Question 26 of 33intermediate💡 UnderstandShort Answer3 marks

How are fats digested in our bodies? Where does this process take place?

Correct Answer

Fats are digested in the small intestine. When fats reach the intestine, they are present as large globules, which makes it difficult for enzymes to act on them. The liver secretes bile juice, which contains bile salts. These salts break down the large fat globules into smaller globules, a process similar to the emulsifying action of soaps. This increases the efficiency of enzyme action.

The pancreas secretes pancreatic juice containing the enzyme lipase. Lipase breaks down these emulsified fats for complete digestion. The walls of the small intestine then absorb the digested products.

Exercise: EXERCISES | Q: 5 | (Page 21)
For More Understanding

Explanation

The answer is derived directly from the textbook context which identifies the small intestine as the site for complete fat digestion. It explains the two-step process: first, bile salts emulsify large fat globules into smaller ones to increase surface area, and second, the enzyme lipase from pancreatic juice breaks down these emulsified fats.

Solution Steps

  1. Step 1: Identify the location of fat digestion from the text (Small Intestine).

  2. Step 2: Explain the role of Bile salts (Emulsification of large globules into smaller globules).

  3. Step 3: Explain the role of Pancreatic juice/Lipase (Breaking down emulsified fats).

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