22339 + Interview Questions in Biology in Class 11 Page 218 InterviewSolution

10851.	Question : The enzyme found in tears, saliva, and nasal secretions that destroys bacteria is
Answer» an INTERFERON a LYSOZYME an ANTIBODY all of these Answer :B

Discussion

10852.	Question : The enzyme __________ converts DOPA to Melanin.
Answer» ANSWER :TYROSINASE

Discussion

10853.	Question : The enzyme ATP-synthetase is located in …………………….. .
Answer» SOLUTION :HEAD of `F_(i)` PARTICLES

Discussion

10854.	Question : The enzymatic activity stops due to ...................... of enzymes at very high temperature
Answer» SOLUTION :DENATURATION

Discussion

10855.	Question : The entry of pollen tube into the ovule through micropyle is called
Answer» POROGAMY MESOGAMY anisogamy chalazogamy Answer :A

Discussion

10856.	Question : Theentire process of photosynthesis consists of a number of reactions. Where in the cell do each of these take place ? (a) Synthesis of ATP & NADPH …….. . (b) Photolysis of water ….. . (c ) Fixation of CO_(2) …… . (d) Synthesis of sugar molecule ....... . Synthesis of strach ...... .
Answer» Solution :(a) ATP and NADPH are synthesized outside Thylakoid membrane. (b) Spliting of wateris DONE in inner side of Thylakoid membrane ( c) FIXATION of `CO_(2)` : In stroma chloroplast (d) FORMATION of molecule of sugar. In chloroplast. Formation of strach - In protoplasm.

Discussion

10857.	Question : The enlargement u na column causes ………..
Answer» SOLUTION :N/A

Discussion

10858.	Question : The energy yield in termsof ATP is higher in aerobic respiration than during anaerobic respiration. Why is there anaerobicrespiration even in organisms thatlive in aerobic conditionlike humanbeings and angiosperms ?
Answer» Solution :In humanbeings aerobic respiration takes placeunder normal conditions but duringhard workout more muscle power (ATP) is NEEDED and more `O_(2)` is absorbed /in takes occurs for energybaiding In muscles, in more need of oxygen its deficitarises so muscles start forming lactic acid so requirementof ENERGY is satisfied during anaerobic respiration, similarlyanaerobicrespiration takes place in cells of yeast DUE todeficit of `O_(2)` and alcohol and `CO_(2)`are FORMED.

Discussion

10859.	Question : The energyyield in terms of ATP is higher in aerobic respiration than during anaerobic respiration. Explain .
Answer» Solution :`{:("Aerobic respiration ","Anaerobic respiration "),("-In aerobic respiration, there is complete OXIDATION of substratemolecules producing ATP MOLECULES." ,"-In anaerobic respiration there is incomplete oxidation of substrate molecules so the ATP produced are less in number." ),("-Aerobic respiration of GLUCOSE PRODUCES 36 ATP molecules " + H_(2) O + CO_(2) ,"-Anaerobic respiration of glucose, when OCCURS in yeastproduces 2ATP molecules + thylacohol " + CO_(2)):}`

Discussion

10860.	Question : The energy yield in term of ATP is higher is aerobic respiration than during anaerobic respiration - Discuss.
Answer» Solution :In aerobic RESPIRATION, oxidation of one molecule of GLUCOSE generates 36 ATP molecules. On the other hand, during anaerobic respiration , the glucose is incompletely oxidised producing only 2 ATP molecules. Thus it is CLEAR that aerobic respiration is more ATP beneficial than anaerobic RESPECTIVELY.

Discussion

10861.	Question : The energy storage at producer level which can be consumed by herbivores
Answer» NET PRODUCTIVITY Net PRIMARY productivity Secondary productivity Gross primary productivity ANSWER :B

Discussion

10862.	Question : The energy source that drives the upward flow of water is
Answer» light glucose ATP solar heat Answer :D

Discussion

10863.	Question : The energy invested in the production of new tissue by autotrophic organisms is termed as
Answer» GROSS PHOTOSYNTHESIS efficiency Decomposers gross photosynthesis net PRIMARY production Answer :A

Discussion

10864.	Question : The endsperm of a plant is haploid, diploid or triploid.
Answer» SOLUTION :TRIPLOID.

Discussion

10865.	Question : The endosperm of gymnosperm is
Answer» diploid triploid tetraploid haploid Answer :(d)

Discussion

10866.	Question : The endosperm of gymnosperm is ………………….. .
Answer» HAPLOID TRIPLOID DIPLOID POLYPLOIDY ANSWER :A

Discussion

10867.	Question : The endosperm of an angiosperm differs from that of a gymnosperm in that it :
Answer» contains GLYCOGEN RATHER than starch contains less fat does not FORM until fertilization takes place only LASTS a few days Solution :does not form until fertilization takes place

Discussion

10868.	Question :The endosperm is formed as a result of double fertilisation (triple fusion).What is its function ?
Answer» SOLUTION :ENDOSPERM STORES the FOOD.

