22339 + Interview Questions in Biology in Class 11 Page 334 InterviewSolution

16651.	Question : Mesarch xylem is present in
Answer» Protoxylem is SITUATED towards the periphery Protoxylem is situated towards the CENTRE Protoxylem is SURROUNDED by protoxylem METAXYLEM is surrounded by protoxylem Answer :B

Discussion

16652.	Question : In melotic division, prophase is completed in five Successive stagesviz. ……………………………………, …………………………., ………………….., ……………………….. And ……………………….. .
Answer» SOLUTION :LEPTOTENE

Discussion

16653.	Question : While in mitosis, the daughter cells resemble each other and alos the parent cell, in meiosis they differ not only fom parent cell in having half the number of chromosomes. But also differ among themselves qualitatively in genetic consitution due to
Answer» SOLUTION :DISSIMILAR

Discussion

16654.	Question : In meiosis , division is
Answer» I REDUCTIONAL and II EQUATIONAL I equational and II reductional Both reductional Both equational Answer :A

Discussion

16655.	Question : In meiosis over is initiated at
Answer» Diplotene PACHYTENE Leptotene Zygotene Solution :Pachytene

Discussion

16656.	Question :In mangroves, pneumatophores are the modified adventitious roots. Howare these roots helpful to the plant ?
Answer» SOLUTION : PNEUMATOPHORES is MANGROVES HELP in RESPIRATION.

Discussion

16657.	Question :In mango the fruit developed from______ type of ovary
Answer» MONOCARPELLARY, SUPERIOR BICARPELLARY, INFERIOR Monocarpellary, halfsuperior Monocarpellary, inferior ANSWER :A

Discussion

16658.	Question : In Mangifera indica, indica is the _________ name.
Answer» SOLUTION :SPECIFIC

Discussion

16659.	Question : The total number of alveoli in both the lungs is
Answer» 3000 30000 500000000 700000000 Answer :D

Discussion

16660.	Question : In man, normal ECG consists of three waves. P-wave QRS complex wave T-wave What does the above waves mean?
Answer» Solution :Atrial depolarisation/ CONTRACTION/ systole VENTRICULAR depolarisation/ contraction/ systole Ventricular REPOLARISATION/ RELAXATION/ diastole

Discussion

16661.	Question : In mammals, which blood vessel would normally carry largest amount of urea?
Answer» RENAL VEIN Dorsal AORTA HEPATIC Vein Hepatic PortalVein Solution :Hepatic Vein

Discussion

16662.	Question : In mammals (rabbit), the zygomatic arch is formed by
Answer» MAXILLA,PREMAXILLA and squamosal Periotic, JUGAL and PALATINE Maxilla, squamosal and jugal Jugal, maxilla and periodtic Answer :C

Discussion

16663.	Question : In mammals, peroxisomes are seen in ____ cells.
Answer» Brain Lung LIVER Heart Solution :Liver

Discussion

16664.	Question :In mammals the lower jaw is made of........
Answer» Maxilla Dentary MANDIBLE Ethmoid Solution :Mandible

Discussion

16665.	Question : In mammals, milk is digested by the action of
Answer» Rennin Amylase Intestinal bacteria Invertase Answer :A

Discussion

16666.	Question : In mammals embryonic stem cells are I. Totipotent II. Pleuripotent III . Multipotent IV. Oligopotent V. Unipotent .
Answer» I, II, IV II, IV , V II, III I, IV , V

Discussion

16667.	Question : In mammalian eye, the 'fovea' is the center of the visual field, where:
Answer» more rods than cones are found HIGH DENSITY of cones OCCUR but has no rods the optic nerve LEAVES the eye only rods are present SOLUTION :high density of cones occur but has no rods

Discussion

16668.	Question : In malignant tumors, the cells proliferate, grow rapidly and move to other parts of the body to form new tumors. This stage of disease is called
Answer» METAGENESIS metastasis teratogenesis MITOSIS ANSWER :B

Discussion

16669.	Question : In male cockroaches sperms are stored in which part of reproductive system?
Answer» TESTES VAS DEFERENS SEMINAL vescicles Mushroom glands Answer :C

