specialised plant cells

Question 1

function of root hair cell

Answer 1

absorb water and minerals in soil

Question 2

hair like projections

Answer 2

• large SA
• increases uptake

Question 3

large amounts of mitochondria

Answer 3

provide energy for active transport

Question 4

function of xylem

Answer 4

• transports water and minerals up the plant
• unidirectional

Question 5

xylem tissue

Answer 5

• consists of xylem vessels and parenchyma cells
• vessels made out of dead cells
• dc elongated,reinforced and waterproofed with deposits of lignin

Question 6

function of phloem

Answer 6

• carry sugars up and down the plant
• bidirectional

Question 7

phloem tissue

Answer 7

• made up of sieve tubes and companion cells
• substances move via sieve plates (when sieve tubes and their ends line up)
• companion cells lie next to sieve tubes = stay alive