Discussion

10869.	Question : The ''endosperm'' of a gymnosperm represent
Answer» GAMETOPHYTIC tissue Sporophytic tissue Tissue FORMED by DOUBLE fertilization Polyploid tissue Answer :A

Discussion

10870.	Question : The endosperm in gymnosperms is a ………tissue, while in angiosperm, …….. tissue.
Answer» a) HAPLOID b) Diploid c) TRIPLOID d) Tetraploid Solution :haploid , triploid

Discussion

10871.	Question : The endoplasmic reticulum is a membranous system thatis continuous with the nuclear envelope.
Answer» ANSWER :TRUE

Discussion

10872.	Question : The endocrine gland of insects, which secretes the juvenile hormone, is
Answer» CORPORA allata vorpora ALBICANS corpora myecaena all of these Solution :corpora allata

Discussion

10873.	Question : The end time changes of prophase can be considered inverse changes of ........ phase.
Answer» Beginning of prophase Metaphase Telophase ANAPHASE ANSWER :C

Discussion

10874.	Question : The end productof oxidativephosphorylation is (A) NADH (B) Oxygen (C) ADP (D) ATP + H_(2)O
Answer» NADH Oxygen ADP `ATP + H_(2)O` ANSWER :A::B::D

Discussion

10875.	Question : The empty protein coat left outside after penetration is …………..
Answer» HOST ghost CAPSID CAPSOMERES ANSWER :B

Discussion

10876.	Question : The embryosac formation in angiosperm is preceded by ........
Answer» SOLUTION :MEIOSIS

Discussion

10877.	Question : The embryo sac of an angiosperm is made up of
Answer» 8 cells 7 cells and 8 NUCLEI 8 nuclei 7 cells and 7 nuclei Solution :In angiosperms Embryo sac is a female gametophyte. It possesses two SYNERGIDS, 1 egg cell, 3 antipodal cells and one secondary nucleus.

Discussion

10878.	Question : The embryo sac of an angiosperm is made up of :
Answer» 8 CELLS 7 cells and 8 NUCLEI 8 nuclei 7 cells and 7 nuclei SOLUTION :7 cells and 8 nuclei

Discussion

10879.	Question : The elongated sclerenchyma cells pointed at both ends are called
Answer» Fibres sclereids tracheids vessels Answer :C

Discussion

10880.	Question : ................. requires large amount of water for its elimination
Answer» urea uric ACID AMMONIA creatinine Solution :ammonia

Discussion

10881.	Question : The element that is not very mobile and remains fixed to mitochondria and chloroplasts is
Answer» potassium calcium sulphur iron Answer :D

Discussion

10882.	Question : The element which is not remobilized?
Answer» Phosphorous POTASSIUM Calcium Nitrogen ANSWER :C

Discussion

10883.	Question : The electrical potential diference between outside and inside of a nerve axon before excitation is known as resting potential.
Answer» RESTING potential action potential spike potential reaction potential Solution :The electrical potential DIFFERENCE between outside and INSIDE of a nerve fibre before EXCITATION (polarised nerve fibre) is known as resting POTENTAIL whose value is -70 mV.

Discussion

10884.	Question : The eggs of silkworms after ten days of incubation hatch into larva called as.............
Answer» SOLUTION :CATERPILLAR

Discussion

10885.	Question : The eggs and poultry meat are the richest sources of ............... and vitamins.
Answer» SOLUTION :PROTEINS

Discussion

10886.	Question : The eggs of frog are coated by
Answer» Yolk MUCUS Albumin CHITIN Answer :C

Discussion

10887.	Question : The egg apparatus of angiosperm comprises
Answer» an egg CELL and TWO ANTIPODALS an egg cell and two synergids an egg cell and two POLAR nuclei an egg cell and the central cell Answer :B

Discussion

10888.	Question : The egestion of feces through the anal opening is called .............
Answer» SOLUTION :N/A

Discussion

10889.	Question : The efferent neuron carries signals from effector to CNS.
Answer» ANSWER :FALSE

Discussion

10890.	Question : The effectiveness of an enzyme is affected least by -
Answer» Temperature Concentration of the substrate Original ACTIVATION ENERGY of the system Concentration of the enzyme Answer :C

Discussion

10891.	Question : The edicble subunit vaccine used against this disease is.
Answer» measles HEPATITIS cholera FEET and MOUTHS ANSWER :A

Discussion

10892.	Question : The edible portion in lotus is
Answer» Mescocarp ENDOSPERM Cotyledons Aril ANSWER :D

Discussion

10893.	Question : The edible part of cauliflower is the :
Answer» VEGETATIVE apex INFLORESCENCE FLOWER FRUIT SOLUTION :inflorescence

