plant transport

Question 1

how is a plant adapted to transport substances around itself?

Answer 1

xylem- water and mineral ions

phloem- products of photosynthesis (glucose is transported as sucrose)

Question 2

Xylem

Answer 2

transports water and mineral salts from the roots to the other parts of the plant
delivers a substance to make plants turgid
transports minerals

Question 3

Phloem

Answer 3

transports the products of photosynthesis, consists of living cells

Question 4

How does water enter the root of a plant?

Answer 4

osmosis

Question 5

How will minerals enter a plant?

Answer 5

active transport at root hair cells

Question 6

What is osmosis?

Answer 6

the net movement of water molecules from a high concentration of water to a low concentration of water across a selectively permeable membrane

occurs in animals and plants

Question 7

What is transportation?

Answer 7

evaporation of water vapour from the surface of a plant

Question 8

How are transportation and osmosis linked?

Answer 8

Both occur in plants
Both are to do with water
Both movement of water

Question 9

Root hair cells absorb water by

Answer 9

osmosis

Question 10

how does humididty effect transpiration

Answer 10

Diffusion of water vapour out of the leaf slows down if the leaf is already surrounded by moist air

transpiration is therefore slower when humid

Question 11

how does wind effect transpiration

Answer 11

Water vapour is removed quickly by air movement, speeding up diffusion of more water vapour out of the leaf
therefore faster when windy

Question 12

how does temperature effect transpiration

Answer 12

Transpiration is faster in higher temperatures Evaporation and diffusion are faster at higher temperatures

Question 13

how does light intensity effect the rate of transpiration

Answer 13

In bright light transpiration increases The stomata (openings in the leaf) open wider to allow more carbon dioxide into the leaf for photosynthesis

Question 14

what happens in transportation?

Answer 14

1) evaporation (from stomata) of water vapour
2) More water to be transported up the xylem
3) water is taken in by the roots evaporation

Question 15

Transpiration experiment

Answer 15

put a stem into a tube full of water to see if evaporation takes place.

if evaporation happens then the water gets sucked up by the xylem (by osmosis) and causes the air bubble to be moved along.

Question 16

Results of the transpiration experiment

Answer 16

As time increases, so does the distance in which the bubble has moved, transpiration was increased therefore there was more water movement in the plant