22339 + Interview Questions in Biology in Class 11 Page 333 InterviewSolution

16601.	Question : In passive transport across a membrane, when two protein molecules move in opposite direction it is called as
Answer» UNIPORT antiport symport co-port. Answer :B

Discussion

16602.	Question : In Passiflora, a weak stemmed plant, the tendrils aremodification of :
Answer» stipules LEAVES AXILLARY BUDS terminal leaflets SOLUTION :axillary buds

Discussion

16603.	Question : In Panthera leo, the ________ represents the genus.
Answer» SOLUTION :PANTHERA

Discussion

16604.	Question : In oxygen dissociation curve x-axis and y-axis represent
Answer» x-axis - partial pressure of OXYGEN y-axis percentage SATURATION of Hb with oxygen x-axis - partial pressure of oxygen y-axis - partial pressure of oxygen x-axis - partial pressure of `CO_(2)` y-axis - percentage saturation of OXYHAEMOGLOBIN with oxygen x-axis partial pressure of `CO_(2)` y-axis - partial pressure of oxygen Solution :

Discussion

16605.	Question : In our heart, all the four chambers are completely partitioned. It results in non-mixing of oxygenated blood with deoxygenated blood. Explain the double circulation related to it.
Answer» Solution :CIRCULATION of the blood was first DESCRIBED by William Harvey in 1628. There are two types of blood circulation in vertebrates, single circulation and double circulation. The blood circulates TWICE through the heart first on the right side then on the left side to complete one cardiac cycle. The complete double blood circulation is more prominent in MAMMALS because of the complete partition of all the chambers (Auricles and ventricles) in the heart. In systemic circulation, the Oxygenated blood entering the aorta from the left ventricle is carried by a network of arteries, arterioles and capillaries to the tissues. The deoxygenated blood from the tissue. This increases the diffusion distance and REDUCES the efficiemcy of the gas exchange. In contrast high pressure is required to force blood through the long systemic circuits. Hence the arteries close to the heart have increased pressure than the arteries away from the heart. • Completely separated circuits (pulmonary and systemic) allow these two different demands to be met with.

Discussion

16606.	Question : In our heart, al the four chambers are completely partitioned. It resultes in non - mixing of oxygenated blood with deoxygenated blood. Explain the double circulation related to it.
Answer» Solution :1. Circulation of the blood was first descibed by William Harvey ( 1628). There are two types of blood circulation in vertebrates, single circulation and double circulation. 2. The blood circulates twice through the heart first on the right side them on the LEFT side to complete ONE cardiac cycle. The complete double blood circulation is more prominent in mammals because of the complete partition of all the chambers (Auricles and verntricles ) in the heart. 3. In systemic circulation, the oxygenated blood entering the aorta from the left ventricle is carried by a network of ARTERIES, arterioles and capillaries to the tissues. 4. The deoxygenated blood from the tissue in vertebrates, single circulation and double circulation The blood circulates twice through the heart first on the right then on the left side to complete o cardiac cycle. 5. The complete double blood circulation is more prominent in mammals because of the complete partition of all the chambers (Auriles and VENTRICLES in the heart. 6. In systemic circulation, the oxygenated blood entering the aorta from the left ventricle is carried by a network of arteries, arterioles and capillaries to the tissues. 7. The deoxygenated blood from the tissue capillary walls and can acumulate in the tissues. 8. This increases the diffusion distance and reduces the efficiency of the gas exchange. 9. In CONTRAST high pressure is equired to force blood through the long systemic circuits. Hence the arteries close to the heart have increased pressure than the arteries away from the heart. 10. Completely separated circuits (pulmonary and systemic) allow these two different demands to be met with.

Discussion

16607.	Question : In ornithine cycle which of the following waste are removed from the blood?
Answer» `CO_2 ` and UREA AMMONIA and urea ` CO_2` and ammonia Urea and URINE SOLUTION :` CO_2` and ammonia

Discussion

16608.	Question :In order to enter the stele, water and minerals must pass through:
Answer» the apoplast the CASPARIAN strip endodermal cells xylem vessels Answer :C

Discussion

16609.	Question : In Opuntia, the stem is modified into a flattened green structureto perform the function of leaves (i.e., photosynthesis).Cite some other examples of modifications of plant parts for the purpose of photosynthesis.
Answer» SOLUTION :Ruscus , ASPARAGUS , Myrsiphyllum

Discussion

16610.	Question : In Opuntia the stem is modified into a flattened green structure to perform the function of leaves (i.e., photosynthesis). Cite some other examples of modifications of plant parts for the purpose of photosynthesis.
Answer» Solution :Opuntia is a xerophytic plant , in which leaves are modified into spines and reduce the RATE of transpiration and they can.t perform photosynthesis. So the photosynthesis is done by stem in opuntia. Which is a thick, FLESHY and flat structtire. It possesses chlorophyll and stores FOOD. Such structure is called phylloclade. Sometimes stems get modified into INTERNODES leaf like structure and performs photosynthesis e.g. Asparagus. They are in the level of scaly leaves. While true leaves are modified into either scaly leaves or spines. Similarly in some plants, there are assimilatory ROOTS. Eg . Trapa and Tinospora. These roots develop outside the soil and bears chloroplasts and performs function of photosynthesis.