Discussion

16670.	Question : (i) According to theory of chemical evolution the perimitive atmosphere was oxygen (ii) Protista was the ancestral forms of modern bacteria. (iii) Woolly mammoth which lived years ago was available in petrified remains. (iv) Four chambered heart is found in crocodiles.
Answer» i and iv ii and iv i and iii iii and iv Answer :D

Discussion

16671.	Question : (i) A vector is needed for transgenesis always (ii) Transgenesis is used in forensic medicine (iii) Stem cells are differentiated cells (iv) Stem cells banks store vaccines.
Answer» I III, and II IV All the above ANSWER :A

Discussion

16672.	Question : (i) According to Lamarck nature brings in variations (ii) Absence of limbs in snakes is an example for Darwinism (iii) Presence of oversized antlers in Irish deer could not be explained by Darwin (iv) Micro evolution refers to change in allele frequencies in a population.
Answer» III and iv i and iv ii and iii iv Answer :A

Discussion

16673.	Question : Hypoxia is the condition in which less energy becomes available to the tissues. This may be due to
Answer» LESSER OXYGEN in the atmosphere more CO in the air less RBCS in blood all of the above

Discussion

16674.	Question : Hypothyroidism causes in adult
Answer» obesity diabetes cretinism myxoedema

Discussion

16675.	Question : Hypothyroidism causes
Answer» myoxedema cretinism both (i) and (II) EXOPHTHALMIC GOITRE

Discussion

16676.	Question : Hypothetical florigen could be produced prematurely in long day plant by exposing it to
Answer» SHORTENING of period RED LIGHT during night Extending DARK period Far red light Answer :B

Discussion

16677.	Question : Hypothalamus produces . .. which regulate the secretions of the pituitary gland.
Answer» SOLUTION :(NEUROTRANSMITTERS)

Discussion

16678.	Question : Hypothalamus is a super master endocrine gland. Elaborate.
Answer» Solution :The hypothalamus is the basal part of diencephalon, forebrain. It regulates major body functions. It contains several group of neurosecretory cells CALLED Nuclei which produce hormones. Hypothalamus is connected with anterior pituitary gland by hypophyseal portal vein and with posterior pituitary gland by axons of the neuron. Hypothalamus produces two types of hormone. (i) Releasing hormone (R.H.) which stimulate secretion of pituitary hormones (ii)the INHIBITING hormones (which inhibits secretions of pituitary hormnes). E.g. Hypothalamic hormone called Gonadotrophin releasing hormone (GnRH) STIMULATES the pituitary synthesis and release of gonadotrophins. Somatostatin from the hypothalamus inhibits the releas of growth hormone from the pituitary. These hormones ORIGINATING in the hypothalamic neurons, pass through axons and are released from their nerve endings. These hormones reach the pituitary gland through a portal circulatory SYSTEM and regulate the functions of the anterior pituitary. The posterior pituitary is under the direct neural regulation of the hypiothalamus.

Discussion

16679.	Question : Hypothalamus forms upper part of diencephalon of forebrain.
Answer» ANSWER :FALSE

Discussion

16680.	Question : Hypogynous flower/ Superior ovary :
Answer» Solution :In flower THALAMUS becomes cone SHAPED, so ovary is PLACED at the top. Such ovary is superior and all parts of flower are produced from the lower PART of the ovary so this flower is called HYPOGYNOUS flower.

Discussion

16681.	Question : Hypoglossal nerve controls the movements of
Answer» ear heart TONGUE limbs Solution :Hypoglossal NERVE is a MOTOR nerve that CONTROLS the MOVEMENTS of the tongue.

