Transport Systems - Plants

Question 1

Where does water enter a plant?

Answer 1

Roots

Question 2

Name the vessel that transports water up a plant?

Answer 2

Xylem

Question 3

In which cells does most photosynthesis take place?

Answer 3

Pallisade mesophyll cells

Question 4

How would you know from their structure that the pallisade mesophyll cells carry out most of photosynthesis?

Answer 4

They contain a large number of chloroplasts

Question 5

Where does gas exchange take place in a plant?

Answer 5

stomata

Question 6

What controls the opening and closing of the stomata?

Answer 6

guard cells

Question 7

Which gas moves into the leaf?

Answer 7

carbon dioxide

Question 8

Which gas moves out of the leaf?

Answer 8

oxygen

Question 9

Name the rings that strengthen the xylem vessels to cope with the water pressure.

Answer 9

rings of lignin

Question 10

Name the vessels that transport glucose up and down the plant?

Answer 10

phloem

Question 11

Name the process of water moving through a plant and evaporating from the stomata?

Answer 11

transpiration

Question 12

Will increased wind speed increase or decrease the transpiration rate?

Answer 12

increase

Question 13

Will increased humidity increase or decrease the transpiration rate?

Answer 13

decrease

Question 14

Will increased temperature increase or decrease the transpiration rate?

Answer 14

increase

Question 15

Will increased surface area increase or decrease the transpiration rate?

Answer 15

increase

Question 16

What piece of equipment can be used to measure the rate of transpiration?

Answer 16

potometer

Question 17

Name the cells that provide energy for the phloem to function.

Answer 17

companion cells

Question 18

Name the part of the phloem that separates one phloem cell from another.

Answer 18

sieve plates