Multiple Choice
Which part of the reaction energy diagram represents the effect of an enzyme on the activation energy of a chemical reaction?
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7. Energy and Metabolism
Enzymes
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Which characteristics are likely associated with an enzyme isolated from a human stomach where conditions are strongly acidic?
A
An enzyme that functions properly at 70 degrees Fahrenheit and at a neutral pH.
B
An enzyme that functions properly at 98 degrees Fahrenheit and at an acidic pH.
C
An enzyme that functions properly at 98 degrees Fahrenheit and at a neutral pH.
D
An enzyme that functions properly at 70 degrees Fahrenheit and at an acidic pH.
Verified step by step guidance1
Understand that enzymes are proteins that catalyze biochemical reactions and their activity is influenced by temperature and pH.
Recognize that the human stomach has a strongly acidic environment, typically with a pH around 1.5 to 3.5, due to the presence of gastric acid.
Identify that the normal human body temperature is approximately 98.6 degrees Fahrenheit (37 degrees Celsius), which is the optimal temperature for most human enzymes.
Consider that an enzyme isolated from the stomach would be adapted to function in acidic conditions and at body temperature.
Conclude that the characteristics of an enzyme from the human stomach would include functioning properly at 98 degrees Fahrenheit and at an acidic pH.
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