Which enzyme is most effective at pH 2.5?

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Questions About Gastrointestinal System Questions

Question 1 of 5

Which enzyme is most effective at pH 2.5?

Correct Answer: B

Rationale: Pepsin functions optimally at pH 2-3 in the stomach, making B correct.

Question 2 of 5

The pancreas is an organ connected to the digestive tract of humans by a duct (tube) through which digestive enzymes flow. Why are these enzymes important to the digestive system?

Correct Answer: C

Rationale: Pancreatic enzymes break down carbohydrates, proteins, and fats into absorbable molecules, making C the correct answer.

Question 3 of 5

Which components of the human diet contain the greatest amounts of sugars and starches?

Correct Answer: B

Rationale: Fruits and vegetables are rich in sugars and starches, making B the correct answer.

Question 4 of 5

In gastric bypass surgery, the stomach is reduced to hold 1 ounce of food, instead of 3 pints. This surgery would drastically impact one's

Correct Answer: B

Rationale: Reducing stomach capacity directly affects digestion, making B the correct answer.

Question 5 of 5

Structure X represents a

Correct Answer: C

Rationale: Structure X in skin is a sweat gland, making C the correct answer.

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