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?

Which of the following are products of photosynthesis?

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.