A(n) ________ is a substance that helps in the chemical digestion of food.
Options:
Epiglottis
Enzyme
Gallbladder
Peristalsis
Enzyme
The correct answer is Enzyme.
The correct answer is "enzyme". Enzymes are substances that help in the chemical digestion of food. They are proteins that accelerate the rate of chemical reactions in the body, specifically in breaking down large molecules into simpler forms. In the context of digestion, enzymes play a crucial role in breaking down carbohydrates, proteins, and fats into smaller molecules that can be absorbed by the body.
To arrive at this answer, you could have eliminated the other options by understanding their functions.
1. Epiglottis: The epiglottis is a flap-like structure located at the base of the tongue. Its main function is to prevent food and liquid from entering the windpipe (trachea) and lungs when swallowing.
2. Gallbladder: The gallbladder is an organ that stores bile, a substance produced by the liver, and releases it into the small intestine to help with the digestion of fats.
3. Peristalsis: Peristalsis is the muscular contraction and relaxation of the digestive tract that helps move food along the digestive system. While it aids in digestion, it does not directly participate in the chemical breakdown of food.
By process of elimination, you would have determined that the correct answer is "enzyme" as it directly contributes to the chemical digestion of food.