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 is the primary source of energy for photosynthesis?

Back

The primary source of energy for photosynthesis is sunlight.

Front

What are the two main products of photosynthesis?

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The two main products of photosynthesis are glucose and oxygen.

Front

What is the role of chlorophyll in photosynthesis?

Back

Chlorophyll is a green pigment found in plants that absorbs light energy, primarily from the sun, which is essential for photosynthesis.

Front

What is the chemical equation for photosynthesis?

Back

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

Front

What are light reactions in photosynthesis?

Back

Light reactions are the first stage of photosynthesis, occurring in the thylakoid membranes of chloroplasts, where sunlight is converted into chemical energy in the form of ATP and NADPH.

Front

What is the Calvin cycle?

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The Calvin cycle is the second stage of photosynthesis, occurring in the stroma of chloroplasts, where ATP and NADPH produced in the light reactions are used to convert carbon dioxide into glucose.

Front

How do plants obtain carbon dioxide for photosynthesis?

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

Front

What is the significance of oxygen produced during photosynthesis?

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Oxygen produced during photosynthesis is released into the atmosphere and is essential for the survival of aerobic organisms, including humans.

Front

What is the relationship between photosynthesis and cellular respiration?

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Photosynthesis and cellular respiration are interconnected processes; photosynthesis converts light energy into chemical energy (glucose), while cellular respiration converts glucose back into usable energy (ATP) for cells.