18.9 and 14.7

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 are the main products of photosynthesis?

Back

The main products of photosynthesis are glucose (sugar) and oxygen.

Front

What role does carbon dioxide play in photosynthesis?

Back

Carbon dioxide is a key reactant in photosynthesis; it is used during the light-independent reactions to produce glucose.

Front

What happens to photosynthesis if there is no light?

Back

If there is no light, photosynthesis cannot occur because light energy is required to drive the process.

Front

What are stomata?

Back

Stomata are small openings on the surface of leaves that allow for gas exchange, including the intake of carbon dioxide and the release of oxygen.

Front

How does water affect photosynthesis?

Back

Water is essential for photosynthesis; it is used in the light-dependent reactions and is a source of electrons and protons.

Front

What is the significance of chlorophyll in photosynthesis?

Back

Chlorophyll is the green pigment in plants that captures light energy, which is necessary for photosynthesis.

Front

What are light-dependent reactions?

Back

Light-dependent reactions are the first stage of photosynthesis, occurring in the thylakoid membranes, where light energy is converted into chemical energy (ATP and NADPH).

Front

What are light-independent reactions (Calvin Cycle)?

Back

Light-independent reactions, also known as the Calvin Cycle, occur in the stroma of chloroplasts and use ATP and NADPH to convert carbon dioxide into glucose.

Front

What is the role of oxygen in photosynthesis?

Back

Oxygen is a byproduct of photosynthesis, released into the atmosphere during the light-dependent reactions.