Chapter 9.2 Introduction

What role do pigments play in the process of photosynthesis?

• They absorb sunlight and convert it into chemical energy.

• They release oxygen into the atmosphere.

• They transport water from the roots to the leaves.

• They protect the plant from herbivores.

What do electron carrier molecules do in photosynthesis?

• They store energy in the form of ATP.

• They carry electrons from one molecule to another.

• They produce glucose for the plant.

• They absorb carbon dioxide from the atmosphere.

Which of the following are reactants in the process of photosynthesis?

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Which of the following are products of photosynthesis?

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What is sunlight composed of according to the text?

• A single wavelength of light

• A mixture of different wavelengths of light

• Only the visible spectrum

• Only ultraviolet light

What are wavelengths that are visible to our eyes known as?

• Ultraviolet spectrum

• Infrared spectrum

• Visible spectrum

• Gamma spectrum

What do photosynthetic organisms use to capture the energy in sunlight?

• Chloroplasts

• Chlorophyll

• Pigments

• Carbon dioxide

What is the principal pigment of green plants?

• Carotenoids

• Hemoglobin

• Chlorophyll

• Anthocyanins

Why does chlorophyll appear green?

• It absorbs light well in the green region of the spectrum.

• It reflects green light.

• It only absorbs ultraviolet light.

• It emits green light as a byproduct.

Answer explanation

Chlorophyll appears green because it reflects green light.

Where does photosynthesis take place inside a plant cell?

• Mitochondria

• Chloroplasts

• Nucleus

• Ribosomes

Answer explanation

Photosynthesis takes place inside a plant cell in the chloroplasts, where the process of converting light energy into chemical energy occurs.