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hammer [34]
2 years ago
6

Imagine that y-axis of each graph describes the rate of photosynthesis. Which of the graphs represents the

Biology
1 answer:
astraxan [27]2 years ago
6 0

Answer:

a. <u>A</u><u> describes the effect of light intensity on photosynthesis.</u>

Explanation:

In plants and other primary producers, photosynthesis is a biological mechanism that is vital to energy production. Energy-containing carbohydrates are derived from light, water and carbon dioxide in the form of glucose molecules.

The waste product oxygen is released as a result. Photosynthesis depends on many variables, including:

  • carbon dioxide concentration,
  • ambient temperature
  • and light intensity

It is a rate-limited reaction. Since photons or particles of light provide the energy required for the reaction, high intensities of light increase the photosynthetic rate. From the graph shown, as <u><em>the intensity increases steadily, so does the rate</em></u>- but at too high of an intensity, it ceases to affect the rate of photosynthesis, which becomes constant or plateaus.

Beyond this point, either the supply of <em>carbon dioxide or the temperature</em> limits the reaction. For instance, at high intensities tissues may even be damaged by high temperatures or heat.

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