Discussion

10894.	Question : The earthworm employ cross fertilization in which
Answer» the sperm of ONE INDIVIDUAL FERTILIZES the EGGS of the other the sperm of one individual fertilizes the eggs of the same two sperms fertilizes the single OVA of the same individual many sperms fertilizes the single ova of the same individual Answer :A

Discussion

10895.	Question : The Ear ossicles malleus, incus and stapes are attached in circular/chain like fashion.
Answer» SOLUTION :CHAIN LIKE FASHION

Discussion

10896.	Question : The ear in frog is
Answer» STATIC ORGAN ACOUSTIC organ Rheoreceptor STATO acoustic organ ANSWER :D

Discussion

10897.	Question : The duodenum receives bile from the follwing
Answer» PANCREAS gall bladder both 1 & 2 NONE ANSWER :B

Discussion

10898.	Question : The duckbill platypus is an exception to many mammals because it :
Answer» LACKS hair is cold blooded doesn't secrete MILK doesn't give birth but LAYS EGGS Solution :doesn.t give birth but lays eggs

Discussion

10899.	Question : The ducts in male reproductive system of earthworm that open exterior through pores in 18^(th) segment are
Answer» a. common prostatic & OVIDUCTS b. DUCTS of accesory glands & prostatic ducts c. oviducts & prostatic ducts d. common prostatic DUCT & spermatic ducts ANSWER :D

Discussion

10900.	Question : The 'dub' sound is associated with the closure of..................valves.
Answer» SOLUTION :SEMILUNAR

Discussion

Explore topic-wise InterviewSolutions in .

Question : The enzyme found in tears, saliva, and nasal secretions that destroys bacteria is

Question : The enzyme __________ converts DOPA to Melanin.

Question : The enzyme ATP-synthetase is located in …………………….. .

Question : The enzymatic activity stops due to ...................... of enzymes at very high temperature

Question : The entry of pollen tube into the ovule through micropyle is called

Question : The enlargement u na column causes ………..

Question : The energy yield in termsof ATP is higher in aerobic respiration than during anaerobic respiration. Why is there anaerobicrespiration even in organisms thatlive in aerobic conditionlike humanbeings and angiosperms ?

Question : The energyyield in terms of ATP is higher in aerobic respiration than during anaerobic respiration. Explain .

Question : The energy yield in term of ATP is higher is aerobic respiration than during anaerobic respiration - Discuss.

Question : The energy storage at producer level which can be consumed by herbivores

Question : The energy source that drives the upward flow of water is

Question : The energy invested in the production of new tissue by autotrophic organisms is termed as

Question : The endsperm of a plant is haploid, diploid or triploid.

Question : The endosperm of gymnosperm is

Question : The endosperm of gymnosperm is ………………….. .

Question : The endosperm of an angiosperm differs from that of a gymnosperm in that it :

Question :The endosperm is formed as a result of double fertilisation (triple fusion).What is its function ?

Question : The ''endosperm'' of a gymnosperm represent

Question : The endosperm in gymnosperms is a ………tissue, while in angiosperm, …….. tissue.

Question : The endoplasmic reticulum is a membranous system thatis continuous with the nuclear envelope.

Question : The endocrine gland of insects, which secretes the juvenile hormone, is

Question : The end time changes of prophase can be considered inverse changes of ........ phase.

Question : The end productof oxidativephosphorylation is (A) NADH (B) Oxygen (C) ADP (D) ATP + H_(2)O

Question : The empty protein coat left outside after penetration is …………..

Question : The embryosac formation in angiosperm is preceded by ........

Question : The embryo sac of an angiosperm is made up of

Question : The embryo sac of an angiosperm is made up of :

Question : The elongated sclerenchyma cells pointed at both ends are called

Question : ................. requires large amount of water for its elimination

Question : The element that is not very mobile and remains fixed to mitochondria and chloroplasts is

Question : The element which is not remobilized?

Question : The electrical potential diference between outside and inside of a nerve axon before excitation is known as resting potential.

Question : The eggs of silkworms after ten days of incubation hatch into larva called as.............

Question : The eggs and poultry meat are the richest sources of ............... and vitamins.

Question : The eggs of frog are coated by

Question : The egg apparatus of angiosperm comprises

Question : The egestion of feces through the anal opening is called .............

Question : The efferent neuron carries signals from effector to CNS.

Question : The effectiveness of an enzyme is affected least by -

Question : The edicble subunit vaccine used against this disease is.

Question : The edible portion in lotus is

Question : The edible part of cauliflower is the :

Question : The earthworm employ cross fertilization in which

Question : The Ear ossicles malleus, incus and stapes are attached in circular/chain like fashion.

Question : The ear in frog is

Question : The duodenum receives bile from the follwing

Question : The duckbill platypus is an exception to many mammals because it :

Question : The ducts in male reproductive system of earthworm that open exterior through pores in 18^(th) segment are

Question : The 'dub' sound is associated with the closure of..................valves.