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Massachusetts Comprehensive Assessment System



MCAS QUESTION OF THE DAY:

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2018 February Biology, Biology - High School
Download PDF Document Question 33 - Multiple-Choice

Reporting Category: Biochemistry and Cell Biology
Standard: 1.3 - Explain the role of enzymes as catalysts that lower the activation energy of biochemical reactions. Identify factors, such as pH and temperature, that have an effect on enzymes.

 
Students investigated the effect of acid rain on photosynthesis. Several plants were given water with a pH of 4 each day for two months. The results showed that the plants had a reduced rate of photosynthesis.

How did the acidic water most likely reduce the plants’ rate of photosynthesis?

 
 
 

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Last Updated: May 24, 2018
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