Tissues and organs in plants

Question 1

epidermal tissues function

Answer 1

cover surfaces + protect them. Often secrete a waxy substance that waterproofs surface of leaf

Question 2

palisade mesophyll function

Answer 2

contains lots chloroplasts which carry out photosynthesis

Question 3

spongy mesophyll function

Answer 3

some chloroplasts but has big air spaces + large surface area for diffusion of gasses

Question 4

XYLEM function

Answer 4

carry water and dissolved mineral ions from roots up to the leaves

Question 5

PHLOEM function

Answer 5

carry dissolved food from the leaves around the plant

Question 6

meristem tissue function

Answer 6

made up of rapidly dividing plant cells that grow and differentiate

Question 7

stomata function

Answer 7

allow gases to move in and out of leaf

Question 8

guard cell function

Answer 8

control opening and closing of the stomata