Photosynthesis: The Light - Independent Reactions

The video explains the Calvin Cycle, a series of light-independent reactions in photosynthesis that occur in the chloroplasts' stroma. It details the process of carbon fixation, where CO2 is added to RuBP, forming 3PGA. The cycle involves ATP and NADPH to produce G3P, which is used to form glucose. The cycle must repeat multiple times to produce a single glucose molecule, which stores energy captured from sunlight. Glucose is crucial for aerobic respiration, providing ATP for living organisms.

What is the primary location within the chloroplast where the Calvin Cycle occurs?

• Thylakoid membrane

• Nucleus

• Cytoplasm

• Stroma

Which enzyme is crucial for the carbon fixation process in the Calvin Cycle?

• NADP reductase

• Photosystem II

• RuBisCo

• ATP synthase

What is the initial product formed when carbon dioxide is fixed in the Calvin Cycle?

• Glucose

• 3PGA

• G3P

• RuBP

How many times must the Calvin Cycle repeat to produce one glucose molecule?

• Three times

• Four times

• Five times

• Six times

Why is glucose considered the ultimate product of photosynthesis?

• It stores energy captured from sunlight.

• It is used to build cell walls.

• It is a waste product.

• It is used to absorb sunlight.