plants

Question 1

what does the waxy cuticle do?

Answer 1

A protection layer that reduces the water loss from the leaf while still allowing light through

Question 2

atery

Answer 2

Walls are made of elastic tissue and muscle
thick walls to withstand high pressure
elastic tissue allows walls to strech
narrow lumen to maintain high blood pressure
lumen is circular

Question 3

Capillary

Answer 3

walls are only 1 cell
lumen is the sane size as the diamiter of a red blood cell

Question 4

vein

Answer 4

walls are made of elastic tissue and muscle
thin walls as blood pressure is low
lumen is irregular

Question 5

funtion of artery

Answer 5

carries blood AWAY from the heart
Carries OXYGENATED blood
Carries blood at HIGH pressure

Question 6

Function of capillary

Answer 6

Exchange of nutrients from plasma to CELLS
Exchange of waste products FROM cells TO PLASMA

Question 7

function of vein

Answer 7

Carries blood TOWARDS the HEART
Carries DEOXYGENATED BLOOD

Question 8

Plant tissues

Answer 8

epidermal tissue -covers whole plant
plaisade mesophyll -the part of the leaf where most photo synthesis happens

Question 9

xylem

Answer 9

dead cells
hollow cells strengthend by lignin
joined end to end
water and mineral ions
transpiration

Question 10

Phloem

Answer 10

Living cells
cytoplasm and cell sap
elongated columns
dissolved sugars