23. Which one of the following alimentary segments has NO digestive function: A)

Question

23. Which one of the following alimentary segments has NO digestive function: A) stomaclh B) ascending colon C) ileum D) esophagus E) duodenum 24. Which one of the following is NOT absorbed by the human large intestines A) water B) vitamin K C) some of the B vitamins D) ions E) protein 25. The primary function of the small intestines is: a) absorption of nutrients b) absorption of water c) waste secretion d) vitamin conversion e) mineral conversion 26. The is a significant site of absorption of water and electrolytes, but NOT of nutrients. A) mouth B) stomach C) small intestine D) large intestine E) None of the answers are correct. 27. Chief cells secrete A) pepsinogen. B) gastrin. C) mucus. D) hydrochloric acid. E) intrinsic factor. 28. G cells of the stomach secrete A) cholecystokinin. B) secretin. C) gastrin. D) enterokinase. E) pepsin

Explanation / Answer

23. Esophagus

It is only food pipe. Which carries food from mouth to upper part of stomach.

24.some of vitamin B

It gets absorbed in small intestine

25.absorption of nutrients

Absorption of nutrients and minerals is main function of small intestine

26.small intestine

Small intestine is main part of digestive tract where mostly all gets absorbed.

27.chief cell secrets pepsinogen

It also releases chymosin

28.gastrim secreted by G cells

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