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Q38 (CDS-I/2023) Science & Technology › Basic Science (Physics, Chemistry, Biology) › Human anatomy physiology Answer Verified

Which one of the following statements regarding bile secreted by liver is not correct?

Result
Your answer: —  Â·  Correct: A
Explanation

Bile is a complex fluid secreted by the liver that plays a critical role in digestion, but it does not contain digestive enzymes [2]. Instead, it contains bile salts that facilitate the emulsification of fats, breaking large globules into smaller droplets to increase the surface area for pancreatic lipase to act upon [5]. Bile is mildly basic or alkaline in nature, which allows it to neutralize the acidic chyme (food) arriving from the stomach [2]. This neutralization creates an optimal alkaline pH in the small intestine, which is essential for the activation and efficient functioning of pancreatic enzymes [3]. While bile acids and salts support the function of lipases, the actual chemical digestion of lipids is performed by enzymes like pancreatic lipase, not by bile itself. Therefore, the statement that bile contains enzymes for lipid digestion is incorrect.

Sources

  1. [1] Science-Class VII . NCERT(Revised ed 2025) > Chapter 9: Life Processes in Animals > Small Intestine > p. 125
  2. [2] Science , class X (NCERT 2025 ed.) > Chapter 5: Life Processes > Activity 5.3 > p. 86
  3. [5] https://www.ncbi.nlm.nih.gov/books/NBK549765/
  4. [3] Science-Class VII . NCERT(Revised ed 2025) > Chapter 9: Life Processes in Animals > Small Intestine > p. 126
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