leaf structure

Question 1

upper epidermis

Answer 1

found at the top of the leaf and is a thin and transparent layer to permit light to go in

Question 2

wax cuticle

Answer 2

protective waxy layer on top of leaves to prevent evaporation of water.

Question 3

palisade layer

Answer 3

cylindrical shapes packed with chloroplasts found at the top of a cell to maximize photosynthesis (by absorbing more light).

Question 4

spongy mesophyll

Answer 4

contains large air spaces between cells to permit diffusion between cells (palisade cells and stomata). light intensity must be high for it to reach here

Question 5

lower epidermis

Answer 5

contains guard cells and stomata

Question 6

guard cell

Answer 6

absorbs or loses water to open (flaccid) or close (turgid) the stomata to allow carbon dioxide in and out.

Question 7

stomata

Answer 7

location of gas exchange in a plant. opens in the day and closes in the night.

Question 8

vascular bundle

Answer 8

contains the xylem and phloem vessels.

Question 9

xylem

Answer 9

found in the middle of the phloem and transports water around th eplant

Question 10

phloem vessels

Answer 10

surround the xylem vessels and transports nutrients around the plant.