Unit Two: Plants

Question 1

What are plant leaves made of?

Answer 1

Mesophyll tissue-this is where most of the photosynthesis occurs
Xylem and phloem-they transport things like water, mineral ions and sucrose around the plant
Epidermal tissue-this covers the whole plant

Question 2

What is the equation for photosynthesis?

Answer 2

Carbon dioxide + water

sunlight
———–>
chlorophyll

glucose + oxygen

Question 3

What does photosynthesis produce?

What does it use to produce it?

Answer 3

Glucose

Sunlight

Question 4

Where does photosynthesis occur?

Answer 4

Inside the chloroplasts

Question 5

How does photosynthesis occur in the chloroplasts?

Answer 5

Chloroplasts contain a green substance called chlorophyll, which absorbs sunlight and uses its energy to convert carbon dioxide and water into glucose

Oxygen is also produced as a by-product

Question 6

How do you control the amount of carbon dioxide during photosynthesis?

Answer 6

Dissolve different amounts of sodium hydrogencarbonate in the water, which gives off carbon dioxide

Question 7

How do you control temperature during photosynthesis?

Answer 7

Using a water bath

Question 8

Name five ways in which plants use glucose.

Answer 8

Respiration, making cell walls, making proteins, stored in seeds and stored as starch