BIO 2.2 Photosynthesis

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose, using carbon dioxide and water.

Front

What is the main pigment involved in photosynthesis?

Back

The main pigment involved in photosynthesis is chlorophyll, which absorbs light energy.

Front

What are the two main stages of photosynthesis?

Back

The two main stages of photosynthesis are the light reactions and the Calvin cycle (light-independent reactions).

Front

Where does photosynthesis occur in plant cells?

Back

Photosynthesis occurs in the chloroplasts of plant cells.

Front

What is the role of chlorophyll in photosynthesis?

Back

Chlorophyll absorbs light energy, primarily in the blue and red wavelengths, and uses it to convert carbon dioxide and water into glucose and oxygen.

Front

What are the products of the light reactions of photosynthesis?

Back

The products of the light reactions are ATP, NADPH, and oxygen.

Front

Which color of light is not absorbed by chlorophyll?

Back

Green light is not absorbed by chlorophyll; it is reflected, which is why plants appear green.

Front

What is the function of ATP in photosynthesis?

Back

ATP provides the energy needed for the Calvin cycle to synthesize glucose from carbon dioxide.

Front

What is the function of NADPH in photosynthesis?

Back

NADPH acts as a reducing agent, providing electrons and hydrogen ions for the reduction of carbon dioxide in the Calvin cycle.

Front

What is the Calvin cycle?

Back

The Calvin cycle is the set of light-independent reactions in photosynthesis that convert carbon dioxide into glucose using ATP and NADPH.