PHOYOSYNTHESIS

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 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, sunlight is captured by chlorophyll, and energy is used to split water molecules, releasing oxygen and producing 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

What is the overall equation for photosynthesis?

Back

6 CO2 + 6 H2O + sunlight energy → 6 O2 + C6H12O6.

Front

What is the role of chlorophyll in photosynthesis?

Back

Chlorophyll is the green pigment in plants that absorbs light energy, primarily in the blue and red wavelengths, which is essential for the light-dependent reactions.

Front

What is the ultimate source of energy for photosynthesis?

Back

The ultimate source of energy for photosynthesis is the sun.

Front

What are the products of photosynthesis?

Back

The products of photosynthesis are glucose (C6H12O6) and oxygen (O2).

Front

What is a waste product of the light-dependent reactions?

Back

Oxygen is a waste product of the light-dependent reactions of photosynthesis.

Front

How do plants obtain carbon dioxide for photosynthesis?

Back

Plants obtain carbon dioxide from the atmosphere through small openings in their leaves called stomata.