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Factors Affecting Photosynthesis

Explore the key environmental factors that influence the rate of photosynthesis in plants, including light intensity, carbon dioxide concentration, and temperature.

Grade 9 Science BiologyFactors Affecting Photosynthesis
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Multiple ChoiceFill in the BlanksShort AnswerTrue / FalseCustom

Standards

HS-LS2-5

Topics

BiologyPhotosynthesisScienceGrade 9
7 sections · Free to use · Printable
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Factors Affecting Photosynthesis

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Date:

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Read each question carefully and answer to the best of your ability. For multiple-choice questions, circle the letter corresponding to the correct answer. For short answer questions, provide concise and accurate responses.

1. Which of the following is NOT a primary factor affecting the rate of photosynthesis?

a

Light intensity

b

Oxygen concentration

c

Carbon dioxide concentration

d

Temperature

2. At what point does increasing light intensity no longer increase the rate of photosynthesis?

a

When CO2 becomes limiting

b

When water becomes limiting

c

When temperature becomes too high

d

All of the above

3. Photosynthesis is the process by which green plants use  , water, and sunlight to create their own food.

4. The optimal temperature for most photosynthetic enzymes is typically between   and   degrees Celsius.

5. Explain how increasing carbon dioxide concentration affects the rate of photosynthesis, assuming other factors are not limiting.

6. Describe the concept of a 'limiting factor' in photosynthesis and provide an example.

7. Increasing temperature indefinitely will always increase the rate of photosynthesis.

T

True

F

False

8. Observe the diagram below, which illustrates the process of photosynthesis. Based on the diagram and your knowledge, identify the inputs and outputs of the process.

Photosynthesis Overview Diagram

Inputs:  

Outputs: