Photosynthesis year 10

What is the pigment in chloroplasts that performs photosynthesis?

• Chlorosynthesis
• Chlorophyll
• ADP
• Electron Transport

Which gas is removed from the atmosphere during photosynthesis?

• hydrogen
• oxygen
• nitrogen
• carbon dioxide

What are the products of photosynthesis?

• water and carbon dioxide
• oxygen and glucose
• oxygen and carbon dioxide
• oxygen and water

How would light intensity generally affect the rate of photosynthesis?

• Increases the rate, up to a point
• Increases the rate
• Decreases the rate
• No relationship to the rate

How would the concentration of CO₂ in water affect photosynthesis?

• The higher the CO₂, the greater the rate
• The higher the CO₂, the lower the rate
• CO₂ concentration doesn't affect photosynthesis
• a greater rate of photosynthesis causes higher CO₂ concentrations 

What do we call something that will affect the rate of photosynthesis?

• Light intensity

• Limiting factor

• Carbon dioxide concentration

• Control factor

During photosynthesis, the energy from the sun is used to split water molecules into hydrogen and oxygen.

• True

• False

Which of the following statements best describes the term photosynthesis?

• When plants absorb the energy from the sun.

• How plants reproduce.

• The process by which plants make their own food.

• The process by which animals make their own food.

Which of the following is needed for the process of photosynthesis?

• Water

• Oxygen

• Starch

• Carbon dioxide

Chlorophyll is:

• The substance that makes plants green.

• Found inside the chloroplast cells.

• Used to absorb energy from the sun.

• All of the above.