Discussion

16682.	Question : Hypodermis provides mechanical support in
Answer» Dicot ROOT Dicot STEM MONOCOT root All the above Answer :B

Discussion

16683.	Question : Hypochromic microcytic anaemia and leukopenia are caused by the deficiency of respectively.
Answer» PYRIDOXINE and riboflavin pyridoxine and folacin biotin and folacin biotin and cyanocobalamin Answer :B

Discussion

16684.	Question : Hypocalcemia occures due to ?
Answer» HYPERSECRETION of PARATHYROID HORMONE Hyposecretion of parathyroid hormone Hypersecretion of cortisol Hyposecretion of cortisol Solution :Hyposecretion of parathyroid hormone

Discussion

16685.	Question : Hypnospores are thin walled / thich walled resting spores .
Answer» ANSWER :THICH WALLED .

Discussion

16686.	Question : Hypersecretion of Growth Hormone in adults does not cause further increase in height, because:
Answer» Epiphysis plates close after adolescence BONE lose their sensitivity to Growth Hormone in adults Muscle FIBERS do not grow in SIZE after birth Growth Hormone becomes INACTIVE in adults SOLUTION :Epiphysis plates close after adolescence

Discussion

16687.	Question : Hypersecretion of GH in children leads to
Answer» CRETINISM GIGANTISM GRAVES disease Tetany SOLUTION :Gigantism

Discussion

16688.	Question : Hyperglycemia : Diabetes mellitus :: ADH : ……..
Answer» SOLUTION :DIABETES isipidus

Discussion

16689.	Question : Hyperactivity of which hormone may lead to osteoporosis ?
Answer» SOLUTION :PARATHYROID HORMONE

Discussion

16690.	Question : Hyper pigmentation of skin and low metabolic rate are the symptoms of
Answer» Cushing's SYNDROME ADDISON's DISEASE Grave's dises Gull's disese Solution : Addison's disease

Discussion

16691.	Question :Hygroscopic nature of anther wall layer useful for dehiscene of another
Answer» Epidermis ENDOTHECIUM MIDDLE LAYERS Tapetum Answer :2

Discussion

16692.	Question : Hyla has
Answer» TAIL tympanum 2 - CHAMBERED HEART gills ANSWER :B

Discussion

16693.	Question : Hydroponics is a technique of growing:
Answer» SUBMERGED PLANTS free-floating AQUATIC plants terrestrial plants in sand plants in aqueous BALANCED nutrient medium Answer :D

Discussion

16694.	Question : Hydroponics have been shown to be a successful technique for growing of plants. Yet most of the crops are still grown on land . Why?
Answer» Solution :Because, (1) Price is a very important factor. Compared to soil, regulation and maintenance of hydroponics require a large investment. (2) Some times WATER borne disease SPREAD very quickly due to hydroponics experiment. So dehydration is necessary. (3) Farmers do not use new method of hydroponics due to lack of sufficient KNOWLEDGE. (4) plant become less adaptable to atmosphere In hot season and less `O_2` production and quality both decrease by this method.

Discussion

16695.	Question : Hydrophytes are able to float due topresence of
Answer» parenchyma aerenchyma oxygen liberating system of CHLOREN chyma storage of air in roots Answer :B

Discussion

16696.	Question : Hydrophytes are characterised by
Answer» Thick and large LEAF Delicate and mucilagenous stem Short spinous stem All of the above Solution :In hydrophytes stem is LONG. Slender spongy and flexible which OFTEN COVERED with mucilage.

Discussion

16697.	Question : Hydrophonic method is most suitable for plant culture.
Answer» Solution :Plant MINERAL nutrient utilised in ADEQUATE quantity. Water utilised as per need. Protection obtained against soil related diseases, total freedom from WEEDS. Required usefulness of ENERGY and the plant obtaines the balance of mineral ELEMENTS.

Discussion

16698.	Question : Hydrophobia is a feature of which disease?
Answer» POLIOMYELITIS MEASLES Rabies Hepatitis ANSWER :C

Discussion

16699.	Question : Hydrolytic enzymes present in the lysosome are optimally active at
Answer» ACIDIC PH Basis pH NEUTRAL pH No INFLUENCE of pH Answer :A

Discussion

16700.	Question : Hydrolytic enzymes are abundantly found in which cell organelles :
Answer» RIBOSOME LYSOSOME Oxysome Endoplasmic RETICULUM ANSWER :B

Discussion

Explore topic-wise InterviewSolutions in .

