus

Answer» Correct Answer - B
762.

Insuline increasesA. breakdown of fatsB. breakdown of proteinC. breakdown of glycogen in liverD. uptake of glucose by its terget tissues

Answer» Correct Answer - D
763.

Compared to a bull a bullock is docile because ofA. Lower levels of adrenalin / noradrenalin in its bloodB. Higher levels of thyroxinC. Higher levels of cortisoneD. Lower levels of blood testosterone

Answer» Correct Answer - D
764.

The name second messenger is given to Or ltbr In the mechanism of action of a protein hormone, one of the second messengers isA. ATPB. Cyclic AMPC. GTPD. Both ATP and AMP

Answer» Correct Answer - B
765.

In the mechanism of action of a protein hormone, one of the second messengers isA. cyclic AMPB. insulinC. `T_(3)`D. gastrin.

Answer» Correct Answer - A
The molecules of hormones that are amino acid derivatives, peptides or protiens are large and insoluble in lipids and cannot enter the target cell. Therefore, they actg at the cell surface. They bind to specific receptor molecuels located on the cell membrane and generate second messenger, e.g., cyclic AMP, `IP_(3),Ca^(++)`, etc.
766.

In the mechanism of action of a protein hormone, one of the second messengers isA. Cyclic AMPB. InsulinC. `T_(3)`D. Gastrin

Answer» Cyclic AMP is one of the second messengers involved in the action of a protein hormone. The other three options are incorrect as
Insulin regulates glucose homeostasis
`T_(3)` regulates the metabolic rate of the body and thus, helps in maintaining Basal Metabolic Rate (BMR).
Gastrin is a peptide hormone, that stimulates the secretion of hydrochloric acid and, pepsinogen.
767.

If a human female starts developing male characteristics like beared, degeneration of uterus and ovaries, enlargement of clitoris etc. It may be due toA. Over production oestrogen and testosteroneB. Damage to posterior pituitaryC. Over production of adrenal androgensD. Surgical removal of mammary gland

Answer» Correct Answer - C
768.

Which is a 32 amio acid water soluble peptide hormoneA. GastrinB. InsulinC. GlucagonD. Calcitonin

Answer» Correct Answer - D
Calcitonin is a 32 amino acid water soluble peptide hormone.
769.

A sequential expression of a set of human genes occurs when a steroid molecule binds to theA. Messenger RNAB. DNA sequenceC. RibosomeD. Transfer RNA

Answer» Correct Answer - B
770.

The leydig cells as found in the human body are the secretory source ofA. glucagonB. androgensC. progesteroneD. intestinal mucus

Answer» Correct Answer - B
Leydig cells are present in the testes of mammals. These produce androgens (testosterone). These hormones control the development of secondary sexual characters as well as gametogenesis (spermatogenesis) in males.
771.

Which of the following set of hormones can easily pass through the cell membrane of a target cell and bind to specific intracellular receptros ? a. Placental progesterone b. Aldosterone c. Estrogen d. Thyroxine Mark the correct setA. b & cB. A, b & cC. a & cD. a, b, c & d

Answer» Correct Answer - D
772.

The leydig cells as found in the human body are the secretory source ofA. ProgesteroneB. Intestinal mucusC. GlucagonD. Androgens

Answer» Correct Answer - D
773.

Which one of the following pairs of hormones are the examples of those that can easily pass through the cell membrane of the target cell and bind to a receptor inside it (mostly in the nucleus)A. Insulin, glucagonB. Thyroxin, insulinC. Somatostatin, oxytocinD. Cortisol, testosterone

Answer» Correct Answer - D
774.

Which one of the following pairs of hormones are the examples of those that can easily pass through the cell membrane of the target cell and bind to a receptor inside it (mostly in the nucleus)A. Somatostatin, oxytocinB. Cortisol, testosteroneC. Insulin, glucagonD. Thyroxin, Insulin

Answer» Correct Answer - B
775.

Which one of the following pairs of hormones are the examples of those that can easily pass through the cell membrane of the target cell and bind to a receptor inside it (mostly in the nucleus)A. Thyroxin, insulinB. somatostatin, oxytocinC. Cortisol, testosteroneD. Insulin, glucagon

Answer» Correct Answer - C
776.

Depict the correct siter of hormoneA. `alpha`-glucagon, `beta`-insulin, `delta`-somatostatinB. `alpha`-insulin, `beta`-glucagon, `delta`-somatostatinC. `delta`-insulin, `alpha`-somatostatin, `beta`-glucagonD. `alpha`- somatostatin, `beta`-insulin, `delta`-glucagon

Answer» Correct Answer - A
777.

Glycosuria is the condition, where a manA. Eats more sugarB. Excretes sugar in urineC. Suagar is executed in faecesD. Has lower sugar level in blood

Answer» Correct Answer - B
778.

