Transport In Plants

Question 1

What two types of tissue does the vascular bundle contain?

Answer 1

Xylem and phloem

Question 2

What does the xylem carry?

Answer 2

Water and ions

Question 3

What does the phloem carry?

Answer 3

Sucrose and amino acids

Question 4

Where does the xylem, transport materials to/from?

Answer 4

From roots to leaves

Question 5

What are the thin areas of the xylem cells called

Answer 5

Lignin and cellulose

Question 6

Describe the uptake of water

Answer 6

Water travels across cortex of root
Enters xylem in stele in root
Travels up xylem in root into xylem first in vascular bundles of stem
Into xylem in vines in leaves 
Transferred to mesophyll cells of leaf

Question 7

Three functions of plant roots

Answer 7

Anchor plant into soil
Absorb water from soil
Absorb minerals from soil

Question 8

What minerals do plants need

Answer 8

Nitrogen
Magnesium
Phosphorus
Potassium

Question 9

Where are palisade cells located

Answer 9

Upper part of leaf

Question 10

What carries food to growing parts and storage organs?

Answer 10

Phloem

Question 11

What carries minerals to leaves?

Answer 11

Xylem

Question 12

Which way does the flow go in the xylem

Answer 12

Upwards from roots to leaves

Question 13

Which way does flow go in phloem?

Answer 13

Up AND down

Question 14

Out of the phloem and xylem, which has impermeable cell walls?

Answer 14

Xylem

Question 15

Is it the phloem or xylem made of dead cells?

Answer 15

Xylem

Question 16

Is it the phloem or xylem that has thick cell walls

Answer 16

Xylem

Question 17

Define transpiration

Answer 17

Loss of water vapour by evaporation of water at surfaces of mesophyll cells followed by loss of water vapour through stoma

Question 18

What can affect rate of transpiration?

Answer 18

Air humidity— less humidify, more transpiration
Temperature— higher temp, more transpiration
Wind speed— more wind, more transpiration
Light intensity— bright light increases transpiration

Question 19

What is root pressure?

Answer 19

Created by osmosis carrying water across root to vascular bundle of stem. Pressure forces water into xylem & pushes it along root towards stem

Question 20

Capillarity?

Answer 20

Movement of fluids upwards through very narrow tubes

Question 21

Transpiration pull?

Answer 21

Forces created by transpiration where water is drawn up to leaf to replace lost water

Question 22

In a plant, what is formed by a group of xylem vessels

Answer 22

Tissue