971. The first action spectrum was obtained by___________?
A. T.W.Englemam
B. Malleus
C. T.W.Inws
D. W.Stapes

972. Which of the light is mainly absorbed by the plants?
A. Orange
B. Red
C. Green
D. Both A and B

973. First Actions spectrum was obtained by using__________?
A. Algae
B. Fungi
C. Bacteria
D. Spirogyra

974. Chlorophyll is insoluble in_____________?
A. Carbon tetrachloride
B. Alcohol
C. Organic solvents
D. Water

975. Of the following, which one causes higher production of food in green plants?
A. Blue
B. Orange
C. Red
D. Violet

976. Which of the following statement about the head of a chlorophyll molecule is incorrect?
A. It is a porphyrin ring or tetrapyrrole ring structure
B. It is flat, square and light absorbing
C. Composed of carbon and nitrogen atoms with Magnesium as central metal ion, which is coordinated with nitrogen.
D. It is hydrophobic

977. Photosynthesis carried out by terrestrial plants is _________ of total photosynthesis?
A. 1-2%
B. 5%
C. 10%
D. 20%

978. Molecular formula of chlorophyll ‘a’ molecule is___________?
A. C55H72O5N4Mg
B. C55H70O6N4Mg
C. C50H72O6N4Mg
D. C55H70O5N4Mg

979. Stomata cover only ______________ of leaf surface?
A. 0.03 – 0.04%
B. 10%
C. 1-2 %
D. 50%

980. Which of the following pigment is Blue- green in colour?
A. Chlorophyll a
B. Chlorophyll b.
C. Chlorophyll c
D. Chlorophyll d.

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