Quiznetik

Biology | Set 31

1. From the given option which is the appropriate for ecto parasite animal Ascaris, Tapeworm, plas modium, mites

Correct : C. macrofauna

2. Which living organism is seen in the hot water spring having temperature more than 100 C ..

Correct : B. Thermoacidophils

3. Find out population density. Since last 4 years number of lions in a squre forest is 500 (length of forest =10 km)

Correct : A. 1.25 lions/year . 2k meter

4. Average human population in a certain time area is 5000 in which 1111 children are produced during an years, find out the birth rate ?

Correct : C. 0.2222

5. In birthrate and deathrate is equal, then what will be the Vital Index ?

Correct : B. = 100

6. Which option is correct for the given statement . Statement X : Density dependent factors are intrinsic Reason R : They are generated in population only

Correct : A. Both statement are true

7. In a population of frog ‘J’ type of population growth curve is seen than which information from the given graph can be true for “ point A” (i) Vital Index < 100 (ii) Birth rate < death rate (iii) Birht rate > death rate

Correct : D. I, II

8. The given graph shows seasonal changes in the population of Birds of Gujarat in the year 2002. In the given graph what is true for point X ?

Correct : D. None of these

9. Producers --->Decomposers ---->’X’, then what will be ‘X’ ?

Correct : D. None of these

10. In given chart,what is the problem seen in living organism staying in‘X’ denoted area ?

Correct : C. a & b both

11. What is correct for the given statement ? Statement P : Environmental study is linked with ecology StatementQ : Ecology is included in environmental study.

Correct : A. Both statement are true

12. What is the vital Index, if Birht rate is 0 and Death rate = 5 ?

Correct : A. 0

13. If the Birth rate is 10 and death rate is 0 then what is VITAL INDEX ?

Correct : C. Infinative

14. Which is appropriate for the following statement ? Statement X : Pacific salmon fish reproduces only once in its life time. Statement Y : In a reproductive season it lays 2,80,000,000 eggs. X Y

Correct : C. True False

15. Mycobiont Supplies X to phycobiont and phycobiont supplies Y to mycobiont, then what is true for X and Y ?

Correct : D. X : Minerals Y : organic nutrients

16. In a population of salmon fish, potential Natality is 10,000 while realised mortality is 200, then the Vitlal Index =

Correct : B. less then 50

17. Which of the following is not possible in ecosystem where microflora is absent

Correct : D. None of these

18. If marine fish is kept in fresh water, will it survive

Correct : C. No, Because it can not adapt

19. What is true for both the organism showing interspecific compitition ?

Correct : B. more or less harmful effect to both

20. If at “t” time population density is N, then what is the equation for the population density at (t+1) time ?

Correct : D. All of these

21. Write appropriate option for antibiosis

Correct : A. Penicillium fungi and certan gram +ve bacteria

22. In which subdivision of aquatic ecosystem thermal stratification in seen ?

Correct : B. deep fresh water habitat

23. In which of the following aquatic ecosystems habitat fluid (liquid) is very concetrated compared to body fluid ?

Correct : A. Marine

24. Which of the following is true with reference to temperature diffrence ?

Correct : A. 1. Terrestrial Habital > Aquatic Habitat 2. Sea < Deep fresh water lakes

25. Water holding capacity of land depends on ?

Correct : D. All of these

26. What true for the following statements ? Statement X : During evolution many species, by continous development of their internal environment, made their physiologycal processes more efficient. Statement Y : Orgenisms show adaptations in order to survive in the enviornment X Y X Y

Correct : A. True True

27. In which of the following organism water is stored in its transformed from and not water as such ?

Correct : A. camel

28. Which path is followed by plants as a part of adaptation in an ecosystem where Kangaroo rat is living ?

Correct : C. CAM Path

29. Which is true for the following statements ? Statement X : Cursorial animals have spindle shaped body Statement Y : Because of narrow head they can prepare burrow properly X Y

Correct : D. True True

30. What is the temperature at which archeobacteria can survive ?

Correct : D. All of these

31. To whom can we correlate the young one developing from the eggs of Daphnis which are laid at normal room temperature ? (i) queen bee (ii) worker bee (iii) male (drone) bee

Correct : A. i, ii

32. Which is appropriate option if we take ‘T’ for correct statement and’F’ for wrong statement ? (i) Energy pyramids are always upright. (ii) Detritus food chain begins with dead organic matter (iii) C4 path is the only path seen in xerophytes (iv) Biodiversity is less in equatorial region because of more sunlight (v) At normal Temperature daphnis lays parthenogenetic eggs. which develops into male(0 )

Correct : B. TFFFF

33. Increase and decrease in a population in one of the places in USA, because of sandy cyclone is given below. Which type of graph is possible for total no. of individuals in a population v/s month ? Month Birth rate Imigration Death Emigration July 40 100 30 20 August 100 200 50 45 September 200 800 100 10 October 100 -- 5000 3000

Correct : B. J. Shaped

34. Hygroscopic skin is seen in.....

Correct : C. Spiny tailed lizard

35. What is true for marine animals ?

Correct : A. Because of exosmosis they drink sea water

36. In order to find out VITAL INDEX in Rampur Village, following information was gathered Death Rate = 1/x Birth Rate = z Average population = 1/y What is the Vital Index ?

