The leaf structure and functions.

1. The process by which plants release water vapor into the air through the stomata is:

• translocation

• stomata

• transpiration

• phloem

Tags

NGSS.MS-LS2-3

2. The skin of the leaf is called the:

• cuticle

• spongy layer

• mesophyll

• epidermis

3. These are responsible for opening and closing the stoma.

• palisade mesophyll

• guard cells

• air space

• epidermis

4. In the center of the leaf, there are 2 kinds of food-making cells. What are they?

• palisade and spongy

• mesophyll and cuticle

• palisade and xylem

• xylem and phloem

Tags

NGSS.MS-LS1-2

5. The ____________ moves manufactured food out of the leaf.

• xylem

• air space

• phloem

• stoma

6. This structure protects the leaf from moisture loss.

• guard cell

• cuticle

• stoma

• air space

7. The process of Photosynthesis takes place in this structure.

• vascular bundle

• air space

• spongy layer

• palisade layer

Tags

NGSS.MS-LS1-6

8. The exchange of gases occur at the __________.

• stoma

• air space

• vascular bundle

• mesophyll

Tags

NGSS.MS-LS1-6

9. Chlorophyll is contained in these parts.

• cuticle and epidermis

• xylem and phloem cells

• spongy and palisade cells

• air space and stoma

10. All of the following are functions of the leaf EXCEPT:

• Absorption

• Respiration

• Transpiration

• Photosynthesize

Tags

NGSS.MS-LS1-6