Practice Quiz

MCAT Biology

Category - Biology

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Some bacteria live in hot springs. Their cells contain enzymes that function best at temperatures of 70°C or higher. At a temperature of 50°C, how will the enzymes in these bacterial cells most likely be affected?
  1. The enzymes will be destroyed by lysosomes.
  2. The enzymes will lose their bond structure and fall apart.
  3. The enzymes will require less energy to function than
    at 70°C.
  4. The enzymes will not increase the rate of reactions as much as they would at 70°C.
Explanation
Answer: D - The enzymes will not increase the rate of reactions as much as they would at 70°C.
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