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Food Is Broken Down by Which of the Following Means? Mechanical and Peristalsis Digestion Enzymatical and Chemical Digestion Mechanical

Question

Food is broken down by which of the following means? Mechanical and Peristalsis Digestion Enzymatical and Chemical Digestion Mechanical and Chemical Digestion Mechanical and Physical Digestion

Solution

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Answer

The correct answer is **Mechanical and Chemical Digestion**.* **Mechanical digestion** involves physically breaking down food into smaller pieces. This process starts with chewing in the mouth and continues with churning and mixing in the stomach and small intestine. Think of it like chopping vegetables before cooking – it doesn't change what they are, just their size.* **Chemical digestion** involves breaking down the food into simpler nutrients that the body can absorb. This is done with the help of digestive enzymes, acids, and bile. This is like actually cooking the vegetables – it changes their chemical structure.While peristalsis (the muscle contractions that move food through the digestive tract) is a crucial part of digestion, it's a *mechanism* of mechanical digestion, not a separate type of digestion. Similarly, "physical digestion" is essentially the same as mechanical digestion. Enzymatic digestion is a specific type of *chemical* digestion.