Factors Affecting Photosynthesis

How does temperature affect photosynthesis?

• Increases the rate at which enzymes work

• Gives the plant energy to perform photosynthesis

• Stops certain enzymes that interfere with photosynthesis working

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NGSS.MS-LS1-6

The rate of photosynthesis is affected by all of the following except

• the amount of salt.

• the availability of water.

• light intensity.

• temperature (enzymes).

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NGSS.MS-LS1-6

Which conclusion best matches the trends shown on the graph?

• Bean plants produce more ATP than corn plants.

• Corn plants require more oxygen than bean plants.

• Corn plants release more carbon dioxide than bean plants.

• Corn plants produce sugars at a faster rate than bean plants.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

How can greenhouses increase the rate of photosynthesis?

• Controlling and trapping heat to increase photosynthesis

• Stopping rainfall affecting plant growth

• Surrounding plants in the colour green makes them more likely to photosynthesise

• Plants are only given what they need instead of just taking everything they can find

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

A student is collecting the gas given off from a plant in bright sunlight at a temperature of 27°C. The gas being collected is probably ________.

• oxygen

• carbon dioxide

• ATP

• glucose

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

If carbon dioxide is completely removed from a plant’s environment, what would you expect to happen to the plant’s production of high-energy sugars?

• Sugar production will likely increase.

• Sugars will not be produced.

• The rate of sugar production will decrease .

• Fewer sugars will be produced at first, but then the plant will recover.

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NGSS.MS-LS1-5

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Which lettered graph represents the effect of carbon dioxide gas on photosynthetic rate?

• A

• B

• C

• D

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NGSS.MS-LS1-6

Which factor would not increase the production of glucose by photosynthesis in plants?

• freezing temperatures

• extra rainfall

• increased carbon dioxide levels

• increased sunlight exposure

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NGSS.MS-LS1-6

Which of the following is a limiting factor in photosynthesis?

• Light intensity

• Soil type

• Plant age

• Leaf color

Tags

NGSS.MS-LS1-6

What is the primary role of chlorophyll in photosynthesis?

• Absorb light energy

• Transport water

• Store glucose

• Release oxygen

Tags

NGSS.MS-LS1-6