Energy and Photosynthesis

Front

What is the process of 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 are the two main stages of photosynthesis?

Back

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

Front

Where do light-dependent reactions occur?

Back

Light-dependent reactions occur in the thylakoid membranes of chloroplasts.

Front

What is the role of chlorophyll in photosynthesis?

Back

Chlorophyll is a pigment in chloroplasts that absorbs light energy, primarily in the blue and red wavelengths, and plays a crucial role in converting solar energy into chemical energy.

Front

What are the products of light-dependent reactions?

Back

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

Front

What is the Calvin cycle?

Back

The Calvin cycle, also known as the light-independent reactions, is the process in which ATP and NADPH produced in the light-dependent reactions are used to convert carbon dioxide into glucose.

Front

What is ATP and why is it important?

Back

ATP (adenosine triphosphate) is a principal energy carrier in living organisms, used to store and release energy for various cellular processes.

Front

What is the significance of NADPH in photosynthesis?

Back

NADPH is an electron carrier that provides the reducing power needed for the Calvin cycle to convert carbon dioxide into glucose.

Front

What is the role of water in photosynthesis?

Back

Water is a reactant in photosynthesis that provides electrons and protons, and its splitting during light-dependent reactions releases oxygen as a byproduct.

Front

How does carbon dioxide enter the plant?

Back

Carbon dioxide enters the plant through small openings called stomata, located on the leaves.