Which one of the following hormones is not involved in sugar metabolism ?A. GlucagonB. CortisoneC. AldosteroneD. Insulin

Answer» Correct Answer - C
779.

A person passes much urine and drinks much water but his blood glucose level is normal. This condition may be the result ofA. A reduction in insulin secretion from pancreasB. A reduction in vasopressin secretion from posterior pituitaryC. A fall in the glucose concentraion in urineD. An increase in secretion of glucagons

Answer» Correct Answer - B
780.

The metabolism of glucose is regulated by a complex orchestration of hormones. All of the following endocrine products increase blood glucose concentration exceptA. EpinephrineB. GlucagonC. CalcitoninD. Cortisol

Answer» Correct Answer - C
781.

A steroid hormone which regulates glucose metabolism isA. cortisolB. corticosteroneC. 11-deoxycorticosteroneD. cortisone

Answer» Correct Answer - A
Cortisol (a steroid hormone) is the principal glucocorticoid hormone of many mammals including humans (corticosterone is more abundant in some small mammals). It regulates the glucose metabolism and promtes gluconegenesis, especially during starvation adn raises blood pressure. Cortisone is an inactive from of cortisol.
782.

The rise of blood suagar above the normal level is known asA. HyperglycemiaB. HypoglycemiaC. GlucosuriaD. Glycolysis

Answer» Correct Answer - A
783.

A disease characterised by raised levels of blood glucose as well as increased fat and protein metabolism isA. DiabetesB. CancerC. UlcerD. Enlargement of pancreas

Answer» Correct Answer - A
784.

Tetany is caused byA. hyperparathyroidismB. hypoparathyroidismC. hyperthyroidismD. Hypothyroidism

Answer» Correct Answer - B
785.

Ovary produces two groups of steroid hormones calledA. Estrogens and androgensB. Progesterone and testosteroneC. LH and FSHD. Estrogen and progesterone

Answer» Correct Answer - D
Ovary produces two ,groups of steroid hormones called estrogen ovarian follicles.
786.

Name two groups of steroid hormones produced by ovaries.

Answer» Progetserones and estrogens.
787.

Transaction of pituitary stalk leads to increase inA. TSHB. ProlactinC. GHD. ACTH

Answer» Correct Answer - B
788.

Name the cells which produce testosterone in testes.

Answer» Correct Answer - Leydig cells.
789.

Name the main types of cells present in the lslets of Langerhans.

Answer» `alpha`-cells and `beta`-cells.
790.

Assertion: Insulin is an anabolic hormone. Reason: A fall in blood amino acids also increaes insulin secretion.

Answer» Correct Answer - C
Insulin is a n anabolic hormone. It increases the synthesis of fat in the adipose tissue from fatty acids as well as glucose. It promotes protein synthesis in tissues from amono acids. It reduces catabolism of proteins and breakdonw and oxidation of fats by decreasing the enzymes which induce glucoenogenesis, insulin increases the utilisation of glucose in tissues and facilitates the storage of glucose as glycogen. A rise in blood glucose level and blood amino acids stimulates both synthesis and the secretion of insulin.
791.

Name the cells which are acted upon by insulin

Answer» Adipocytes, hepatocytes and muscle cells.
792.

Name the disorder which occurs due to prolonged hyperglycemia.

Answer» Correct Answer - Diabetes mellitus.
793.

Anabolic hormones are all exceptA. CortisolB. TestosteroneC. Growth hormoneD. Insulin

Answer» Correct Answer - A
794.

Hyperglycemia is induced by all the following hormones exceptA. glucagonB. thyroxineC. aldosteroneD. glucocorticoid

Answer» Correct Answer - C
795.

If aldorsterone secretion increasesA. Acidosis resultsB. blood volume increasesC. blood sodium levels decreasesD. blood potassium levels increases

Answer» Correct Answer - B
796.

Which of these hormones stimulates so - matomedin secretion ?A. GHB. LHC. FSHD. TSH

Answer» Correct Answer - A
797.

Reception for protein hormones are locatedA. Inside nucleusB. Inside cytoplasmC. On surface of ERD. On cell surface

Answer» Correct Answer - D
Receptors for protein hormones are found on cell suface.
798.

Hypothalamus forms an important link betweenA. Digestive system and nervous systemB. Nervous system ana resplratory systemC. Nervous system and endocrine systemD. lntegumentary system: and reproductive system

Answer» Correct Answer - C
799.

What is/are the function (s) of oxytocin hormone? I. Ejection of milk from mammary glands. II.Contraction of uterus during child birth. III. Maintenance of corpus luteum. IV. Stimulates reproductive system. Choose the correct option.A. Only IVB. I and IIC. III and IVD. II and IV

Answer» Correct Answer - B
800.

Which hormone stimulates the secretion of milk during sucking of milk by baby Or Which hormone is responsible for milk ejection after an birth of the babyA. OxytocinB. RelaxinC. ProlactinD. Progesteron

Answer» Correct Answer - A