22339 + Interview Questions in Biology in Class 11 Page 431 InterviewSolution

21501.	Question : A tendon attaches a …………... to a…………....
Answer» SOLUTION :MUSCLE,BONE

Discussion

21502.	Question : A telocentric chromosome of metaphase consists of
Answer» ONE CENTROMERE, one arm, TWO chromatids One centromere, two ARMS, two chromatids One centromere, one arm, one chromatid One centromere, two arms, one chormatid Answer :A

Discussion

21503.	Question : A technique of micropropagation is :
Answer» SOMATIC embryogenesis Protoplast fusion Embryo rescue Somatic hybridization Answer :A

Discussion

21504.	Question : A taxonomical aid used for identification of plants and animals based on similarities and dissimilarities is .........
Answer» SOLUTION :TAXONOMIC KEY

Discussion

21505.	Question : A taxon is observed, which is a hybrid variety had twice the amount of amino acids, lysine and tryptophan. In this taxon bunch of silky hairs of inflorescence wave in the wind to trap pollen grains. Which of the following characters are related to the taxon ? (A) Caryopsis fruit (B) Bruce roots (C) Monoecious nature (D) Persistent endosperm in mature seed (E) Conjoint and closed vascular bundles of similar size in both stem and leaves
Answer» A, B and C only A, B, C and E only A, B, C and D only A, B, C, D and E Answer :C

Discussion

21506.	Question : A table of taxonomic aids are given. Complete the table.
Answer» Solution :A - PLANT B - MUSEUM C - Dead D - Botanical GARDEN E - Plant F - Live.

Discussion

21507.	Question : A system of classification in which a large number of traits are considered is
Answer» NATURAL system artificial system phylogenetic system synthetic system Answer :A

Discussion

21508.	Question : A : Surface of cerebrum is highly folded. R: To Increase the area for having more neurons.
Answer» A and R both are CORRECT and R is correct EXPLANATION of A. A and R are correct but R is not explanation of A. A is correct and R is FALSE. A and R are false ANSWER :A

Discussion

21509.	Question : A superior quality commercial cork is obtained from
Answer» EUCALYPTUS MANGIFERA QUERCUS (OAK) Tamarindus Answer :C

Discussion

21510.	Question : A sunflower plants produces
Answer» Unisexual FLOWERS only BISEXUAL flowers only Unisexual and NEUTER flowers Unisexual and BISEXUALFLOWERS Answer :D

Discussion

21511.	Question : A substance unrelated to substrate reversibly changes the activity of an enzyme. It is
Answer» COMPETITIVE INHIBITOR Non-competitive inhibitor CATALYTIC inhibitor ALLOSTERIC modulator/inhibitor ANSWER :D

Discussion

21512.	Question : A students set up an experiment on photosynthesis as follow: He takes soda water in a glass tumbler and keeps the tumbler exposed sunlight hoping that he has provided necssary ingredient for photosynthesis to proceed (viz, CO_2,H_2Ochlorophyll and light) what do you think what will happen after,say few hours of exprosure of light?
Answer» Photosynthesis will take PLACE and glucose will produced Photosynthesis will take place and STARCH will be produced which will turn the mixture turbid Photosynthesis will not take place because `CO_2` DISSOLVED in soda water escapes into the atmosphere Photosynthesis will not take place because INTACT chloroplasts are needed for the process Answer :A

Discussion

21513.	Question : A student wishes to study the cell structure under a light microscope having 10 x eyepiece and 45 x objective. He should illuminate the object by which one of the following colours of light so as to get the best possible resolution?
Answer» Yellow Green Blue Red ANSWER :C

Discussion

21514.	Question : A student sets up an expirment on photoysthesis as folows : He takes soda water in a glass tumbler and adds chloroplyll into the contents and keeps the tumbler exposed to sunlight hoping that he has provided necessary ingredients for photosynthesis to proceed ( viz. CO_(2), H_(2)O, chlorophyll, and light). What do you think what happens after, say a few hours of exposure of light ?
Answer» Photosynthesis will take PLACE and GLUCOSE will be produced Photosynthesis willtake place and STARCH will be produced which trun the mixture turbid. Photosynthesis will not take place because `CO_(2)` dissoved in soda water escapes into the atmosphere Photosynthesis will not take place because intact CHLOROPLASTS are needed for the process. Answer :D

