transport in plants

Question 1

xylem transports….

Answer 1

water and minerals

Question 2

phloem transports

Answer 2

sucrose and amino acids

Question 3

xylem provides..

Answer 3

support for the plant (lignin)

Question 4

Pathway taken by water in a plant

Answer 4

soil —> root hair cells on the surface of a root —> root cortex cells in root —> xylem through the stem —> mesophyll cells in the leaf

Question 5

transpiration

Answer 5

• evaporation in spongy mesophyll cells to form water vapor
• loss of water vapor by diffusion in the stomata

Question 6

factors affecting rate of transpiration

Answer 6

• Temperature: increase in temperature = increase in evaporation= increase in rate of transpiration
• Increase in wind speed = increase in evaporation = increase in rate of transpiration

Question 7

wilting

Answer 7

condition in which plant’s leaves droop because they loose their firmness due to loss of water.
happens when the rate of transpiration is greater than the rate of water uptake

Question 8

translocation meaning

Answer 8

the movement of sucrose and amino acids through phloem tissue