Energy and Matter

What is one of the most important differences between plants and animals?

• Plants don't need water, but animals do.

• Animals can make their own food using sunlight.

• Plants do not move, but animals can.

• Plants can produce their own food using sunlight.

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The green structures found in plant cells that capture sunlight and use it to produce food for the cells are called ...

• chloroplasts.

• cytoplasm.

• vacuoles.

• ribosomes.

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The green pigment in plant cells that helps to trap the energy of sunlight is ...

• chlorophyll.

• nucleus.

• chloroplast.

• melanin.

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What do plants need to perform photosynthesis?

• oxygen

• water

• carbon dioxide

• sunlight

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What are the products of cellular respiration?

• Water

• Glucose

• Oxygen

• Carbon Dioxide

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The sugar or food molecule produced during photosynthesis is called ...

• carbon dioxide.

• glucose.

• oxygen.

• ATP.

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How do carbon dioxide and oxygen move into and out of a plant?

• Through the roots.

• Through large holes in the stem.

• Through tiny openings in the leaves called stomata.

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In which organelle does cellular respiration occur?

• chloroplasts

• ribosomes

• mitochondria

• vacuoles

What are the reactants of photosynthesis?

• Glucose and Water
• Glucose and Oxygen
• Carbon Dioxide and Water
• Carbon Dioxide and Glucose

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What would stop photosynthesis from occuring?

• a very sunny day
• not enough carbon dioxide
• having too much water
• having excess ATP

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