AP BIOLOGY

Detailed explanation-1: -Unlike the light reactions, which take place in the thylakoid membrane, the reactions of the Calvin cycle take place in the stroma (the inner space of chloroplasts). This illustration shows that ATP and NADPH produced in the light reactions are used in the Calvin cycle to make sugar.

Detailed explanation-2: -It is performed in the stroma of the chloroplast. The cytoplasm is the site of aerobic cellular respiration which breaks down the glucose into pyruvic acid and energy is liberated in the form of ATP. The pyruvic acid formed in the cytoplasm moves to the mitochondria and enters the Krebs cycle where energy is produced.

Detailed explanation-3: -Figure 5.14 Light-dependent reactions harness energy from the sun to produce ATP and NADPH. These energy-carrying molecules travel into the stroma where the Calvin cycle reactions take place.

Detailed explanation-4: -The series of biochemical redox reactions which take place in the stroma are collectively called the Calvin cycle or light-independent reactions.

Detailed explanation-5: -These energy-carrying molecules travel into the stroma where the Calvin cycle reactions take place. In plants, carbon dioxide (CO2) enters the chloroplast through the stomata and diffuses into the stroma of the chloroplast-the site of the Calvin cycle reactions where sugar is synthesized.