Chapter 10 Quiz 2

The diagram shows the section of a leaf.

What is cell type P?

• epidermal cell

• guard cell

• palisade mesophyll cell

• spongy mesophyll cell

The diagram shows the section of a leaf.

What is cell type Q?

• epidermal cell

• guard cell

• palisade mesophyll cell

• spongy mesophyll cell

The diagram shows the section of a leaf.

What is cell type R?

• epidermal cell

• guard cell

• palisade mesophyll cell

• spongy mesophyll cell

The diagram shows the section of a leaf.

What is cell type S?

• epidermal cell

• guard cell

• palisade mesophyll cell

• spongy mesophyll cell

The diagram shows the section of a leaf.

Which of the following types of cells are loosely packed, forming many large air spaces among them?

• P

• Q

• R

• S

The diagram shows the section of a leaf.

Which of the following types of cells can control the opening and closing of stomata, and thus regulate the rate of gas exchange?

• P

• Q

• R

• S

The graph shows the rate of carbon dioxide uptake of a plant under different light intensities.

At 10 units of light intensity, the rate of photosynthesis is 0 mg cm^-2 h^-1.

• True

• False

The graph shows the rate of carbon dioxide uptake of a plant under different light intensities.

At 10 units of light intensity, there is no net exchange of gases.

• True

• False

The graph shows the rate of carbon dioxide uptake of a plant under different light intensities.

At 50 units of light intensity, there is a net release of oxygen.

• True

• False

The graph shows the rate of carbon dioxide uptake of a plant under different light intensities.

At 80 units of light intensity, light intensity is the limiting factor for photosynthesis.

• True

• False