Correct : A. xyz X 100

37. What is the true for the community ecology diagram ?

Correct : C. Involvement of 4 species of a community

38. Match the column I with column II Column I Column II (1) Astacus (p) Hydrophiic skin (2) Marine turtle (q) green gland (3) Spiny lizard (r) water storage in intestine (4) Uromatrix (s) salt glands

Correct : A. (1-q), (2-s), (3-p) (4-r)

39. Which of the following is incorrect if ‘O’ sign is used for benificial and ‘+’ sign for harmful ?

Correct : A. Penicillium <--> Gram +ve bacteria ; Penicillium: ‘+’

40. What will happen if ‘X’ which is related to this reaction is absent ?

Correct : D. All the statements given are correct

41. In the section of lichen which layer is seen just below “ upper cortex”

Correct : D. All of these

42. What is true for the given statements ? Statement X : Protopterus aestivate during winter to overcome dry period Statement Y : The process of aestivation in protopterus is to overcome unfavourable condition

Correct : D. X- wrong Y- correct

43. What is true for the given statement ? Statement X : Most of the animals and almost all the plants cannot keep up their internal enviornment constant Statement Y : process of osmoregulation in plants is an example of this

Correct : A. Both statements are true

44. X= Arthropods, Y = Mollusca, z = Coelenterates :-If the X by using Y, lives benifical life with z, then which of the following is correct example ?

Correct : C. X = Hermit crab Y = Gastropoda Z = sea anenone

45. From the given option find out the correct pair ?

Correct : C. Microfauna - fungi

46. Mathc column I with column II Column - I Column - II 1. Mutualism (p) Barnacles 2. Competition (q) Tiger 3. Predation (r) Mites 4. Parasitism (s) Sea anemone

Correct : C. (1-s), (2-p), (3-q) (4-r)

47. Give correct option for the given true and false statements (i) Some insects, birds and mammals living in warm and dry climate have more darker black pigments than the races of same species living in cold and humid climate. (ii) Tempreture variation is much lesser in aquatic habitat compared to terrestrial habitat (iii) In deep fresh water lakes, there is gradual incrase in tempreture from surface to the bottem (iv) In an aquatic habitat production increases with insing depth. (T =True, F = False)

Correct : D. FTFT

48. ‘X’ is an example of Mutualism and ‘Y’is an example of succession then which is the correct realtionship ?

Correct : C. X = Lichen Y = Xerosere

49. At ‘t’ time, population density is ‘N’ and at t+1 time population density is Nt+1/If Nt+1 - Nt then find out the correct option

Correct : B. B-D+I-E = 0

50. Which of the following is not included as the climax community of general processof succession ?

Correct : B. phytoplanktones

51. How mandy sq. km. area of biosphere is occupied by marine habitat. ?

Correct : D. all of these

52. Whats percentage of earth is occupied by marine habitat ? (1) 71% (2) 4 % (3) 67% (4) 29%

Correct : D. 1

53. What is the composition of soil with high waterlogging capicity ?

Correct : B. Black soil (loan soil)

54. Recently a village was badly affected by jaundice and Dengue,which of the following will decrease due to this ?

Correct : A. No. of person

55. Which is related to the given statement ? In the begining of summer crow and koel lays eggs.

Correct : C. with increase in temperture, gonads become active

56. Population of CBM Village year wise ........ 2000 -----> 1000 2005 -----> 400 2010 -----> 600 2012 -----> 800 what will be the appropri/ate graph for this ?

Correct : B. ‘S’ shaped

57. What is correct for the given statement ? Statement X : Ascaris are permanent parasites Statement Y : Ascaris lives inside the host’s body

Correct : A. Both X&Y are correct

58. Depending on the study of bird population in diffrent areas of North Gujarat for last 10 years (2000 -2010) In which month population of bird is least ?

Correct : B. September

59. Which is the correct option for the given table ?write ‘T’ if the given ecample is correct and ‘F’ for wrong example Information Example Breed only once Bamboo Breeds many time Birds like pigeon, Mammals Small sized but many offsprings Pray Birds less in number but big size offsprings Only deep marine shishes

Correct : B. TTFF

60. Biological control as pest control in agriculture is an example of .....

Correct : A. Predation

61. The turtle of Galapagus island and the goats living there both were eating tender grass, state the relationship.

Correct : A. Interspecific competition

62. carrying capicity of a population is determind by (BHU 2001)

Correct : C. limiting resources

63. Biotic community means.... [CBSC, PMT - 2001]

Correct : C. Group of interrelated population

64. What is true for the members of same species [CBSC, PMT - 2002]

Correct : A. Capicity of inter breeding

65. The name Melvin Calvin is associated with

Correct : C. carbon fixation during photosynthesis

66. Who gave chemical compositions of chlorophyll and carotenoids ?

Correct : C. Willstatter and Stahi

67. The non-polar part of chlorophyll is

Correct : A. phytol

68. The approximate dimension of chlorophyll porphyrin ring is.

Correct : D. 15 Ao square

69. Photosynthesis is most active in

Correct : A. sunlight

70. Intensity of light increase 20 times, rate of photosynthesis will

Correct : D. increase till feed back inhibition.

