Bioenergetics Quiz | Bioenergetics Short Questions & Answers

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Questions
41 Stomata cover only _________ of leaf surface.
A 0.03 - 0.04%
B 10%
C 1-2 %
D 50%

Answer: 1-2 %
42 Photosynthesis carried out by terrestrial plants is ____ of total photosynthesis.
A 1-2%
B 5%
C 10%
D 20%

Answer: 10%
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43 Of the following, which one causes higher production of food in green plants
A Blue
B Orange
C Red
D Violet

Answer: Red
44 First Actions spectrum was obtained by using
A Algae
B Fungi
C Bacteria
D Spirogyra

Answer: Spirogyra
45 The first action spectrum was obtained by
A T.W.Englemam
B Malleus
C T.W.Inws
D W.Stapes

Answer: T.W.Englemam
46 The percentage of light absorbed by the leaf
A 20%
B 15%
C 10%
D 1%

Answer: 1%
47 PS I has chlorophyll a molecule which absorbs maximum light of _____ nm.
A 600
B 650
C 680
D 700

Answer: 700
48 Air contains ______ % of CO2
A 0.02-0.03
B 0.03-0.04
C 0.04-0.05
D 0.05-0.06

Answer: 0.03-0.04
49 About _______ % of photosynthesis is carried by terrestrial plants, while rest occurs in ocean, lakes, and ponds.
A 10%
B 20%
C 30%
D 40%

Answer: 10%
50 Carotenoids perform protective function in
A Animals
B Plants
C Both of these
D None of these

Answer: Both of these
51 Molecular formula of chlorophyll b is
A C55 H10 O4 N6 Mg
B C55 H70 O6 N5 Mg
C C55 H71 O6 N4 Mg
D C55 H70 O6 N4 Mg

Answer: C55 H70 O6 N5 Mg
52 Bacteriochlorophylls does not include
A Chlorophyll e
B Chlorophyll d
C Chlorophyll a
D Chlorophyll c

Answer: Chlorophyll a
53 The most important photosynthetic pigment
A Chlorophyll a
B Chlorophyll b
C Xanthophyll
D Carotenes

Answer: Chlorophyll a
54 The chlorophyll molecule is embedded in the core of thylakoid membrane which acts as
A Hydrophilic
B Hydrophobic
C Both of these
D None of these

Answer: Hydrophobic
55 Deficiency of ________ causes yellowing in plants
A Magnesium
B Iron
C Chlorine
D Oxygen

Answer: Magnesium
56 Chlorophylls mainly absorb ____ wavelengths
A Orange - blue
B Violet - red
C Yellow - orange
D Orange - red.

Answer: Orange - red.
57 Xanthophylls are ______ pigments
A Yellow
B Red
C Orange
D Green

Answer: Yellow
58 Chlorophylls are found embedded in the ______ membranes
A Stroma
B Grana
C Thylakoid
D Intergrana

Answer: Thylakoid
59 The dense fluid filled region in the chloroplast is
A Grana
B Stroma
C Thylakoid
D None of these

Answer: Stroma
60 In all plants the major sites of phosynthesis are
A Leaves respire and utilize O2 and release CO2.
B Stems
C Roots
D Branches

Answer: Leaves respire and utilize O2 and release CO2.

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