Discussion

16611.	Question : In Opuntia, stem is flat, leaf like and photosynthetic
Answer» Solution :Being succulent XEROPHYTE, LEAVES in OPUNTIA are CONVERTED into spines and stem becomes flat, green and photosynthetic.

Discussion

16612.	Question : In Onion, food is stored in
Answer» UNDERGROUND stem Scale leaves ROOTS Apices of BRANCHES Answer :B

Discussion

16613.	Question : In one of the following plants connective is elongated, one end of connective bears a fertile lobe and other a sterile plate.
Answer» Sunflower Salvia Petunia Ficus Answer :A

Discussion

16614.	Question : In old age, people often suffer from stiffness and inflammation in joints. What is this condition called?
Answer» SOLUTION :Rheumatoidal ARTHRITIS

Discussion

16615.	Question : In old age, people often suffer from stiff and inflamed joints. What is this condition called ? What are the possible reasons for these symptons ?
Answer» Solution :Stiff and Inflammed joints condition is called osteoporosis. It is AGE related disorder. It is characterised by decreased BONE MASS and INCREASED chances of fractures. In adult female decreasing level of estrogen is common cause for osteoporosis.

Discussion

16616.	Question : In nucleosides, both base and sugar are joined by
Answer» HYDROGEN BOND N-glycoside bond -S-S-bond (1) and (3) ANSWER :B

Discussion

16617.	Question : In _______ of solanaceae flowers are zygomorphic.
Answer» PHYSALIS Schizanthus Salpiglossis CAPSICUM ANSWER :A::C

Discussion

16618.	Question : In north eastern states, the jhum culture is a major threat to biodiversity - substantiate
Answer» SOLUTION :In shifting cultivation, plots of natural tree vegetation are burnt away and the cleared patches are farmed for 2-3 seasons, after which their fertility reduces to a point where crop production is no longer PROFITABLE. The farmer then abandonsthis PATCH and cuts down a new patch of forest trees elsewhere for crop production. This system is practiced in north-eastern regions of India. When vast areas are cleared and burnt, it RESULTS in loss of forest cover, pollution and discharge of `CO_(2)` which in turn attributes to loss of habitat and climate change which has and impact on the faunal DIVERSITY of that regions.

Discussion

16619.	Question : In non-cyclic photophosphorylation,there are photolysis of 12 water molecules, how many H^+ are formed?
Answer» `24 H^+` `36 H^+` `12 H^+` `32 H^+` Answer :A

Discussion

16620.	Question : In - nematodes nutrients are carried to all aprts of the body through
Answer» circulatory SYSTEM RENETTE GLANDS BODY will pseudocoelomic fluid Answer :D

Discussion

16621.	Question : In nemathelminthes the coelom is not lined by peritoneum …………………. .
Answer» acoelom PSEUDOCOELOM ENTEROCOELOM HAEMOCOEL SOLUTION :pseudocoelom

Discussion

16622.	Question : In neem leaf
Answer» Bud is found in the axil of leaf LET Leaf lets are attached to the TIP of PETIOLE Bud is found in the axil of petiole (RACHIS) Leaf is pinnately lobed simple Answer :C

Discussion

16623.	Question : In N_2 , how many number of bonds are there between two nitrogen atoms?
Answer» TWO FOUR THREE One Answer :C

Discussion

16624.	Question : In myopia, the image is formed(a) before the retina(b) on the retina(c) beyond the retina(d) on the blind spot
Answer» before the retina on the retina beyond the retina on the BLIND SPOT

Discussion

16625.	Question : In most simple type of canal system of Porifera , which of the following ways exhibit water flows ?
Answer» OSTIA `to` SPONGOCOEL `to` OSCULUM `to` EXTERIOR Sponogocoel `to ` Ostia `to` Osculum `to` Exterior Osculum `to` Spongocoel `to` Ostia `to` Exterior Osculum `to` Ostia `to` Spongocoel `to` Exterior ANSWER :A

Discussion

16626.	Question : In most plants, the terminal bud suppresses the development of lateral buds. What is this phenomenon called. Name the phytohormone that promote this phenomenon.
Answer» Solution :Suppression in the development of lateral buds DUE to TERMINAL BUD is called apical DOMINANCE. Auxins are the phytohormones which can promote this phenomenon.

