Photosynthesis and Plant Energy Quiz

What is photosynthesis?

• A process where plants use sunlight to make sugars from carbon dioxide and water.

• A process where animals eat plants for energy.

• A process where plants absorb water from the soil.

• A process where plants release oxygen at night.

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Which organisms make their own food using photosynthesis?

• Plants

• Dogs

• Humans

• Fish

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What do plants use to make their own food?

• Water, nutrients, and carbon dioxide gas

• Meat and water

• Sunlight and soil only

• Oxygen and sugar

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What are chloroplasts?

• Small structures inside plant cells

• A type of animal cell

• A kind of food

• A type of root

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What pigment do chloroplasts contain?

• Chlorophyll

• Hemoglobin

• Melanin

• Carotene

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Why do most plant leaves look green?

• Because of the presence of chlorophyll

• Because they are always wet

• Because they are covered in dust

• Because they have no sunlight

How do humans and animals get their energy?

• By eating food

• By making their own food

• By absorbing sunlight

• By breathing in carbon dioxide

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Why do plants need sunlight?

• To get energy for photosynthesis

• To absorb water

• To take in carbon dioxide

• To release oxygen

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Which statement best explains why photosynthesis is important for plants?

• It allows them to make their own food

• It helps them absorb water from the soil

• It lets them take in oxygen from the air

• It helps them grow taller

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How do plants get energy from the Sun?

• By absorbing sunlight with chlorophyll in their leaves

• By taking in sunlight through their roots

• By storing sunlight in their stems

• By reflecting sunlight off their flowers

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