Assertion : Cyclis pathway of photosythesis first apperead in some eubacterial species. Reason Oxygen started accumulating in the atmosphere after the nonj-cyclic pathway of photosynthesis evolved.A. If both assertion and reason are true and the reason is a correct explanation of the assertionB. If both assertion and reason are true but reason is not a correct explanation of the assertion.C.D. If the assertion is true but reason is false.

Assertion : Cyclis pathway of photosythesis first apperead in some eub

1.	Assertion : Cyclis pathway of photosythesis first apperead in some eubacterial species. Reason Oxygen started accumulating in the atmosphere after the nonj-cyclic pathway of photosynthesis evolved.A. If both assertion and reason are true and the reason is a correct explanation of the assertionB. If both assertion and reason are true but reason is not a correct explanation of the assertion.C.D. If the assertion is true but reason is false.
Answer» Correct Answer - B

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The role of chlorophyll in photosynthesis isA. Absorption of `CO_(2)`B. Absorpiton of lightC. Absorption of light and photochemical decomposition of waterD. Absorption of water
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Photorepiration producesA. sugar but not ATPB. ATP but no sugarC. Both ATP and sugarD. Neither ATP nor sugar
Study the following statements. (i) Red light falling in the ragne of wavelength 660-760nm is the most effective for photosynthesis. (ii) Green light falling in the range of wavelength 500-580 nm is the least effective for photosynthesis. (iii) Chl a,chl b carotenses and xanthophylls are soluble in organic solvents. (iv) Phycobilins (phycocyanin, allophycocynin and phycoerythrin) are soluble in water Which of the above statements is/are incorrect?A. ii and iiiB. iii and ivC. i onlyD. None of these

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