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ZingPath: Cellular Energy: Photosynthesis

Factors Influencing Photosynthesis: Carbon Dioxide

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Cellular Energy: Photosynthesis

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Factors Influencing Photosynthesis: Carbon Dioxide

Biology

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You will determine how carbon dioxide affects the rate of photosynthesis by conducting an experiment.

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Now You Know

After completing this tutorial, you will be able to complete the following:

  • Define photosynthesis as the capture of light energy followed by a series of chemical reactions by which plants convert light energy into chemical energy.
  • Identify the substances required for photosynthesis.
  • Identify the products of photosynthesis.
  • Explain how carbon dioxide affects the rate of photosynthesis.
  • Identify the fastest rate of photosynthesis when shown a graph.

Everything You'll Have Covered

Photosynthesis is a series of chemical reactions by which plants obtain their energy

In this process, sunlight is absorbed by chlorophyll inside the chloroplasts of plant cells. In order for photosynthesis to take place, the plant must take in carbon dioxide and water. As a result of photosynthesis, carbohydrates and oxygen are produced.

The rate at which a plant conducts photosynthesis is not always the same. Various factors influence the rate at which photosynthesis takes place, including the amount of carbon dioxide present, the amount of water, the chlorophyll concentration, and light intensity. These factors can increase the rate of photosynthesis. However, the rate of photosynthesis cannot increase indefinitely. Once a certain level is reached, the rate of photosynthesis remains constant.

Tutorial Details

Approximate Time 20 Minutes
Pre-requisite Concepts Students should be familiar with carbon dioxide, oxygen, photosynthesis, and plants.
Course Biology
Type of Tutorial Experiment
Key Vocabulary carbohydrates, carbon dioxide, chlorophyll