MEDICAL
RECTUM AND ANUS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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During chemical digestion
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only changes in size and shape occur
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food is chemically changed by acid, bases and enzymes
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -During the process of digestion, the food is broken down into smaller molecules. The salivary glands present in our mouth help in the breakdown of the food. In this process, there is a formation of a new substance. Therefore, it is considered to be a chemical change.
Detailed explanation-2: -Food digestion is a chemical change. In this process, large macromolecules are broken down into smaller molecules. It is done by the enzymes found in the stomach and intestines.
Detailed explanation-3: -Chemical digestion, through a process called hydrolysis, uses water and digestive enzymes to break down the complex molecules. Digestive enzymes speed up the hydrolysis process, which is otherwise very slow.
There is 1 question to complete.