12.5 Photosynthesis

Front

What is the primary purpose of photosynthesis in plants?

Back

To convert light energy into chemical energy.

Front

What is the overall equation for photosynthesis?

Back

@@6 ext{CO}_2 + 6 ext{H}_2 ext{O} + ext{light energy} ightarrow ext{C}_6 ext{H}_{12} ext{O}_6 + 6 ext{O}_2@@

Front

What is the main product of photosynthesis that is used as an energy source by plants?

Back

Glucose.

Front

What happens to the rate of photosynthesis if a plant is enclosed in an air-proof bottle?

Back

It gradually slows down to zero because CO₂ is used up.

Front

How can the volume of oxygen gas accumulated in a tube be increased during photosynthesis?

Back

By moving the light source closer to the beaker.

Front

What are the two main stages of photosynthesis?

Back

Light-dependent reactions and light-independent reactions (Calvin cycle).

Front

What role does chlorophyll play in photosynthesis?

Back

Chlorophyll absorbs light energy, primarily from the sun.

Front

What is the significance of carbon dioxide in photosynthesis?

Back

Carbon dioxide is a raw material used to produce glucose.

Front

What is produced as a byproduct of photosynthesis?

Back

Oxygen.

Front

What factors can affect the rate of photosynthesis?

Back

Light intensity, carbon dioxide concentration, temperature, and water availability.