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Which molecule type does bile emulsify?

A.

Lipids and proteins

B.

Proteins

C.

Carbohydrates and proteins

D.

Lipids

Answer and Explanation

The Correct Answer is D

A. Lipids and proteins: While bile is involved in fat digestion, it does not emulsify proteins.

B. Proteins: Bile does not emulsify proteins. Proteins are broken down by enzymes like pepsin.

C. Carbohydrates and proteins: Bile has no role in the digestion of carbohydrates or proteins.

D. Lipids: Bile emulsifies lipids, breaking them into smaller droplets to facilitate enzymatic digestion by lipases.


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Related Questions

Correct Answer is C

Explanation

A. Endocardium: The endocardium is the innermost layer of the heart wall, lining the chambers and valves, and is not in contact with pericardial fluid.

B. Fibrous pericardium: This is the outermost layer of the pericardium but is not part of the heart wall. It provides protection and support but does not come into direct contact with pericardial fluid.

C. Epicardium: The epicardium is the outer layer of the heart wall and is in direct contact with pericardial fluid, which is found between the epicardium and the pericardium.

D. Myocardium: The myocardium is the middle muscular layer responsible for heart contractions and is not in contact with pericardial fluid.

Correct Answer is A

Explanation

A. Cecum: The cecum is the first part of the large intestine, where fluids and salts are absorbed after digestion in the small intestine.

B. Ascending colon: The ascending colon continues the process of absorbing water and salts but starts after the cecum.

C. Rectum: The rectum stores feces and plays little role in fluid and salt absorption.

D. Descending colon: While the descending colon absorbs water, much of the absorption occurs earlier in the large intestine, primarily in the cecum.

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