Question

An enzyme known as amylase is found in the saliva of humans. This enzyme helps to begin the process of digesting starch molecules in the foods we eat. Which of these BEST describes how enzymes like amylase help in the process of digestion?
A) Amylase acts as a buffer to keep the pH of foods at a consistent level.
B) Amylase breaks down the food molecules directly by forming powerful acids.
C) Amylase is a catalyst that speeds up the chemical process of breaking down food molecules.
D) Amylase contains the DNA molecules necessary to assemble the proteins needed for digestion.

Answer 1

It is C) Amylase is a catalyst that speeds up the chemical process of breaking down food molecules.

Answer 2

Answer:

C) Amylase is a catalyst that speeds up the chemical process of breaking down food molecules.

Explanation:

Amylases catalyze hydrolysis (breaking down) of starch structure into smaller particles (maltose) to facilitate digestion.

The amylase found in saliva is called ptyalin and it initiates the process of mechanical digestion in the human body, breaking starch in the mouth.

There is also pancreatic amylase, which reduces starch, glycogen and other polysaccharides to even smaller particles.