71. Out of the total light energy that is available for plants is

Correct : A. 50 %

72. One photon is blue light contains....kcal and of red light....kcal

Correct : D. 90 ; 10

73. The most efficient convertor of sunlight is

Correct : C. Sugar cane

74. Cyclic photophosphorylation is confined to

Correct : A. Photosystem I

75. For synthesis of one gram of hexose, the land plant consumes.

Correct : B. Only 1/4 of the CO2 of air

76. For synthesis of one glucose molecule, the number of ATP required are

Correct : B. 18 ATP for C3 cycle and 30 ATP for C4 cycle

77. The volume of O2 librated in photosynthesis has the following ratio to CO2.

Correct : A. O2/CO2 = 1

78. The inhibiting effect of oxygen in C3 plants on photosynthesis is

Correct : C. Warbug’s effect

79. Pick up C4 plant.

Correct : C. Maize

80. It is advantageous to use a water plant to demonstrate photosynthesis other than a land plant because.

Correct : D. O2 bubbles from cut and can be collected over H2O.

81. For chlorophyll formation most important are

Correct : B. Fe++ and Mg++

82. Translocation of sugar in angiosperms occur in form of

Correct : D. sucrose

83. Q10 is

Correct : D. temperature coeffiecient

84. Photorespiration is favoured by

Correct : C. high O2 and low CO2

85. Quinones are

Correct : A. mobile electron carrier

86. During dark reaction, for the fixation of carbon, the three carbon atoms of each molecule of 3 – phosphogylceric acid (PGA) are derived from

Correct : C. RuBP + CO2

87. Calvin cycle utilize for fixation of 3 molecules of CO2

Correct : A. 9 ATP and 6 NADPH2

88. Chloroplast has maximum quantity of....in stroma

Correct : B. RuBP carboxylase

89. If thylakoids are removed and kept in culture medium having CO2 and H2O and exposed to light ; they cannot form hexose sugars as end product because.

Correct : C. CO2 assimilating enzymes absent

90. Which of the following plant is efficient converter of solar energy whose net productivity 2-4 kg/m2/yr or even higher.

Correct : C. sugarcane

91. The number of photons required to release one mole of O2 in photosynthesis called.

Correct : B. quantum requirement

92. Calvin cycle represents one of the following phenomenon.

Correct : D. reductive carboxylation

93. Hill reaction takes place

Correct : D. none above

94. Match the names of scientists given under Column – I with their important contributions given under Column – II ; choose the answer which gives correct combination of the alphabets : Column – I(Scientists) Column – II(Contributions) P. Peter Mitchell (i) Steps of dark reaction of photosynthesis. Q. J.W. Gibbas (ii) Photosynthetic phosphorylation R. Danial Arnon (iii) Concept of free energy S. Melvin Calvin (iv) Chemiosmotic hypothesis (v) Mass flow hypothesis

Correct : A. P = (iv), Q = (iii), R = (ii), S = (i)

95. Match Column – I with given under Column – II ; choose the answer which gives correct combination: Column – I(Scientists) Column – II(Contributions) P. A pigment which absorbs red and far-red light (i) Cytochrome Q. Main pigment involved in transfer of electrons in (ii) PEP carboxylase photosynthesis is R. NADPH2 is generated through.... (iii) Photochrome S. Enzyme which fixes CO2 in C4 plants (iv) Photosystems

Correct : B. P = (iii), Q = (i), R = (iv), S = (iii)

96. The basic feature of typical C4 plants showing ‘Kranz’ anatomy is

Correct : C. the presence of rudimentary chloroplasts in bundle sheath cells and typical chloroplasts with well-formed grana in mesophyll cells

97. A. Six turns of Calvin-cycle result in the production of one molecule of glucose (C6H12O6) R. Three molecules of ribulose 1, 5 – bisphosphate (Ru BP) react with three molecules of carbon dioxide to produce six carbon intermediates.

Correct : C. A is correct but R is wrong

98. Maximum photosynthesis occurs in which of these lights ?

Correct : A. Red

99. In C4 plants showing Kranz anatomy which of the following is correct ?

Correct : A. Bundle sheath cells without grana and mesophyll cells with grana

100. In Blackmann’s ‘Law of Limiting Factors’ the rate of photosynthesis continues to increase with the successive increase in the amounts of

Correct : A. carbon dioxide, light, temperature