Discussion

21515.	Question :A student observed in his school garden that leaves of some plants are folding at the evening when he is going to home and unfolded and expanded when he is coming to the school in the morning. Which part of the leaf is responsible for these changes
Answer» PETIOLE STIPULES Lamina Pulvinous LEAF base Answer :D

Discussion

21516.	Question : A student of taxonomy was puzzled when told by his professor to look for a key to identify a plant. He went to his friend to clarify what 'Key' the professor was referring to ? What would the friend explain to him ?
Answer» Solution :The key for identification of plants is a taxonomic key. It is an important taxonomic aid. A key is compared of two contrasting characters. The characters generally OCCUR in pairs and such a pair is called a coagulate. While studying a key either of contrasting character is rejected or ACCEPTED. Thus a choice is made between the two contrasting character in a key. Each statement in the key is called a lead. If is important to note that a key is usually analytical in nature. Moreover, separate keys need to be used for different taxonomic categories. Keys help in step by step identification of a particular organism. For example, presence or absence of notochord GIVES us a CLUE whether, the organism belongs to sub phylum Vertebrata or Invertebrata. Similarly presence or absence of lungs tell us if the organism belongs to group tetrapoda or pisces.

Discussion

21517.	Question : A student concieved the rules bionomial momenclature as follows. If you find any mistake in the underline portions, correct them with appropriate words. The second word represents genus and begins with a small letter.
Answer» Solution :The SECOND word represents species NAME and BEGINS with SMALL letter.

Discussion

21518.	Question : A student concieved the rules bionomial momenclature as follows. If you find any mistake in the underline portions, correct them with appropriate words.. The first word in biological name represents 'species' and begins with a 'capital letter'
Answer» Solution :The first word in BIOLOGICAL name REPRESENTS GENUS and begins with CAPITAL letter.

Discussion

21519.	Question :A student collected 20 mustard twigs each with10 nodes, 30 guava twigs each with 20 nodes and 40 calotropis twigs each with 10 nodes. Calculate total number of leaves he has been collected in his bag
Answer» 1800 2000 2200 2400 Answer :C

Discussion

21520.	Question : A strong, sharp-pointed woody structure mostly arising from the wood and have connection with xylem elements of a stem, is called :
Answer» THORN PRICKLE TENDRIL all of these Solution :thorn

Discussion

21521.	Question : A: Stimulus is interpreted by the brain and not by sense organs. R: Sense organs act as transducers, transforming the stimulus energy into impulse energy.
Answer» A and R both are CORRECT and R is correct EXPLANATION of A. A and R are correct but R is not explanation of A. A is correct and R is FALSE. A and R are false ANSWER :A

Discussion

21522.	Question : A spore of moss on germination form
Answer» Sporophyte Leafy gametophyte PROTONEMA Prothallus Solution :A SPORE of MOSS, on GERMINATION FORM protonema.

Discussion

21523.	Question : A spiral cyanobacterium, cultivated in water tanks as protein rich food is
Answer» Spirillum Spirulina Nostoc Chlorella ANSWER :B

Discussion

21524.	Question : A spinal nerve is a __________ nerve while the olfactory nerve is a ___________nerve
Answer» ANSWER :MIXED ; SENSORY

Discussion

21525.	Question :A special type of inflorescne which begins as dichasial cyme and ends in monochasial cyme is found in
Answer» Lamiaceae Euphorbiaceae Moraceae APIACEAE ANSWER :A

Discussion

21526.	Question : A: Some thalloid forms of bryophytes are called liverworts. R: The thalli of liverworts look like liver of animals.
Answer» A and R both are CORRECT and R is correct EXPLANATION of A. A and R are correct but R is not explanation of A. A is correct and R is FALSE. A and R are false. ANSWER :A

Discussion

21527.	Question : A special meristem present at the root apex is known as
Answer» Dermatogen Calyptrogen Periblem Plerome Answer :B

Discussion

21528.	Question : A solution containing lesser concentrationthan inside a cell.
Answer» SOLUTION :HYPOTONIC.

Discussion

21529.	Question : A snail lacks
Answer» HEAD segmentation MUSCULAR FOOT ECHINODERMATA Answer :B

Discussion

21530.	Question : A smallest angiosperm with smallest flowers is
Answer» RAFFLESIA Wolffia Solvia STRIGA ANSWER :B

Discussion

21531.	Question : A small passage that permits continuity between scala vestibuli and scala tympani is
Answer» helicotrema Eustachian tube cochlea vestibule Solution :Both the SCALA vestibuli and scala tympani are connected with each other at the apex of the cochlea by a SMALL CANAL CALLED helicotrema.

Discussion

21532.	Question : The larynx opens into the pharynx through a slit-like opening, called the ....................
Answer» GLOTTIS gullet epiglottis trachea

Discussion

21533.	Question : A single-seeded, dry, non-dehiscent fruit in which pericarp is united with seed is known as
Answer» Caryopsis Cypsela Achene Loment Answer :A

Discussion

21534.	Question : A single cell performing all physiological activites is observed in
Answer» Monera Protista YEAST (FUNGI) All the above Answer :D

Discussion

21535.	Question : A simple reflex arc has the following sequence
Answer» sensory neuron `to` RECEPTOR `to` interneuron `to` motor neuron sensory neuron`to` motor neuron `to` receptor receptor `to` motor neuron `to` INTER neuron `to `sensory neuron `to` EFFECTOR receptor `to ` sensory neuron `to ` interneuron `to` motor neuron `to `effector

Discussion

21536.	Question : A simple mechanical tissue devoid of lignin is:
Answer» CHLORENCHYMA PARENCHYMA COLLENCHYMA SCLERENCHYMA SOLUTION :collenchyma

Discussion

21537.	Question : A simple living permanent tissue absent in roots is :
Answer» Collenchyma Chlorenchyma Parenchyma Aerenchyma Answer :A

Discussion

21538.	Question : A simple enzyme contains
Answer» Apoenzyme and METALLIC ION APO - ENZYME and Prosthetic group Only protein part All the above Answer :C

Discussion

21539.	Question : A sigmoid growth curve has distinct four phases. Name them.
Answer» SOLUTION :Lag PHASE, log phase, DECELERATING phase and STATIONARY phase.

Discussion

21540.	Question : A short, vertical underground stem that contains the food reserve is called
Answer» RHIZOME BULB corm tuber

Discussion

21541.	Question : A short, green, flattened branch resembling a leaf arising from the axil of a reduced scale leaf is called
Answer» PHYLLOCLADE cladode phyllode STIPULE

Discussion

21542.	Question : A shark has to swim continuously unlike a sardine. Give reason.
Answer» SOLUTION :Because SHARK do not have swim bladder(air-bladder)to REGULATE BUOYANCY

Discussion

21543.	Question : A shift from a reliance on .............. to reliance on …….. was pivotal in the evolution of all vertebrates.
Answer» NOTOCHORD; a backbone filter FEEDING, jaws gills, lungs all of the above Answer :D

Discussion

21544.	Question : A shark does not have
Answer» gill SLITS SWIM bladder placoid scales ventral MOUTH

Discussion

21545.	Question : A series of events leading to the formation of new cell is known as Cell Cycle. Give the diagrammatic view of Cell Cycle.
Answer» SOLUTION :

Discussion

21546.	Question : A : Serum cannot clott. R: Serum lacks fibrinogen.
Answer» A and B both are correct and Ris correct EXPLANATION of A . A and Rare correctbut Ris notexplanationof A. A is CORRECTAND R is false A and Rare false ANSWER :A

Discussion

21547.	Question : A: Senescence is induced by application of cytokinnin in plant. R: Cytokinnin promotes the breakdown of chlorophyll, proteins and nucleic acids.
Answer» A and R both are CORRECT and R is correct EXPLANATION of A. A and R are correct but R is not explanation of A. A is correct and R is FALSE. A and R are false ANSWER :D

Discussion

21548.	Question : A semi synthetic opioid drug is
Answer» AMPHETAMINES HEROINE Hashish Cocaine ANSWER :B

Discussion

21549.	Question : A seed is :
Answer» a female gametophyte a MATURE pollen TUBE a mature ovule . an IMMATURE EMBRYO Solution :a mature ovule .

Discussion

21550.	Question : A seed enclose three generations one within the others. Justify the statement.
Answer» Solution :A seed enclose three generations one within the other. 1.The OVULE or MEGASPORANGIUM formed from the parent sporophyte is diploid (2n). 2. An ovule consist of integument and nucleus. Both of them are diploid and belongs to SPOROPHYTIC generation. 3. The megaspores developing within the ovule is formed by meiosis and is haploid (n). The megaspore develops into haploid female gametophyte which develops an egg (n). 4. This represents haploid (n) gametophytic generation. The egg is then fertilized by a male gamete to form diploid (2n) zygote. 5. The zygote then develops into an embryo or future sporophyte (2n).

