Which one of the following statements is true regarding digestion and absorption

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Which one of the following statements is true regarding digestion and absorption of food in humans?

Options

(a) Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like Na+
(b) Chylomicrons are small lipoprotein particles that are transported from  intestine into blood capillaries
(c) About 60% of starch in hydrolysed by salivary amylase in our mouth
(d) Oxyntic cells in our stomach secrete the proenzyme pepsinogen

Correct Answer:

Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like Na+

Explanation:

Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like Na⁺. Carbohydrates are absorbed as monosaccharides (simple sugars such as flucose, fructose, and galactose that cannot be further broken done by hydrolysis) or as disaccharides carbohydrates (such as sucrose, lactrose, maltose, and dextrin that can be hydrolyzed to two monosaccharides). These simpler molecules, however, must be obtained by the breaking down of polysaccharides, complex carbohydrates that contain many monosaccharides. Chief among these is amylase, a starch that accounts for 20 percent of dietary carbohydrate.

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Topics: Human Physiology Systems (35)
Subject: Biology (4253)

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