NURSING EXAM QUESTIONS
NUTRITION
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -Digestion is a form of catabolism or breaking down of substances that involves two separate processes: mechanical digestion and chemical digestion. Mechanical digestion involves physically breaking down food substances into smaller particles to more efficiently undergo chemical digestion.
Detailed explanation-2: -The process of chewing is not an example of chemical digestion. Chewing is an example of mechanical digestion, which is the physical breaking down of food. Chemical digestion is the breakdown of food molecules into smaller molecules that can be absorbed into the body.
Detailed explanation-3: -Chemical digestion is a vital part of the digestive process. Without it, your body wouldn’t be able to absorb nutrients from the foods you eat. While mechanical digestion involves physical movements, such as chewing and muscle contractions, chemical digestion uses enzymes to break down food.
Detailed explanation-4: -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.