NUTRITION
THE HUMAN BODY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of these indicates a physical change that occurs during the process of digestion?
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the addition of acids to create a ball of food
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the secretion of pepsin to change proteins to peptides
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the breakdown of food substances by digestive juices
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the squeezing of food through the intestines.
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Explanation:
Detailed explanation-1: -What is an example of a physical change that occurs during digestion? Digestive enzymes in the stomach break down proteins into amino acids.
Detailed explanation-2: -Physical digestion is the mechanical breakdown of food. Physical digestion in the mouth includes chewing, which masticates, or grinds, food. Chemical digestion in the mouth is done by salivary amylase which is the enzyme in the saliva that breaks down complex carbohydrates into simple sugar.
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