Which of the following is necessary for digestion of food?

The correct answer is C. Enzyme.

Enzymes are proteins that speed up chemical reactions in the body. They are essential for digestion, as they break down food into smaller molecules that can be absorbed by the body.

Air is not necessary for digestion, as it does not participate in any chemical reactions. Water is necessary for digestion, as it helps to dissolve food and transport enzymes and other digestive juices. Minerals are not necessary for digestion, as they do not participate in any chemical reactions.

Here is a more detailed explanation of each option:

• Air is not necessary for digestion, as it does not participate in any chemical reactions. The only role that air plays in digestion is to help us breathe, which provides oxygen to the body. Oxygen is necessary for many chemical reactions in the body, including digestion. However, the oxygen that we breathe in does not directly participate in digestion.
• Water is necessary for digestion, as it helps to dissolve food and transport enzymes and other digestive juices. Enzymes are proteins that speed up chemical reactions in the body. They are essential for digestion, as they break down food into smaller molecules that can be absorbed by the body. Digestive juices are substances that help to break down food. They are produced by the stomach, pancreas, and small intestine. Water helps to dissolve food and transport these digestive juices to the areas of the body where they are needed.
• Enzyme is a protein that speeds up chemical reactions in the body. They are essential for digestion, as they break down food into smaller molecules that can be absorbed by the body. There are many different types of enzymes, each of which is responsible for breaking down a specific type of food.
• Mineral is a substance that is essential for the body’s growth and function. Minerals are found in food and water, and they are absorbed by the body through the digestive system. Minerals are important for many different bodily functions, including digestion, bone health, and muscle function.