5. Transport Systems - Plants

Question 1

A leaf is made up of a collection of

Answer 1

specialised tissues

Question 2

The pores on leaves that allow gas exchange are called

Answer 2

Stomata

Question 3

Stomata are mainly found on the

Answer 3

lower surface of the leaf

Question 4

The opening and closing of stomata are controlled by

Answer 4

Guard Cells

Question 5

Leaf cells that are closely packed together and contain lots of chloroplasts are called

Answer 5

Palisade Mesophyll Cells

Question 6

A layer that contains many air spaces is called the

Answer 6

Spongy Mesophyll

Question 7

In plants, water is transported upwards in

Answer 7

Xylem Vessels

Question 8

In plants, water and minerals are transported upwards in

Answer 8

Xylem Vessels

Question 9

Xylem vessels are

Answer 9

hollow tubes (made of dead cells and rings of lignin)

Question 10

When guard cells become Turgid,

Answer 10

stomata can open

Question 11

When guard cells lose water and become plasmolysed,

Answer 11

stomata can close.

Question 12

The process of water moving through a plant and evaporating via stomata is known as

Answer 12

Transpiration

Question 13

Transpiration rate can be affected by

Answer 13

windspeed, humidity and temperature

Question 14

A potometer is used to measure

Answer 14

Transpiration rate (by showing how much water is being taken in by the plant to replace losses)

Question 15

Sugar is transported around plants in

Answer 15

Phloem Vessels

Question 16

Phloem is made up of living cells called

Answer 16

companion cells (and sieve tubes/sieve plates)