Which of the following statements are true of the digestive processes? (Read carefully and select all of the correct statements.)
A)Chewing and the churning of the stomach are the only forms of mechanical digestion.
B)Chemical digestion requires enzymes, each of which is specific for one type of food.
C)An enzyme that requires a pH of 2 usually will not work at a pH of 8.
D)Mechanical digestion is helpful because it increases the surface area of food for enzymes to function efficiently.

Question

Quizplus · Accepted Answer

A) This statement is false. Mechanical digestion also includes the mixing and movement of food in the small intestine.

B) This statement is true. Enzymes are specific for one type of food molecule, such as amylase for breaking down starch.

C) This statement is true. Enzymes have specific optimal pH ranges and may not work properly outside of that range.

D) This statement is true. Mechanical digestion helps to break down food into smaller pieces, providing a larger surface area for enzymes to work on.

Which of the Following Statements Are True of the Digestive