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.

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What are the main products of photosynthesis?

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The main products of photosynthesis are glucose and oxygen.

Front

What role does chlorophyll play in photosynthesis?

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Chlorophyll is a pigment found in plants that absorbs light energy, primarily from the blue and red wavelengths, and reflects green light, which is why most plants appear green.

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What is the difference between autotrophs and heterotrophs?

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Autotrophs are organisms that can produce their own food from sunlight or inorganic substances, while heterotrophs obtain their food by consuming other living or once-living organisms.

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What is ATP and why is it important in photosynthesis?

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ATP (adenosine triphosphate) is a molecule that stores and transfers energy within cells. It is important in photosynthesis as it provides the energy needed for the synthesis of glucose.

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What is the role of sunlight in photosynthesis?

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Sunlight provides the energy required for photosynthesis, enabling plants to convert carbon dioxide and water into glucose and oxygen.

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What are the reactants of photosynthesis?

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The reactants of photosynthesis are carbon dioxide (CO2) and water (H2O).

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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.

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What is the significance of oxygen produced during photosynthesis?

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

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What is the light-dependent reaction in photosynthesis?

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