24277 + Interview Questions in Biology in Class 12

1.	Question : ' The endosperm of angiosperm is different from gymnosperm '' . Do you agree . Justify your answer.
Answer» Solution : THUS the ENDOSPERM tissue is DIFFERENT in Angiosperms and gymnosperm.

Discussion

2.	Question :The endosperm of gynmosperm is:
Answer» Haploid Diploid Triploid Polyploid ANSWER :A

Discussion

3.	Question : The endosperm of angiosperms is developed from(A) antipodals(B) zygote(C) synergids(D) secondary nucleus
Answer» antipodals zygote synergids secondary nucleus Answer :D

Discussion

4.	Question : The endosperm is diploid.
Answer» True False Answer :TRIPLOID

Discussion

5.	Question : The endosperm cells in an angiospermic plant has 18 chromosomes, the number of chromosomes in its root cells will be ……….. .
Answer» 12 6 18 24 Answer :A

Discussion

6.	Question : The endodermis of dicot stem is also referred as
Answer» BUNDLE sheath Phellogen CONJUNCTIVE tissue Starch sheath Answer :B

Discussion

7.	Question : The endometrium is the lining of
Answer» VAS deferens Oviduct Uterus None ANSWER :C

Discussion

8.	Question : The endocrine gland of insect which secrete the juvenile hormone is
Answer» CORPORA allata Prothoraic Gland Corpora cardiaca None of the above Answer :A

Discussion

9.	Question : The end products of fat digestion are fatty acids and______.
Answer» AMINO acid Nucleic acid Glycerol Cholesterol Answer :C

Discussion

10.	Question : The end product of oxidative phosphorylation is ___________ .
Answer» SOLUTION :`ATP + H_2O`.

Discussion

11.	Question : The end product of oxidative phosphorylation is
Answer» NADH OXYGEN ADP `ATP +H_(2)O` Answer :D

Discussion

12.	Question : The end product of glycolysis is:
Answer» Pyruvate Oxalo acetate Glucose Galactose Answer :A

Discussion

13.	Question : The end of ventricular systole of a cardiac cycle in ECG is marked by
Answer» QRS complex P wave 2 wave T wave Answer :D

Discussion

14.	Question : The end of T-wave marks the end of
Answer» VENTRICULAR diastole ventricular systole Auricularsystole Auricular diastole Answer :D

Discussion

15.	Question : The end of a long bone is called_____ .
Answer» ANSWER :EPIPHYSIS

Discussion

16.	Question : The embryonic stage with outer layer trophoblast and inner cell mass attached at one region of the trophoblast is
Answer» Morula Blastula Blastocyst Gastrula Answer :C

Discussion

17.	Question : The embryo at 16 - celled stage is knows as ____.
Answer» ANSWER :Morulla

Discussion

18.	Question : The elongated internode between calyx and corolla is called_____
Answer» ANSWER :ANTHOPHORE

Discussion

19.	Question : The emblem of Bombay Natural History Society (BNHS) is give below. Identify the bird :
Answer» EAGLE Erget Kingfisher Hornbill Answer :D

Discussion

20.	Question : The element which plays an important role in opening and closing of stomata is
Answer» Cl K P Ca Answer :B

Discussion

21.	Question : Extinction of cichlid fish from Lake Victoria is due to
Answer» Co-extinctions Over--exploitations Alien SPECIES invasions Habitat LOSS and fragmentatin Answer :A

Discussion

22.	Question : The electrons released during splitting of water are used to replace electrons removed from
Answer» PS-I PS-II Cytochrome complex NADP REDUCTASE complex Answer :B

Discussion

23.	Question : The electrons excited from pigment system IT.pass'directly to:
Answer» Cartenoids Ferredoxin Plastocyanin Plastoquinone Answer :D

Discussion

24.	Question : The electron released from PS I is first accepted by :-
Answer» Plastoquinone FRS Cytochrome Plastocyanin Answer :B

Discussion

25.	Question : The electrons and protons released during phosphoroclastic cleavage of Pyruvic acid are accepted respectively by
Answer» FERREDOXIN and Dinitrogen Dinitrogen and Ferreodoxin Dinitrogen Ferredoxin and Dinitrogenase Answer :D

