Photosynthesis Light absorption quiz

What is the first stage of photosynthesis called?

• Dark reactions

• Light reactions

• Calvin cycle

• Krebs cycle

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What essential molecules are produced during the light reactions?

• Proteins

• Lipids

• Carbohydrates

• Energy molecules

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Which pigment absorbs sunlight in the chloroplast?

• Carotene

• Xanthophyll

• Chlorophyll

• Anthocyanin

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What is the main purpose of the light reactions?

• To produce glucose

• To generate chemical energy

• To absorb carbon dioxide

• To release nitrogen

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What do chlorophyll molecules in the thylakoid membranes absorb?

• Oxygen

• Sunlight

• Water

• Carbon dioxide

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What is generated as a result of water splitting in photolysis?

• Oxigen and Electrons

• Light and Glucose

• Carbon dioxide

• Proteins and Lipids

Why is oxygen release important in photolysis?

• It is essential for life respiration

• It forms glucose

• It absorbs light

• It breaks down proteins

What is the role of oxygen released during photosynthesis?

• It is used for cellular respiration.

• It is used for photosynthesis.

• It is used for digestion.

• It is used for fermentation.

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What process uses the oxygen released during photosynthesis?

• Cellular respiration

• Photosynthesis

• Fermentation

• Glycolysis

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What is the significance of oxygen in metabolic processes?

• It provides energy for cellular respiration.

• It absorbs energy from the sun.

• It stores energy in cells.

• It releases energy from water.

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