PLant

Question 1

Waxy cuticle

Answer 1

helps to reduce water loss by evaporation and is protective layer at the top of the leaf

Question 2

upper epidermis

Answer 2

very thin and transparent to let light in for the palisade mesophyll

Question 3

palisade mesophyll

Answer 3

contains a lot of chloroplasts so that photosynthesis can happen rapidly

Question 4

spongy mesophyll

Answer 4

have lots of air spaces to allow gases to diffuse in and out faster (increases surface area to volume ratio)

Question 5

lower epidermis

Answer 5

contains guar cells and stomata

Question 6

guard cells

Answer 6

control stomata - opens and closes it by absorbing or losing water

Question 7

stomata

Answer 7

gas exchange and loss of water by evaporation

morning = open
night = close

Question 8

why do plants need magnesium

Answer 8

required for chlorophyll production.

deficiency: yellow leaves

Question 9

why do plants need nitrate

Answer 9

required to produce amino acids

deficiency: stunted growth and yellow leaves