Discussion

26.	Question : In leech, the ejaculatory ducts on both sides join to form the __________ .
Answer» VAS efferens GENITAL ATRIUM testes sacs prostate glands Solution :genital atrium

Discussion

27.	Question : The electric power plants cause ________ pollution.
Answer» ANSWER :A

Discussion

28.	Question : The electrical device to remove particulate matter present in the exhaust of thermal power plant.
Answer» SOLUTION :ELECTROSTATIC PRECIPITATOR (ESP)

Discussion

29.	Question : The elastic cell wall exerts a counter pressure to osmotic'pressure called wall pressure.
Answer» ANSWER :Turger PRESSURE

Discussion

30.	Question : The egg laying animals are called viviparous.
Answer» ANSWER :OVIPAROUS

Discussion

31.	Question : The egg apparatus of angiosperms 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

32.	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

33.	Question : The egg aparatus is made up of ...............
Answer» 1 EGG CELL and 2 antipodals 1 egg cell and 2 polar NUCLEI 1 egg cell and 1 secondary nuycleus 1 egg cell and 2 synergids Answer :D

Discussion

34.	Question : The effects resulting from vital activities of plants and animals constitute_____factor.
Answer» ANSWER :BIOTIC

Discussion

35.	Question : The effects of genetic drift are more marked in
Answer» LARGER populations Mendelian populations island populations smaller populations. SOLUTION :The RANDOM changes in gene frequencies in a population occuring by chance alone rather than by natural selection are called genetic drift or Sewall Wright effect. The EFFECTS of genetic drift are msot marked in very smalled isolated population, although it OCCURS in all populations.

Discussion

36.	Question : The effect of today's radioactive fallout will probably be more harmful to children of futrure generation than to present day children because
Answer» infants are more susceptible to radiations susceptibility to radiations INCREASE with age mutated genes are usually recessive all of these. Solution :The radioactive fallout can cause near-immediate effect by killing cells and damaging tissue. But radioactive fallout can ALSO casuse long term effect by causing MUTATIONS in the DNA of living cells. These mutated genes are usually recessive and so they can APPEAR anytime in our future generations. That is the reason why effect of radioactive fallout PROBABLY will be more harmful to children offutruegenerations than the present.

Discussion

37.	Question : The effect of individuals of the same species upon each other is called as :
Answer» REACTION Competition Coaction Ecesis Answer :A

Discussion

38.	Question : The effect of SO_2 and its transformation products on plants is :
Answer» DESTRUCTION of GOLGI apparatus Disintegration of proteins Chlorosis None of these Answer :C

Discussion

39.	Question : The edible part of ginger is :
Answer» Tuber Bulb Corm Rhizome Answer :D

Discussion

40.	Question : The edible part of the jak fruit is derived from
Answer» bracteloe BRACT PEDUNCLE ENDOSPERM ANSWER :A

Discussion

41.	Question : The edible part of coconut is_____
Answer» ANSWER :ENDOSPERM

Discussion

42.	Question : The ecosystem consists of :
Answer» Producers Consumers Decomposers All of these Answer :D

Discussion

43.	Question : The ectomycorrhiza form ………. On the root surface.
Answer» ROOT tuber mantle root hair vesicles Answer :B

Discussion

44.	Question : The ecological succession was first studied by :
Answer» Clements Hult Odum King Answer :D

Discussion

45.	Question : the Earth Summit held on Rio de Janeiroin 1992 was called to
Answer» discuss method to control pollution discuss SUSTAINABLE DEVELOPMENT TAKE APPROPRIATE measurefor CONSERVATION of biodiversity and sustainable utilisation of its benefit discuss the impact of deforestation on ecosystem Answer :C

Discussion

46.	Question : The Earth Summit held in Rio de Janeiro in 1992 was called :
Answer» to REDUCE `CO_(2)` EMISSIONS and global warming. for CONSERVATION of biodiversity and sustain- able utilization of its benefits. to ASSESS threat posed to native species by invasive WEED species. for immediate steps to discontinue use of CFCs that were damaging the ozone layer. Solution :for conservation of biodiversity and sustain- able utilization of its benefits.

