10BD 8-2: Overview of Photosynthesis

What is the primary function of chlorophyll in photosynthesis?

• To absorb water

• To absorb light energy

• To produce glucose

• To release oxygen

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NGSS.HS-LS1-5

Which statement is correct of light-dependent reactions and light-independent reactions?

• Light-dependent reactions occur across the thylakoid membrane and are responsible for the release of oxygen gas. Light-independent reactions occur in the stroma and are responsible for the formation of sugars.

• Light-dependent reactions occur across the thylakoid membrane and are responsible for the formation of sugars. Light-independent reactions occur in the stroma and are responsible for the release of oxygen gas.

• Light-independent reactions occur across the thylakoid membrane and are responsible for the release of oxygen gas. Light-dependent reactions occur in the stroma and are responsible for the release of oxygen gas.

• Light-independent reactions occur across the thylakoid membrane and are responsible for the formation of sugars. Light-dependent reactions occur in the stroma and are responsible for the release of oxygen gas.

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NGSS.HS-LS1-5

Which of the following is the correct balanced equation for photosynthesis?

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NGSS.HS-LS1-5

NGSS.HS-LS2-5

Which part of the electromagnetic spectrum drives photosynthesis?

• infrared

• radio waves

• ultraviolet

• visible spectrum

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NGSS.HS-LS1-5

Explain how light energy is converted into chemical energy during photosynthesis.

• Light energy is absorbed by chlorophyll and used to split water molecules, releasing oxygen and storing energy in ATP and NADPH.

• Light energy directly converts carbon dioxide into glucose.

• Light energy is stored in the roots of the plant.

• Light energy is used to heat the plant, which then produces glucose.

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NGSS.HS-LS1-5

Describe the structure of a chloroplast and its role in photosynthesis.

• Chloroplasts are oval-shaped and contain chlorophyll, which captures light energy for photosynthesis.

• Chloroplasts are round and store glucose produced during photosynthesis.

• Chloroplasts are square and contain enzymes for cellular respiration.

• Chloroplasts are triangular and release carbon dioxide.

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NGSS.HS-LS1-5

NGSS.HS-LS2-5

Which statement about the pigment chlorophyll is correct?

• Chlorophyll a captures light energy at a higher frequency, while chlorophyll b captures light at a lower frequency and sends it to chlorophyll a for use in photosynthesis.

• Chlorophyll a captures light energy at a lower frequency, while chlorophyll b captures light energy at a higher frequency and sends it to chlorophyll a for use in photosynthesis.

• Chlorophyll b captures light energy at a higher frequency, while chlorophyll a captures light energy at a lower frequency and sends it to chlorophyll b for use in photosynthesis.

• Chlorophyll b captures light energy at a lower frequency, while chlorophyll a captures light energy at a higher frequency and sends it to chlorophyll b for use in photosynthesis.

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NGSS.HS-LS1-5

Which pigments are primarily responsible for absorbing light in photosynthesis?

• Carotenoids

• Chlorophyll a and b

• Anthocyanins

• Xanthophylls

Which colors do chlorophyll absorb?

• green and blue

• red and green

• yellow and green

• blue and red

Tags

NGSS.HS-LS1-5

What occurs during the light-dependent reactions of photosynthesis?

• ATP and NADPH are produced using light energy.

• Glucose is synthesized from carbon dioxide.

• Oxygen is absorbed and carbon dioxide is released.

• Water is converted into glucose.

Tags

NGSS.HS-LS1-5