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Consider the following statements each ...

Consider the following statements each with one or two blanks
(i) Trypsiongen is activated to trypsin by (1)
(ii) Fatty acids and glycerol are absorbed into (2) but glucose and amino acids are absorbed into (3).
Which one of the following option give the correct fill ups for the respectives blanks (1) to (3) in the statements?

A

A) (1)-cholecystokinin, (2)-blood vessels, (3)-lacteals

B

B) (2)-lacteals, (3)-blood capillaries

C

C) (1)-enterokinase,(2)-blood capillaries,

D

D) (1)-chymotrysinogen,(3)-lacteals

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to fill in the blanks in the given statements based on our understanding of digestion and absorption. Let's break it down step by step. ### Step-by-Step Solution: 1. **Identify the first blank**: - The statement is: "Trypsinogen is activated to trypsin by (1)". - Trypsinogen is an inactive precursor of the enzyme trypsin. It is activated by the enzyme **enterokinase** (also known as enteropeptidase). - Therefore, the first blank (1) is **enterokinase**. 2. **Identify the second blank**: - The statement is: "Fatty acids and glycerol are absorbed into (2)". - Fatty acids and glycerol, which are products of fat digestion, are absorbed into **lacteals**. Lacteals are specialized lymphatic vessels located in the villi of the small intestine that absorb dietary fats. - Thus, the second blank (2) is **lacteals**. 3. **Identify the third blank**: - The statement is: "but glucose and amino acids are absorbed into (3)". - Glucose and amino acids are absorbed directly into the **blood capillaries** from the intestinal lining. - Therefore, the third blank (3) is **blood capillaries**. ### Final Answers: - (1) enterokinase - (2) lacteals - (3) blood capillaries ### Summary of the Correct Fill-Ups: - The correct fill-ups for the respective blanks are: - (1) enterokinase - (2) lacteals - (3) blood capillaries ### Correct Option: - Based on the analysis, the correct option is **B**.
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