AP BIOLOGY

PHOTOSYNTHESIS

C 4 PHOTOSYNTHESIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
During light phase of photosynthesis ____ is oxidized and ____ is reduced.
A
CO2 and Water
B
Water and CO2
C
Water and NADP
D
NADPH2 and CO2
Explanation: 

Detailed explanation-1: -Thus, during the light phase of photosynthesis, water is oxidized and NADP is reduced. Oxidation: In any reaction, if oxygen is added or hydrogen is removed or any element loses the electron then such type of reaction is known as an oxidation reaction.

Detailed explanation-2: -During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons.

Detailed explanation-3: -NAD and NADP uses NADP is the reducing agent produced by the light reactions of photosynthesis and is consumed in the Calvin cycle of photosynthesis and used in many other anabolic reactions in both plants and animals.

Detailed explanation-4: -The light reaction takes place in the thylakoid discs. There, water (H20) is oxidized, and oxygen (O2) is released. The electrons freed up from water are transfered to ATP and NADPH.

Detailed explanation-5: -Thus the dark reactions represent a redox pathway. NADPH is oxidized to NADP+ and CO2 is reduced to glucose.

There is 1 question to complete.