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 role of chlorophyll in photosynthesis?

Back

Chlorophyll is a green pigment found in the chloroplasts of plants that absorbs light energy, primarily from the blue and red wavelengths, to drive the process of photosynthesis.

Front

What are the main products of photosynthesis?

Back

The main products of photosynthesis are glucose (a sugar) and oxygen.

Front

What is the function of the stoma in a plant?

Back

The stoma (plural: stomata) are small openings on the surface of leaves that allow for gas exchange; they enable carbon dioxide to enter the leaf and oxygen to exit.

Front

What do the guard cells do?

Back

Guard cells surround each stoma and control its opening and closing, regulating gas exchange and water loss in the plant.

Front

What is the Xylem responsible for?

Back

The Xylem is a type of tissue in plants that transports water and minerals from the roots to the rest of the plant.

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What is the Phloem responsible for?

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The Phloem is a type of tissue in plants that transports glucose and other organic nutrients from the leaves to other parts of the plant.

Front

Why do plants need sunlight for photosynthesis?

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Plants need sunlight as it provides the energy required to convert carbon dioxide and water into glucose and oxygen during photosynthesis.

Front

What is the significance of photosynthesis for life on Earth?

Back

Photosynthesis is crucial for life on Earth as it produces oxygen, which is essential for the survival of most living organisms, and it forms the base of the food chain.

Front

What color light is least effective for photosynthesis?

Back

Green light is least effective for photosynthesis because chlorophyll reflects green light rather than absorbing it.