Discussion

16627.	Question : In most echinoderms ,
Answer» MOUTH is on the LOWER side mouth is on the upper side anus is on the lower side anus is on the ventral side ANSWER :A

Discussion

16628.	Question : In most of the algae, the storage food product is
Answer» STARCH Mannitol Laminarin Glycogen Solution :In most of the ALGAE, the STORAGE FOOD PRODUCT is starch.

Discussion

16629.	Question : In most .........., cells secrete fibres of collagen andelastin:
Answer» EPITHELIAL tissue muscular tissue CONNECTIVE tissue nervous tissue Solution :connective tissue

Discussion

16630.	Question : In mosses meiosis occurs
Answer» during SPORE formation in the zygote in the gametangium in the gametes Answer :A

Discussion

16631.	Question : In moss, the sporophyte
Answer» is PARTIALLY parasitic on the GAMETOPHYTE PRODUCES GAMETES that give rise to the gametophyte arises from a SPORE produced from the gametophyte manufacture food for itself, as well as for the gametophyte

Discussion

16632.	Question : In moss, stomata occur on
Answer» stem Leaves Capsule All the above Answer :C

Discussion

16633.	Question : In moss, stomata are found on
Answer» LEAVES Stem CAPSULE Spore Solution :In MOSS, STOMATA are FOUND on capsule.

Discussion

16634.	Question : In moss, sporophyte is formed on
Answer» Antheridium Archegonium Prothallus Leafy stage Solution :In MOSS, SPOROPHYTE is FORMED on ARCHEGONIA.

Discussion

16635.	Question : In moss, meiosis occurs in
Answer» Antheridia Archegonia Capsule Both A and B Solution :In MOSS, MEIOSIS OCCURS in capsule/spore MOTHER CELL.

Discussion

16636.	Question : In monocots the vascular bundles are_________while in dicots the vascular bundles are__________
Answer» SOLUTION :SCATTERED, ARRANGED in aring

Discussion

16637.	Question : In monocot stem, the xylem vessels are in form of. . .. . . . . . .
Answer» X Y W `+` ANSWER :B

Discussion

16638.	Question : In monocot seeds the endosperm is bulky and stores food. The outer covering of endosperm in these seeds separates the embryo by a proteinous layer, this layer is called
Answer» SCUTELLUM ALEURONE COLEOPTILE Coleorhiza Answer :B

Discussion

16639.	Question : In monocot plants, the guard cells are
Answer» dumb-bell SHAPED circular kidney shaped OVAL

Discussion

16640.	Question : In monocot roots and dicot roots, protoxylem lies towardsinside of metaxylem.
Answer» SOLUTION :It is due to EXARCH condition of XYLEM. Cells of protoxylem usually face passage cells of endodermis for easy ENTRY of water from CORTEX to xylem.

Discussion

16641.	Question : In molluscs, the pearl is secreted by(a) ctenidium(b) pericardium(c) foot(d) mantle
Answer» CTENIDIUM pericardium foot MANTLE

Discussion

16642.	Question : In mollusca, eye is present over a stalk called ……………….. .
Answer» OSPHRADIUM ostracum ommatophore operculum Solution :ommatophore

Discussion

16643.	Question : In MOET (Multiple Ovulation Embryo Technology), the fertilized eggs from o cow collected in this stages.
Answer» 6 to 7 cells 8 to 32 cells 2 to 4 cells 36 to 40 cells Answer :B

Discussion

16644.	Question : In mitochondrial electron transport system, for every two pairs of electrons that pass from NADH molecules through a sequential series of cytochrome enzymes to molecular oxygen generate :
Answer» 3 ATP 4 ATP 6 ATP 2 ATP ANSWER :C

Discussion

16645.	Question : In mitosis, arrangement of separate chromosomes and to from centromere can be related to which stage ?
Answer» PROPHASE METAPHASE TELOPHASE ANAPHASE ANSWER :D

Discussion

16646.	Question : In mitochondria the enzyme cytochrome oxidase is present in
Answer» OUTER MITOCHONDRIAL MEMBRANE INNER mitochondrial membrane stroma grana Solution :Inner mitochondrial membrane.