Discussion

47.	Question : The earth fragmented before …………...millions years ago from the sun.
Answer» 4000 4500 5000 5500 Solution :5000

Discussion

48.	Question : The ears of a mammal living in a cold area are smaller than the one living in a warm area. This is an example of:
Answer» Gloger's rule Jordan's rule Allen's rule Bergman's law Answer :C

Discussion

49.	Question : The early embryo (upto 8 blastomeres) can be transferred into the fallopian tube is knows as
Answer» IUI IUT ZIFT ICSI Answer :C

Discussion

50.	Question : The early man whose skeleton is almost indistinguishablefrom that of modern man was:
Answer» JAVA MAN NEANDERTHAL man PEKING man Cro-Magnon man Answer :D

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Question : ' The endosperm of angiosperm is different from gymnosperm '' . Do you agree . Justify your answer.

Question :The endosperm of gynmosperm is:

Question : The endosperm of angiosperms is developed from(A) antipodals(B) zygote(C) synergids(D) secondary nucleus

Question : The endosperm is diploid.

Question : The endosperm cells in an angiospermic plant has 18 chromosomes, the number of chromosomes in its root cells will be ……….. .

Question : The endodermis of dicot stem is also referred as

Question : The endometrium is the lining of

Question : The endocrine gland of insect which secrete the juvenile hormone is

Question : The end products of fat digestion are fatty acids and______.

Question : The end product of oxidative phosphorylation is ___________ .

Question : The end product of oxidative phosphorylation is

Question : The end product of glycolysis is:

Question : The end of ventricular systole of a cardiac cycle in ECG is marked by

Question : The end of T-wave marks the end of

Question : The end of a long bone is called_____ .

Question : The embryonic stage with outer layer trophoblast and inner cell mass attached at one region of the trophoblast is

Question : The embryo at 16 - celled stage is knows as ____.

Question : The elongated internode between calyx and corolla is called_____

Question : The emblem of Bombay Natural History Society (BNHS) is give below. Identify the bird :

Question : The element which plays an important role in opening and closing of stomata is

Question : Extinction of cichlid fish from Lake Victoria is due to

Question : The electrons released during splitting of water are used to replace electrons removed from

Question : The electrons excited from pigment system IT.pass'directly to:

Question : The electron released from PS I is first accepted by :-

Question : The electrons and protons released during phosphoroclastic cleavage of Pyruvic acid are accepted respectively by

Question : In leech, the ejaculatory ducts on both sides join to form the __________ .

Question : The electric power plants cause ________ pollution.

Question : The electrical device to remove particulate matter present in the exhaust of thermal power plant.

Question : The elastic cell wall exerts a counter pressure to osmotic'pressure called wall pressure.

Question : The egg laying animals are called viviparous.

Question : The egg apparatus of angiosperms comprises

Question : The egg apparatus of angiosperm comprises :

Question : The egg aparatus is made up of ...............

Question : The effects resulting from vital activities of plants and animals constitute_____factor.

Question : The effects of genetic drift are more marked in

Question : The effect of today's radioactive fallout will probably be more harmful to children of futrure generation than to present day children because

Question : The effect of individuals of the same species upon each other is called as :

Question : The effect of SO_2 and its transformation products on plants is :

Question : The edible part of ginger is :

Question : The edible part of the jak fruit is derived from

Question : The edible part of coconut is_____

Question : The ecosystem consists of :

Question : The ectomycorrhiza form ………. On the root surface.

Question : The ecological succession was first studied by :

Question : the Earth Summit held on Rio de Janeiroin 1992 was called to

Question : The Earth Summit held in Rio de Janeiro in 1992 was called :

Question : The earth fragmented before …………...millions years ago from the sun.

Question : The ears of a mammal living in a cold area are smaller than the one living in a warm area. This is an example of:

Question : The early embryo (upto 8 blastomeres) can be transferred into the fallopian tube is knows as

Question : The early man whose skeleton is almost indistinguishablefrom that of modern man was: