24277 + Interview Questions in Biology in Class 12 Page 411 InterviewSolution

20501.	Question : Biodiversity is important in the maintenance of biosphere and its ecosystem.
Answer» Solution :Various aspects like maintenance of proper AMOUNTS of atmospheric gases, maintenance of global temperature, oceanic currents and WINDS for maintenance of CLIMATE regulation of rainfall, forests, conservation of soil, pollution of plants and purification of ground WATER are made possible due to biodiversity. THUS we can say that biodiversity is important in the maintenance of biosphere and its ecosystem.

Discussion

20502.	Question : Biodiversity is determined by
Answer» NUMBER of INDIVIDUALS in an area species richness evenness Both (B) and ( C ) ANSWER :D

Discussion

20503.	Question : Biodiversity impacts can be assessed by Assertion (A) : Fragmentation and Isolation. Reason (B) : Soil mapping.
Answer» ASSERTION and Reason is TRUE and Reason is correct EXPLANATION of Assertion. Assertion and Reason is true but Reason is not correct explanation of Assertion. Assertion is true Reason is false. Both Assertion and Reason are false. Answer :A::C

Discussion

20504.	Question : Biodiversity conservation means………..
Answer» The conservation of ECOSYSTEMS. The conservation of SPEICES. The conservation of GENE complexes. The conservation of all above. SOLUTION :The conservation of all above.

Discussion

20505.	Question :Biodiversity act of India was passed in _____________.
Answer» 1992 1996 2000 2002 Answer :D

Discussion

20506.	Question : Biocontrol is the best alternative for chemical control. Give one example for organisms that can be used as biocontrol agents pests.
Answer» SOLUTION :BACILLUS thuringiensis

Discussion

20507.	Question : Biodiesel is obtained from :
Answer» Jatropa biloba Cedrus Jatropha curcas None of these Answer :A

Discussion

20508.	Question : Biochemical phase in photosynthesis was discovered for the first time by using C^(14)
Answer» CALVIN BLACKMAN HILL Arnon Answer :A

Discussion

20509.	Question : Biocontrol agents.
Answer» Solution :(1)Te USE of microbes in controlling plant diseases and pests is called biocontrol,while the microbes called biocontrol agents.(2)There are four groups of biocontrol agents,ciz.,bacteria,FUNGI,protozoans and viruses,which are either pathogens,predators or PARASITES on the pest.(3)The list below shows the microbes and their HOSTS

Discussion

20510.	Question : Biochemical oxygen demand measures
Answer» AIR pollution Industrial pollution Pollution CAPACITY of effluents Dissolved oxygen NEEDED by microbes to decompose wastes Answer :D

Discussion

20511.	Question : Biochemical Oxygen Demand (BOD) may not be a good index for pollution in water bodies receiving effluents from
Answer» DOMESTIC sewage dairy INDUSTRY PETROLEUM industry SUGAR industry SOLUTION :petroleum industry

Discussion

20512.	Question : Biochemical cycle with gaseous phase is
Answer» CARBON SODIUM PHOSPHORUS MAGNESIUM. ANSWER :a

Discussion

20513.	Question : Biochar is ............ (i) a kind of char coal used as a soil amendment (ii) a potent way of sequestring cash (iii)made from biomass via pyrolysis (iv) a notable solid, rich in carbon.
Answer» (a) (i) and (III) is correct (b) (II) and (iv) is correct (c) (i) and (ii) is correct (d)all the above is correct Solution : all the above is correct

Discussion

20514.	Question :Bio-pesticides are(A) The chemicals which are used to destroy the pests.(B) The living organism or their products which are used for the pest control.(C) The organisms which destroy the crops.(D) None of these
Answer» The CHEMICALS which are used to destroy the pests. The living ORGANISM or their products which are used for the pest CONTROL. The ORGANISMS which destroy the crops. None of these Solution :The living organism or their products which are used for the pest control.

Discussion

20515.	Question : Bio-magnification is a .......... in the amount of substance in tropic level of food chain ?(A) Decrease(B) Little bit change(C) Increase(D) No change
Answer» Decrcase Little BIT CHANGE Increase No change ANSWER :C

Discussion

20516.	Question : Bio-fortification is a practical approach to improve the public health. Name any four such crops released by IARI.
Answer» SOLUTION :(1) Vitamin A enriched CARROTS (2) Vitamin C enriched tomato (3)Iron and CALCIUM enriched spinach (4) Protein enriched garden pea

Discussion

20517.	Question : Binomial of teak is ___________ .
Answer» ANSWER :Tectona grandis

Discussion

20518.	Question : Binomial nomenclature includes three words.
Answer» ANSWER :TWO

Discussion

20519.	Question : Binary fission involves
Answer» MITOSIS only MEIOSIS only mitosis and meiosis only AMITOSIS ANSWER :A

Discussion

20520.	Question : Bilirubin and biliverdin are derived from
Answer» Globin Haem Iron Fat Answer :B

Discussion

20521.	Question : Bilirubin and biliverdin are excreted cheify through_____.
Answer» Urine Faeces Sweat Vitamins Answer :B

Discussion

20522.	Question : Bile produced in the liver is associated with which of the following?
Answer» EMULSIFICATION of FATS into tiny GLOBULES in the small INTESTINE Digestive action of pancreatic amylase Emulsification of fats into tiny globules in the stomach Digestion of proteins into AMINO acids Answer :A

Discussion

20523.	Question : Bile is secreted by which part of liver?
Answer» Sinusoids Hepatocytes Kupffer cells Glisson's capsule Answer :B

Discussion

20524.	Question :Bile is formed in(B) (C) (D) Blood.
Answer» GALL BLADDER LIVER Spleen blood ANSWER :B

Discussion

20525.	Question : Bile helps in digestion of:
Answer» Carbohydrate Fat Protein Minerals Answer :B

Discussion

20526.	Question : Bignonia and Habanera are plants mainly living on rocks of which area ?
Answer» NORTHERN Ghats Southern Ghats Eastern Ghats WESTERN Ghats SOLUTION :Western Ghats

Discussion

20527.	Question : Big holes in Swiss cheese are made by a(A) machine(B) bacterium that produces methane gas(C) bacterium producing a large amount of carbon dioxide(D) fungus that releases a lot of gases during its metabolic activities.
Answer» machine bacterium that produces methane GAS bacterium producing a large amount of carbon DIOXIDE fungus that releases a lot of GASES during its METABOLIC activities. Solution : Large holes in Swiss CHEESE are due to production of large amount of `CO_2`by a bacterium named Proponibacteriumsharmanii.

Discussion

20528.	Question : Big holes in Swiss cheese are made by a :
Answer» a machine a bacterium that produces methane gas a bacterium producing a large amount of CARBON dioxide a fungus that releases a LOT of gases during its METABOLIC activities Answer :C

Discussion

20529.	Question : Big bang theory explains
Answer» ORIGIN of earth Origin of universe Origin of ocean Origin of FIRST life Answer :B

Discussion

20530.	Question : Big bang theory is connected with
Answer» ORIGIN of earth origin of universe origin of moon origin of life Answer :B

Discussion

20531.	Question : Bicollateral vascular bundles are. found in_____stem
Answer» ANSWER :CUCURBITA

Discussion

20532.	Question : Biceps is a_____muscle.
Answer» FLEXOR Extensor Both flexor and extensor None of these Answer :A

Discussion

20533.	Question : Bicarbonate ions formed inside erythrocytes pass out into plasma while chloride of plasma pass into erythrocytes, This phelomenon is called:
Answer» BOHR effect Haldane effect Hamburger phenomenon Pneumotaxic area Answer :C

Discussion

20534.	Question : Bicarbonat is produced inside
Answer» Lymphocyte Erythrocyte Neutrophils Basophils Answer :B

Discussion

20535.	Question : Bhutia is an indian breed of
Answer» CATTLE horse sheep pigs Answer :B

Discussion

20536.	Question : Bhopal gas tragedy occurred in 1986
Answer» ANSWER :A::D

Discussion

20537.	Question : Bhakarwal breed of sheep is distributed in
Answer» GUJRAT maharashtra rajasthan JAMMU & KASHMIR Answer :D

Discussion

20538.	Question : BGA chiefly used as_____.
Answer» ANSWER :BIOFERTILIZER

Discussion

20539.	Question : BGA is chiefly used as fertilizer in:
Answer» Wheat Paddy Mustard Gram Answer :B

Discussion

20540.	Question : Between breaths, the intrapleural pressure is approximately _______ mmHg less than atmospheric pressure.
Answer» 1 4 8 10 Answer :B

Discussion

20541.	Question : Between an annual and a perennial plant, which one has a shorter juvenile phase ? Give one reason.
Answer» Solution :An ANNUAL has a SHORTER juvenile phgase as they have to complete its life CYCLE in one growing season. HENCE has shorter juvenile PHASE.

Discussion

20542.	Question : Best milch breed of cattle is
Answer» Holstein-Friesian Sahiwal Red SINDHI Deoni Solution :Holstein-Friesian

Discussion

20543.	Question : Best source to obtain areolar connective tissue for histology is
Answer» Perimysium Periosteum Perichondrium Epimysium Answer :A

Discussion

20544.	Question : Best genetic material is :-
Answer» any nucleic acid a nucleic acid made from a nucleic acid template that has been or is capable of being USED as a template in REPLICATION a nucleic acid that is capable of being used a template in transcription a nucleic acid that is capable of being used as a template in replication and transcription Answer :D

Discussion

20545.	Question : Best example of co-evolution is
Answer» Fig trees and POLLINATOR species of wasp FUNGUS and CYANOBACTERIA Sea anemone and CLOWN fish All of them ANSWER :D

Discussion

20546.	Question : Best egg-layer laying large sized whitish egg is __________________.
Answer» ANSWER :WHITE LEGHORN

Discussion

20547.	Question :Best defined function of manganese in green plants is,
Answer» PHOTOLYSIS of water Clavin cycle Nitrogen fixation Water absorption Answer :A

Discussion

20548.	Question : Best contraceptive measure in males is :-
Answer» COITUS interruptus Spermicidal jelly Drug gossypol Condom Answer :D

Discussion

20549.	Question : Best cloning organism for genetic engineering and biotechnology is
Answer» Agrobacterium Pseudomonas E. coli Lambda phage Answer :C

Discussion

20550.	Question : Best aquarium is located at
Answer» VISHAKHAPATNAM chennai tarapur MUMBAI z.s.i CALCUTTA ANSWER :C

Discussion

Explore topic-wise InterviewSolutions in .

Question : Biodiversity is important in the maintenance of biosphere and its ecosystem.

Question : Biodiversity is determined by

Question : Biodiversity impacts can be assessed by Assertion (A) : Fragmentation and Isolation. Reason (B) : Soil mapping.

Question : Biodiversity conservation means………..

Question :Biodiversity act of India was passed in _____________.

Question : Biocontrol is the best alternative for chemical control. Give one example for organisms that can be used as biocontrol agents pests.

Question : Biodiesel is obtained from :

Question : Biochemical phase in photosynthesis was discovered for the first time by using C^(14)

Question : Biocontrol agents.

Question : Biochemical oxygen demand measures

Question : Biochemical Oxygen Demand (BOD) may not be a good index for pollution in water bodies receiving effluents from

Question : Biochemical cycle with gaseous phase is

Question : Biochar is ............ (i) a kind of char coal used as a soil amendment (ii) a potent way of sequestring cash (iii)made from biomass via pyrolysis (iv) a notable solid, rich in carbon.

Question :Bio-pesticides are(A) The chemicals which are used to destroy the pests.(B) The living organism or their products which are used for the pest control.(C) The organisms which destroy the crops.(D) None of these

Question : Bio-magnification is a .......... in the amount of substance in tropic level of food chain ?(A) Decrease(B) Little bit change(C) Increase(D) No change

Question : Bio-fortification is a practical approach to improve the public health. Name any four such crops released by IARI.

Question : Binomial of teak is ___________ .

Question : Binomial nomenclature includes three words.

Question : Binary fission involves

Question : Bilirubin and biliverdin are derived from

Question : Bilirubin and biliverdin are excreted cheify through_____.

Question : Bile produced in the liver is associated with which of the following?

Question : Bile is secreted by which part of liver?

Question :Bile is formed in(B) (C) (D) Blood.

Question : Bile helps in digestion of:

Question : Bignonia and Habanera are plants mainly living on rocks of which area ?

Question : Big holes in Swiss cheese are made by a(A) machine(B) bacterium that produces methane gas(C) bacterium producing a large amount of carbon dioxide(D) fungus that releases a lot of gases during its metabolic activities.

Question : Big holes in Swiss cheese are made by a :

Question : Big bang theory explains

Question : Big bang theory is connected with

Question : Bicollateral vascular bundles are. found in_____stem

Question : Biceps is a_____muscle.

Question : Bicarbonate ions formed inside erythrocytes pass out into plasma while chloride of plasma pass into erythrocytes, This phelomenon is called:

Question : Bicarbonat is produced inside

Question : Bhutia is an indian breed of

Question : Bhopal gas tragedy occurred in 1986

Question : Bhakarwal breed of sheep is distributed in

Question : BGA chiefly used as_____.

Question : BGA is chiefly used as fertilizer in:

Question : Between breaths, the intrapleural pressure is approximately _______ mmHg less than atmospheric pressure.

Question : Between an annual and a perennial plant, which one has a shorter juvenile phase ? Give one reason.

Question : Best milch breed of cattle is

Question : Best source to obtain areolar connective tissue for histology is

Question : Best genetic material is :-

Question : Best example of co-evolution is

Question : Best egg-layer laying large sized whitish egg is __________________.

Question :Best defined function of manganese in green plants is,

Question : Best contraceptive measure in males is :-

Question : Best cloning organism for genetic engineering and biotechnology is

Question : Best aquarium is located at