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ZingPath: Cellular Energy: Photosynthesis

Factors Influencing Photosynthesis: Intensity and the Color of Light

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Cellular Energy: Photosynthesis

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Factors Influencing Photosynthesis: Intensity and the Color of Light

Biology

Learning Made Easy

You will determine how the intensity and color of light affect the rate of photosynthesis by conducting experiments.

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Now You Know

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

  • Explain how plants obtain energy.
  • Identify the substances required for and the products of photosynthesis.
  • Explain how the intensity of light affects the rate of photosynthesis.
  • Explain how the color of light affects the rate of photosynthesis.
  • Identify the optimum intensity and color of light for 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 photosynthesis and plants.
Course Biology
Type of Tutorial Experiment
Key Vocabulary 3D, aquarium, aquatic plant