Energy and Photosynthesis Quiz Bio Lecture 7

What is the primary source of energy for all life on Earth?

• Chemical energy

• Solar energy

• Wind energy

• Nuclear energy

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What are organisms called that produce their own food through photosynthesis?

• Heterotrophs

• Decomposers

• Autotrophs

• Consumers

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What is the by-product of photosynthesis that is essential for cellular respiration?

• Carbon dioxide

• Nitrogen

• Oxygen gas (O2)

• Methane

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What do heterotrophs rely on for their energy needs?

• Solar energy

• Chemical energy from organic molecules

• Wind energy

• Geothermal energy

Where does photosynthesis primarily take place in flowering plants?

• Roots

• Green portions of plants

• Flowers

• Seeds

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What are the raw materials for photosynthesis?

• Oxygen and glucose

• Carbon dioxide and water

• Nitrogen and water

• Oxygen and water

What is the function of chloroplasts in flowering plants?

• Store nutrients

• Carry out photosynthesis

• Absorb water

• Transport minerals

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What are the small openings through which carbon dioxide enters a leaf called?

• Veins

• Stomata

• Chloroplasts

• Thylakoids

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What is the semifluid interior of a chloroplast called?

• Grana

• Thylakoid

• Stroma

• Mesophyll

What combines with CO₂ in the stroma to form sugar?

• Oxygen

• Nitrogen

• Hydrogen

• Water (H₂O)

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