Plants

Ch 7 Nutrition in Plants

Multiple Select

Select the condition(s) required for photosynthesis.

• sunlight

• carbon dioxide

• oxygen

• suitable temperature

• chlorophyll

Open Ended

What is chlorophyll?

Multiple Choice

What is part X?

• stalk

• lamina

• vein

• petiole

Multiple Select

Select the statement(s) that are true about the lamina of the leaf.

• broad to provide large surface area for maximal absorption of light

• holds leaf in position for maximal absorption of light

• thin to allow light to reach all mesophyll cells

• thin to provide short diffusion distance for gases to reach all mesophyll cells

Multiple Select

Select the cell(s) that contain chloroplasts.

• epidermal cells

• palisade mesophyll cells

• spongy mesophyll cells

• guard cells

• phloem cells

Multiple Choice

The image shows the section of a leaf.

In which cell is the rate of photosynthesis the highest?

• 1

• 2

• 3

• 4

Multiple Choice

Which adaptation is correctly matched to its function?

• Waxy cuticle: allow maximum refraction and absorption of light.

• Air spaces in the leaf: rapid diffusion of carbon dioxide and oxygen into and out of mesophyll cells.

• Stomata: allows entry of water for photosynthesis

• Waxy cuticle: provides large surface area for maximal absorption of light

Multiple Choice

In which order does carbon dioxide in the air enter the leaf?

• stomata > intercellular air spaces > mesophyll cells

• mesophyll cells > intercellular air spaces > stomata

• intercellular air spaces > mesophyll cells > stomata

• stomata > mesophyll cells > intercellular air spaces

Multiple Choice

When is carbon dioxide absorbed and when is it released by an ecosystem, such as a tropical rainforest?

• daylight: absorbs

  darkness: absorbs

• daylight: absorbs

  darkness: releases

• daylight: releases

  darkness: absorbs

• daylight: releases

  darkness: releases

Multiple Choice

Plants use carbon dioxide and water to carry out photosynthesis.

Which description is correct?

• Carbon dioxide and water enters the roots and move through the xylem to each leaf.

• Carbon dioxide and water enter a leaf through stomata and diffuse into leaf cells.

• Carbon dioxide enters a leaf through stomata and water enters a leaf from the xylem.

• Carbon dioxide enters a leaf through stomata and water enters a leaf from the phloem.

Multiple Select

Select statements that describe what could happen to glucose formed from photosynthesis in the leaf?

• used for respiration

• forms cellulose cell wall

• stored as glycogen

• stored as starch

• converted to sucrose and transported to other parts of the plant via phloem.