Anatomy & Physiology Gastrointestinal #13

Question

Which is the digestive function of bile produced by the liver?

Answers

  1. Breakdown and digestion of carbohydrates
    • Rationale:

      Bile is not responsible for the breakdown and digestion of carbohydrates. Salivary amylase is the substance that begins the process of carbohydrate breakdown in the mouth.

  2. Breakdown and digestion of proteins
    • Rationale:

      Bile is not responsible for the breakdown and digestion of proteins. Amylase and lipase are both substances that process proteins allowing absorption; this absorption occurs in the stomach and the small intestine.

  3. Breakdown and digestion of sugars
    • Rationale:

      Bile is not responsible for the breakdown and digestion of carbohydrates. Sugar is a carbohydrate; therefore, amylase is the substance that begins the breakdown of sugar into glucose which is used as fuel for the body.

  4. Breakdown and digestion of fats
    • Rationale:

      Bile, which is produced by the liver and stored in the gallbladder, is the substance that is responsible for breaking down fat for use within the body.

Overview

Digestion is defined as the process of breaking down food particles via chemical and mechanical mechanisms into small particles and molecules for absorption or excretion.

Explanation

Learning Outcomes

Several organs, classified as accessory organs, play a role in the digestive process but are housed outside of the digestive tract. These organs include the gallbladder, the liver, the salivary glands, the tongue and the pancreas. The gallbladder stores bile, a substance that is responsible for the breakdown and digestion of fats.

Test Taking Tip

Think about the function of bile and its role in digestion to correctly answer this question.

Video Rationale