Discussion

Explore topic-wise InterviewSolutions in .

Question : A tendon attaches a …………... to a…………....

Question : A telocentric chromosome of metaphase consists of

Question : A technique of micropropagation is :

Question : A taxonomical aid used for identification of plants and animals based on similarities and dissimilarities is .........

Question : A table of taxonomic aids are given. Complete the table.

Question : A system of classification in which a large number of traits are considered is

Question : A : Surface of cerebrum is highly folded. R: To Increase the area for having more neurons.

Question : A superior quality commercial cork is obtained from

Question : A sunflower plants produces

Question : A substance unrelated to substrate reversibly changes the activity of an enzyme. It is

Question : A student wishes to study the cell structure under a light microscope having 10 x eyepiece and 45 x objective. He should illuminate the object by which one of the following colours of light so as to get the best possible resolution?

Question :A student observed in his school garden that leaves of some plants are folding at the evening when he is going to home and unfolded and expanded when he is coming to the school in the morning. Which part of the leaf is responsible for these changes

Question : A student of taxonomy was puzzled when told by his professor to look for a key to identify a plant. He went to his friend to clarify what 'Key' the professor was referring to ? What would the friend explain to him ?

Question : A student concieved the rules bionomial momenclature as follows. If you find any mistake in the underline portions, correct them with appropriate words. The second word represents genus and begins with a small letter.

Question : A student concieved the rules bionomial momenclature as follows. If you find any mistake in the underline portions, correct them with appropriate words.. The first word in biological name represents 'species' and begins with a 'capital letter'

Question :A student collected 20 mustard twigs each with10 nodes, 30 guava twigs each with 20 nodes and 40 calotropis twigs each with 10 nodes. Calculate total number of leaves he has been collected in his bag

Question : A strong, sharp-pointed woody structure mostly arising from the wood and have connection with xylem elements of a stem, is called :

Question : A: Stimulus is interpreted by the brain and not by sense organs. R: Sense organs act as transducers, transforming the stimulus energy into impulse energy.

Question : A spore of moss on germination form

Question : A spiral cyanobacterium, cultivated in water tanks as protein rich food is

Question : A spinal nerve is a __________ nerve while the olfactory nerve is a ___________nerve

Question :A special type of inflorescne which begins as dichasial cyme and ends in monochasial cyme is found in

Question : A: Some thalloid forms of bryophytes are called liverworts. R: The thalli of liverworts look like liver of animals.

Question : A special meristem present at the root apex is known as

Question : A solution containing lesser concentrationthan inside a cell.

Question : A snail lacks

Question : A smallest angiosperm with smallest flowers is

Question : A small passage that permits continuity between scala vestibuli and scala tympani is

Question : The larynx opens into the pharynx through a slit-like opening, called the ....................

Question : A single-seeded, dry, non-dehiscent fruit in which pericarp is united with seed is known as

Question : A single cell performing all physiological activites is observed in

Question : A simple reflex arc has the following sequence

Question : A simple mechanical tissue devoid of lignin is:

Question : A simple living permanent tissue absent in roots is :

Question : A simple enzyme contains

Question : A sigmoid growth curve has distinct four phases. Name them.

Question : A short, vertical underground stem that contains the food reserve is called

Question : A short, green, flattened branch resembling a leaf arising from the axil of a reduced scale leaf is called

Question : A shark has to swim continuously unlike a sardine. Give reason.

Question : A shift from a reliance on .............. to reliance on …….. was pivotal in the evolution of all vertebrates.

Question : A shark does not have

Question : A series of events leading to the formation of new cell is known as Cell Cycle. Give the diagrammatic view of Cell Cycle.

Question : A : Serum cannot clott. R: Serum lacks fibrinogen.

Question : A: Senescence is induced by application of cytokinnin in plant. R: Cytokinnin promotes the breakdown of chlorophyll, proteins and nucleic acids.

Question : A semi synthetic opioid drug is

Question : A seed is :

Question : A seed enclose three generations one within the others. Justify the statement.

Question : A spinal nerve is a nerve while the olfactory nerve is a _nerve