Question : Mesarch xylem is present in

Question : In melotic division, prophase is completed in five Successive stagesviz. ……………………………………, …………………………., ………………….., ……………………….. And ……………………….. .

Question : While in mitosis, the daughter cells resemble each other and alos the parent cell, in meiosis they differ not only fom parent cell in having half the number of chromosomes. But also differ among themselves qualitatively in genetic consitution due to

Question : In meiosis , division is

Question : In meiosis over is initiated at

Question :In mangroves, pneumatophores are the modified adventitious roots. Howare these roots helpful to the plant ?

Question :In mango the fruit developed from______ type of ovary

Question : In Mangifera indica, indica is the _________ name.

Question : The total number of alveoli in both the lungs is

Question : In man, normal ECG consists of three waves. P-wave QRS complex wave T-wave What does the above waves mean?

Question : In mammals, which blood vessel would normally carry largest amount of urea?

Question : In mammals (rabbit), the zygomatic arch is formed by

Question : In mammals, peroxisomes are seen in ____ cells.

Question :In mammals the lower jaw is made of........

Question : In mammals, milk is digested by the action of

Question : In mammals embryonic stem cells are I. Totipotent II. Pleuripotent III . Multipotent IV. Oligopotent V. Unipotent .

Question : In mammalian eye, the 'fovea' is the center of the visual field, where:

Question : In malignant tumors, the cells proliferate, grow rapidly and move to other parts of the body to form new tumors. This stage of disease is called

Question : In male cockroaches sperms are stored in which part of reproductive system?

Question : (i) According to theory of chemical evolution the perimitive atmosphere was oxygen (ii) Protista was the ancestral forms of modern bacteria. (iii) Woolly mammoth which lived years ago was available in petrified remains. (iv) Four chambered heart is found in crocodiles.

Question : (i) A vector is needed for transgenesis always (ii) Transgenesis is used in forensic medicine (iii) Stem cells are differentiated cells (iv) Stem cells banks store vaccines.

Question : (i) According to Lamarck nature brings in variations (ii) Absence of limbs in snakes is an example for Darwinism (iii) Presence of oversized antlers in Irish deer could not be explained by Darwin (iv) Micro evolution refers to change in allele frequencies in a population.

Question : Hypoxia is the condition in which less energy becomes available to the tissues. This may be due to

Question : Hypothyroidism causes in adult

Question : Hypothyroidism causes

Question : Hypothetical florigen could be produced prematurely in long day plant by exposing it to

Question : Hypothalamus produces . .. which regulate the secretions of the pituitary gland.

Question : Hypothalamus is a super master endocrine gland. Elaborate.

Question : Hypothalamus forms upper part of diencephalon of forebrain.

Question : Hypogynous flower/ Superior ovary :

Question : Hypoglossal nerve controls the movements of

Question : Hypodermis provides mechanical support in

Question : Hypochromic microcytic anaemia and leukopenia are caused by the deficiency of respectively.

Question : Hypocalcemia occures due to ?

Question : Hypnospores are thin walled / thich walled resting spores .

Question : Hypersecretion of Growth Hormone in adults does not cause further increase in height, because:

Question : Hypersecretion of GH in children leads to

Question : Hyperglycemia : Diabetes mellitus :: ADH : ……..

Question : Hyperactivity of which hormone may lead to osteoporosis ?

Question : Hyper pigmentation of skin and low metabolic rate are the symptoms of

Question :Hygroscopic nature of anther wall layer useful for dehiscene of another

Question : Hyla has

Question : Hydroponics is a technique of growing:

Question : Hydroponics have been shown to be a successful technique for growing of plants. Yet most of the crops are still grown on land . Why?

Question : Hydrophytes are able to float due topresence of

Question : Hydrophytes are characterised by

Question : Hydrophonic method is most suitable for plant culture.

Question : Hydrophobia is a feature of which disease?

Question : Hydrolytic enzymes present in the lysosome are optimally active at

Question : Hydrolytic enzymes are abundantly found in which cell organelles :