Specialised Plant Cells

Question 1

What are palaside cells?

Answer 1

cells in the upper surface of leaf

do most of the photosynthesis

have lots of chloroplasts for photosynthesis

Question 2

What are root hair cells?

Answer 2

absorb water + minerals from soil

have a large surface area for increased absorption
lots of mitochondria which makes ATP for active transport

Question 3

What are guard cells?

Answer 3

pairs of cells on the underside of leaves

form stomata - gas exchange

open when guard cells are turgid
stomata closes at night when plant is low on water and guard cells become flaccid

they have a thick inner cell wall and thin outer cell wall