EXCRETORY SYSTEM
EXCRETORY SYSTEM ALL QUESTIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Teeth grinding food
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Enzymes digesting nutrients
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Stomach contracting
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None of the above
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Detailed explanation-1: -Answer and Explanation: a. filtration is NOT a function of the digestive system.
Detailed explanation-2: -Mechanical digestion involves physically breaking down food substances into smaller particles to more efficiently undergo chemical digestion. The role of chemical digestion is to further degrade the molecular structure of the ingested compounds by digestive enzymes into a form that is absorbable into the bloodstream.
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: -The large intestine does not secrete any enzyme. It is about 1.5 m long and consists of the caecum, appendix, colon, and rectum. It mainly absorbs water from undigested food.