Transport systems in plants

Question 1

state three plant organs

Answer 1

roots
stems
leaves

Question 2

what is the job of an internal transport system

Answer 2

the movement of substances around the plant ie water minerals and glucose

Question 3

what is the function of palisade mesophyll cells

Answer 3

contains chloroplasts for photosynthesis

Question 4

what is the function of spongy mesophyll

Answer 4

allows gas exchange

Question 5

what is the function of the lower and upper epidermis

Answer 5

transparent protective layer

Question 6

what is the function of guard cells

Answer 6

to open and close stomata

Question 7

what is the function of the stomata

Answer 7

pores for gas exchange

Question 8

what is the function of xylem

Answer 8

transport water and minerals

Question 9

what is the function of phloem

Answer 9

to transport sugar

Question 10

what are the names of the transport systems in plants

Answer 10

xylem and phloem

Question 11

how do xylems work

Answer 11

they transport water and minerals in dead vessels from roots to leaves
xylem also provide support for the plant

Question 12

describe xylem vessels structure

Answer 12

hollow dead tubes
lignin rings add strength to withstand pressure changes as water moves

Question 13

what are phloem

Answer 13

living vessels which transport sugar made from photosynthesis in the leaves to the rest of the plant

Question 14

describe the structure of the phloem

Answer 14

it has sieve plates and sieve tubes
they also have compassion cells

Question 15

what is transpiration

Answer 15

the process of water moving through a plant and it evaporation through the stomata

Question 16

describe the stages of transportation

Answer 16

water is taken up through root hairs
water is transported through dead tube like vessels called xylem
water vapour evaporates through pores called stomata on the underside of the leaf

Question 17

how can you measure the rate of transpiration

Answer 17

bubble potometre
weight potometre

Question 18

what factors affect the rate of transpiration

Answer 18

wind speed
humidity
temperature
surface area of the leaf

Question 19

name the factors which would increase the rate of transpiration due to an increase in the factors

Answer 19

temperature
surface area of the leaf
wind speed

Question 20

name the factor which would cause a decrease in the rate of transpiration due to it increase

Answer 20

humidity