4.7 Transport systems in plants

Question 1

Photosynthesis word equation

Answer 1

carbon dioxide + water —> (sunlight) oxygen + glucose

Question 2

Respiration word equation

Answer 2

oxygen + glucose —> carbon dioxide + water + energy

Question 3

How does water get to the leaf for photosynthesis?

Answer 3

soil —> root hair cells —> xylem —> spongy layer —> palisade cells

Question 4

How does water get leave the plant after respiration? (Osmosis/transpiration)

Answer 4

Palisade cell —> spongy layer —> stoma —> air surrounding leaf

Question 5

How does CO2 enter the leaf for photosynthesis?

Answer 5

air —> stoma —> spongy layer —> palisade cell —> chloroplast

Question 6

How does CO2 leave the leaf after respiration?

Answer 6

Chloroplasts —> palisade cell —> spongy layer —> stoma —> air

Question 7

How does glucose move after being produced in photosynthesis?

Answer 7

Cytoplasm —> palisade cell —> phloem —> rest of plant or stored as starch

Question 8

Describe how minerals get from soil to the plant

Answer 8

Soil —> root hair cells —> xylem —> rest of plant (via active transport)

Question 9

Describe what is meant by translocation

Answer 9

The transport of dissolved material within a plant

Question 10

What are the characteristics of xylem tissues?

Answer 10

• made of living cells
• tissue also has companion cells
• cross-walls are absent
• flow is up and down
• has sieve plates

Question 11

What are the characteristics of phloem tissues?

Answer 11

• cell wall made of lignin
• made of dead cells
• flow is upward
• no cytoplasm
• cell wall made of cellulose