Question
What is the main function of bile in human digestion?
The correct answer is
To make food alkaline and break down large fat globules
Bile's Main Function in Digestion
Bile plays a crucial role in the digestion process, primarily acting in the small intestine.
Key Digestive Roles of Bile
- Fat Emulsification: Bile salts break down large fat globules into smaller droplets. This process, called emulsification, increases the surface area available for digestive enzymes (like lipase) to effectively break down fats.
- Neutralizing Acidity: Bile is alkaline. It helps neutralize the acidic chyme (partially digested food) coming from the stomach into the small intestine. This provides an optimal pH environment for the enzymes in the small intestine to function efficiently.
Analysis of Incorrect Options
- Option 1: Mixing food with saliva is the function of saliva produced in the mouth, aiding in lubrication and initial carbohydrate digestion.
- Option 2: Complete protein digestion occurs mainly through enzymes like pepsin in the stomach and trypsin/chymotrypsin in the small intestine. Bile does not directly digest proteins.
- Option 4: Converting glucose into glycogen is a metabolic function of the liver, related to blood sugar regulation, not the direct digestive function of bile in the intestines.
Therefore, the primary functions of bile align with making the food environment alkaline and breaking down large fat globules.
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Important Questions from Human Body
- Which part of a neuron carries the nerve impulse away from the cell body?
- A woman using a copper-T complains of abdominal pain and discomfort. What is the likely reason?
- Which of the following events directly triggers the process of menstruation?
- Which of the following is a characteristic of the onset of puberty in boys?
- Read the given assertion (A) and reason (R) and select the most appropriate option.
(A): The onset of puberty in females occurs earlier than in males, but both attain their final height by 18-20 years of age.
(R): Although puberty begins later in males, their growth spurt is more rapid than in females.
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