Photosynthesis

Question 1

What is the word equation for photosynthesis?

Answer 1

Carbon Dioxide+Water
=Glucose+Oxygen

CO2+H2O= C6H12O6+O2

Light energy and chlorophyll is on the arrow from water to glucose

Question 2

What is produced by photosynthesis?

Answer 2

Glucose

Question 3

What is photosynthesis?

Answer 3

Process by which food is produced in plants

Question 4

Where does photosynthesis happen?

Answer 4

Chloroplasts

Question 5

What do chloroplasts contain?

Answer 5

Chlorophyll which absorbs sunlight and uses its energy to convert carbon dioxide and water into glucose and oxygen

Question 6

What is a limiting factor?

Answer 6

Factor that stops photosynthesis from happening the fastest rate

Question 7

What are the limiting factors?

Answer 7

• Temperature
• Carbon Dioxide
• Sunlight
• Water

Question 8

What experiment can you do to work out the ideal conditions for photosynthesis in a certain plant?

Answer 8

• Take a water plant like Canadian pondweed
• Measure amount of oxygen produced in a given time to show how fast photosynthesis is happening
• Test out all the limiting factors and see which produces the slowest photosynthesis
• Count bubbles of oxygen being produced

Question 9

How can you make ideal conditions for plants?

Answer 9

Greenhouse

Question 10

How do greenhouses provide ideal conditions?

Answer 10

• Trap suns heat so temperature always perfect, can use a heater (if too cold) or shades (if too hot)
• Supply artificial light in the night
• Paraffin heater heats greenhouse and makes carbon dioxide
• Enclosed so no pests and diseases
• Add fertilisers to the plants