Photosynthesis

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy, usually from the sun, 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 and oxygen.

Front

What role does chlorophyll play in photosynthesis?

Back

Chlorophyll is a pigment found in plants that absorbs light energy, primarily from the blue and red wavelengths, which is essential for photosynthesis.

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

What happens during the light-dependent reactions?

Back

During the light-dependent reactions, light energy is captured and converted into chemical energy in the form of ATP and NADPH.

Front

What is the Calvin cycle?

Back

The Calvin cycle is the light-independent reaction of photosynthesis where ATP and NADPH produced in the light-dependent reactions are used to convert carbon dioxide into glucose.

Front

How does carbon dioxide concentration affect plant growth?

Back

Plants grown with more carbon dioxide tend to grow faster and larger due to increased availability of a key reactant for photosynthesis.

Front

True or False: Plants perform both photosynthesis and cellular respiration.

Back

True. Plants perform photosynthesis to produce glucose and oxygen, and cellular respiration to convert glucose into usable energy.

Front

What is a pigment?

Back

A pigment is a molecule that absorbs specific wavelengths of light, giving it a particular color; chlorophyll is an example of a pigment.

Front

What is the significance of oxygen produced during photosynthesis?

Back

Oxygen produced during photosynthesis is essential for the survival of aerobic organisms, including humans, as it is used in cellular respiration.