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Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332

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BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332
Textbook Problem
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Monosaccharides and amino acids absorbed from the small intestine enter ________.

  1. a. blood vessels
  2. b. lymph vessels
  3. c. fat droplets
  4. d. bile

Summary Introduction

Introduction: The small intestine is the major organ in human body that is involved in the absorption of major nutrients, minerals, and water. The digested food from the stomach passes through the small intestine, and the cells present in the small intestinal wall absorb the nutrients and transport them to the blood vessels. The blood vessels carry them to the different parts of the body.

Explanation

Reason for the correct answer: Intestinal walls contain finger-like tissue called the villi. The villi or villus have a complex network of capillaries and lacteals (lymph vessels). The nutrients (carbohydrate and amino acids) from the lumen of the intestine get transported into the capillaries via the epithelial cells of villi. These nutrients are then transported to the different parts of body through the blood vessels.

Option a. is given as “blood vessels”. The absorbed carbohydrate and amino acids from the small intestine reach the blood vessels and are carried to every part of the body.

Hence, the correct answer is option a.

Reasons for the incorrect answers:

Option b. is given as “lymph vessel”...

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