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 autotrophs?

Back

Autotrophs are organisms that produce their own food from inorganic substances, using light or chemical energy. Examples include plants and some bacteria.

Front

What are heterotrophs?

Back

Heterotrophs are organisms that cannot produce their own food and must consume other organisms for energy. Examples include animals and fungi.

Front

In which organelle does photosynthesis occur?

Back

Photosynthesis occurs in the chloroplasts of plant cells.

Front

What is the role of chlorophyll in photosynthesis?

Back

Chlorophyll is a green pigment found in chloroplasts that absorbs sunlight, providing the energy needed for photosynthesis.

Front

What is the main source of energy for photosynthesis?

Back

The main source of energy for photosynthesis is sunlight.

Front

What are the two main stages of photosynthesis?

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

Front

What is the equation for photosynthesis?

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The equation for photosynthesis is: 6CO2 + 6H2O + light energy → C6H12O6 + 6O2.

Front

What is the significance of photosynthesis to life on Earth?

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Photosynthesis is crucial for life on Earth as it produces oxygen and organic compounds that serve as food for heterotrophs.

Front

What are stomata?

Back

Stomata are small openings on the surface of leaves that allow for gas exchange, enabling carbon dioxide to enter and oxygen to exit.