6163 The primary photosynthetic pigment in plants is A chlor

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The primary photosynthetic pigment in plants is A) chlorophyll a. B) chlorophyll b. C) retinal pigment and accessory pigment. D) carotene. E) None of the above The balanced equation for the generation of sugar from sunlight, water, and CO_2 is A) 6 CO_2 + 6 H_2O rightarrow C_6H_12O_6 + O_2. B) 6 CO_2 + 12 H_2O rightarrow C_6H_12O_6 + 6 O_2 + 6 H_2O. C) CO_2 + 6 H_2O rightarrow 12 O_2 + C_6 H_12 O_24. D) 12 CO_2 + 12 H_2O rightarrow 2 C_6 H_12 O_6 + 2 O_2. E) None of the above The oxidizing agent in the primary photoevent is A) pheophytin. B) ferredoxin. C) oxaloacetate. D) acetyl CoA. E) sugar.

Solution

61. A) chlorophyll a

Chlorophyll A is the green pigment that absorbs blue and red light and is involved in PSI and PSII. This is generally found in plants algae and Cyanobacteria.

62. E) None of the above

The correct equation would be :

6CO₂ + 6 H₂O --------------(light)--------> C₆H₁₂O₆ + 6O₂

63. A) pheophytin

Pheophytin is a compound that serves as the first electron carrier intermediate in the electron transfer pathway of Photosystem II (PS II) in plants.