In the Section "Investigating Life: Does Natural Selection Maintain Cystic

question 67

Multiple Choice

In the section "Investigating Life: Does Natural Selection Maintain Cystic Fibrosis?",how does the bacteria that causes cholera,Vibrio cholera,trigger potentially life threatening diarrhea?

• A)Cholera toxin stimulates CFTR leading to increased osmosis of water released from the body.
• B)Cholera toxin inhibits CFTR leading to increased osmosis of water into the intestines.
• C)Cholera toxin stimulates CFTR leading to decreased osmosis of water from the body.
• D)Cholera toxin inhibits CFTR leading to decreased osmosis of water into the intestines.
• E)Cholera toxin may produce CFTR in a person with cystic fibrosis.

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