PPT's 1 + 2

Question 1

Define photosynthesis

Answer 1

• the process by which green plants use sunlight to produce sugars from carbon dioxide and water
• the leaves are the main site of photosynthesis in the vine
• the sugars produced in photosynthesis are used for vine growth and metabolism

Question 2

Describe transpiration

Answer 2

• water vapour diffuses out of the stomata (tiny pores) on the underside of vine leaves
• the loss of water from the cells in the leaf causes water to be pulled upwards from the soil, through the roots and the above-ground parts of the vine

Question 3

What are a vine’s requirements?

Answer 3

• CO2
• water
• nutrients
• heat
• sunlight

produce O2

Question 3

What are a vine’s requirements?

Answer 3

• CO2
• water
• nutrients
• heat
• sunlight

produce O2