unit 2 - Plant transport systems

Question 1

what is the main function of the waxy cuticle

Answer 1

reduce water loss

Question 2

what is the main function of the epidermis

Answer 2

layer of cells which allow light to pass through

Question 3

what is the main function of the palisade mesophyll

Answer 3

closely packed plant cells with many chloroplasts for photosynthesis

Question 4

what is the main function of the spongy mesophyll

Answer 4

loosely packed and irregular shaped plant cells create moist air space

Question 5

what is the main function of the stoma

Answer 5

allows gases to diffuse in and out of cell

Question 6

what is the main function of the vein

Answer 6

contains phloem and xylem

Question 7

what do xylem vessels do?

Answer 7

transport water or minerals up the plant

Question 8

name two features of the xylem

Answer 8

lignified + dead

Question 9

name 3 features off the phloem

Answer 9

living, has sieve plates, has companion cells

Question 10

what is transpiration

Answer 10

the evaporation of water through the stomata

Question 11

give 4 factors which affect rate of transpiration

Answer 11

temperature, wind speed, number of stomata, humididty