Photosynthesis Practice

Front

What is the set of reactions in photosynthesis that do not require light?

Back

Light-independent reactions, also known as the Calvin Cycle, use energy from ATP and NADPH to build high-energy compounds such as sugar.

Front

Where does the oxygen gas we breathe come from during photosynthesis?

Back

The oxygen gas comes from the splitting of water during the light reactions.

Front

What is the ultimate ORIGINAL source of energy for living things?

Back

The Sun.

Front

How does most of the water needed by the plant get into its leaves?

Back

The roots absorb it and then it travels up the stem.

Front

What is the set of reactions in photosynthesis that use energy from light?

Back

Light-dependent reactions produce ATP and NADPH.

Front

What is the role of chlorophyll in photosynthesis?

Back

Chlorophyll is a pigment that absorbs light energy, primarily from the sun, to drive the photosynthesis process.

Front

What are the two main stages of photosynthesis?

Back

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

Front

What is produced during the light-dependent reactions?

Back

ATP and NADPH are produced during the light-dependent reactions.

Front

What is the function of stomata in plants?

Back

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

Front

What is the significance of the Calvin Cycle?

Back

The Calvin Cycle is significant because it converts carbon dioxide and other compounds into glucose, which is used by the plant for energy.