Discussion

16647.	Question :In mineral cycle reservoir is
Answer» Atmosphere Hydrosphere Lithosphere Bottom of the sea Answer :C

Discussion

16648.	Question : In Mimusops, the leaves are ……………………
Answer» fagacious EVERGREEN deciduous marcescent Solution :evergreen

Discussion

16649.	Question : In micturition
Answer» URETHRA relaxes ureters relax ureters contract urethra CONTRACTS

Discussion

16650.	Question : In metrocities like Chennai, there is a lack of space for garden. Suggest a technique by which plants can be grown without the need of soil and land space.
Answer» Solution :The TECHNIQUE which can be USED is HYDROPONICS in which NUTRIENT solution is used for growing plants.

Discussion

Explore topic-wise InterviewSolutions in .

Question : In passive transport across a membrane, when two protein molecules move in opposite direction it is called as

Question : In Passiflora, a weak stemmed plant, the tendrils aremodification of :

Question : In Panthera leo, the ________ represents the genus.

Question : In oxygen dissociation curve x-axis and y-axis represent

Question : In our heart, all the four chambers are completely partitioned. It results in non-mixing of oxygenated blood with deoxygenated blood. Explain the double circulation related to it.

Question : In our heart, al the four chambers are completely partitioned. It resultes in non - mixing of oxygenated blood with deoxygenated blood. Explain the double circulation related to it.

Question : In ornithine cycle which of the following waste are removed from the blood?

Question :In order to enter the stele, water and minerals must pass through:

Question : In Opuntia, the stem is modified into a flattened green structureto perform the function of leaves (i.e., photosynthesis).Cite some other examples of modifications of plant parts for the purpose of photosynthesis.

Question : In Opuntia the stem is modified into a flattened green structure to perform the function of leaves (i.e., photosynthesis). Cite some other examples of modifications of plant parts for the purpose of photosynthesis.

Question : In Opuntia, stem is flat, leaf like and photosynthetic

Question : In Onion, food is stored in

Question : In one of the following plants connective is elongated, one end of connective bears a fertile lobe and other a sterile plate.

Question : In old age, people often suffer from stiffness and inflammation in joints. What is this condition called?

Question : In old age, people often suffer from stiff and inflamed joints. What is this condition called ? What are the possible reasons for these symptons ?

Question : In nucleosides, both base and sugar are joined by

Question : In _______ of solanaceae flowers are zygomorphic.

Question : In north eastern states, the jhum culture is a major threat to biodiversity - substantiate

Question : In non-cyclic photophosphorylation,there are photolysis of 12 water molecules, how many H^+ are formed?

Question : In - nematodes nutrients are carried to all aprts of the body through

Question : In nemathelminthes the coelom is not lined by peritoneum …………………. .

Question : In neem leaf

Question : In N_2 , how many number of bonds are there between two nitrogen atoms?

Question : In myopia, the image is formed(a) before the retina(b) on the retina(c) beyond the retina(d) on the blind spot

Question : In most simple type of canal system of Porifera , which of the following ways exhibit water flows ?

Question : In most plants, the terminal bud suppresses the development of lateral buds. What is this phenomenon called. Name the phytohormone that promote this phenomenon.

Question : In most echinoderms ,

Question : In most of the algae, the storage food product is

Question : In most .........., cells secrete fibres of collagen andelastin:

Question : In mosses meiosis occurs

Question : In moss, the sporophyte

Question : In moss, stomata occur on

Question : In moss, stomata are found on

Question : In moss, sporophyte is formed on

Question : In moss, meiosis occurs in

Question : In monocots the vascular bundles are_________while in dicots the vascular bundles are__________

Question : In monocot stem, the xylem vessels are in form of. . .. . . . . . .

Question : In monocot seeds the endosperm is bulky and stores food. The outer covering of endosperm in these seeds separates the embryo by a proteinous layer, this layer is called

Question : In monocot plants, the guard cells are

Question : In monocot roots and dicot roots, protoxylem lies towardsinside of metaxylem.

Question : In molluscs, the pearl is secreted by(a) ctenidium(b) pericardium(c) foot(d) mantle

Question : In mollusca, eye is present over a stalk called ……………….. .

Question : In MOET (Multiple Ovulation Embryo Technology), the fertilized eggs from o cow collected in this stages.

Question : In mitochondrial electron transport system, for every two pairs of electrons that pass from NADH molecules through a sequential series of cytochrome enzymes to molecular oxygen generate :

Question : In mitosis, arrangement of separate chromosomes and to from centromere can be related to which stage ?

Question : In mitochondria the enzyme cytochrome oxidase is present in

Question :In mineral cycle reservoir is

Question : In Mimusops, the leaves are ……………………

Question : In micturition

Question : In metrocities like Chennai, there is a lack of space for garden. Suggest a technique by which plants can be grown without the need of soil and land space.

Question : In monocots the vascular bundles are_while in dicots the vascular bundles are__