Photosynthesis

Which substance is not required by plants for photosynthesis?

• Carbon dioxide

• Oxygen

• Water

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Why do plants carry out photosynthesis?

• To make energy

• To make oxygen

• To make sugar

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

What is the role of chlorophyll in photosynthesis?

• To produce sugar

• To trap heat energy

• To trap light energy

Tags

NGSS.HS-LS1-5

Which energy conversion occurs as a result of photosynthesis?

• Chemical energy to heat energy

• Heat energy to light energy

• Light energy to chemical energy

Tags

NGSS.HS-LS1-5

Which word equation correctly describes the process of photosynthesis?

• carbon dioxide + oxygen ---> sugar + water

• carbon dioxide + water ---> sugar + oxygen

• sugar + oxygen ---> carbon dioxide + water

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

Which of the following is a limiting factor of photosynthesis?

• Availability of carbon dioxide

• Availability of oxygen

• Availability of sugar

What are the two major limiting factors of photosynthesis?

• Carbon dioxide concentration and temperature

• Temperature and oxygen concentration

• Oxygen concentration and carbon dioxide concentration

If the light intensity is low, what effect does increasing the light intensity have on the rate of photosynthesis?

• Decreases the rate

• Increases the rate

• No effect on the rate

Tags

NGSS.HS-LS1-5

Which limiting factor of photosynthesis is likely to have the greatest effect on plants growing in an open field on a hot summer day?

• Carbon dioxide availability

• Light intensity

• Temperature

Which factor controls the reactions of photosynthesis reactions?

• Chlorophyll

• Enzymes

• Light