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BIO 251 - Unit Exam 4. Questions and Answers. All 100% Correct.

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BIO 251 - Unit Exam 4. Questions and Answers. All 100% Correct. BIO 251 Unit Exam 4 Return to Assessment List Part 1 of 3 - Part 1 40.0/ 40.0 Points From chapter 23 Question 1 of 22 4.0/ 4.0 Points The stomach is protected from self-digestion by the ______________. When this breaks down, ...

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  • January 30, 2023
  • 17
  • 2022/2023
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BIO 251 Unit Exam 4
Return to Assessment List


Part 1 of 3 - Part 1 40.0/ 40.0 Points
From chapter 23

Question 1 of 22
4.0/ 4.0 Points
The stomach is protected from self-digestion by the ______________. When this breaks down,
_________ can form and be painful.





A. Muscularis mucosa; nodules





B. Mucosal barrier; ulcers





C. Duodenum; ulcers





D. Serosa; nodules





E. None of the above is correct



Feedback: Good work; your answer is correct!

,Question 2 of 22
4.0/ 4.0 Points
The ___________ is the thin layer of the mucosa responsible for pulling the mucosa into its
many folds which increases the surface area of the alimentary canal.





A. Muscularis (externa)





B. Submucosa





C. Serosa





D. Muscularis mucosa





E. None of the above



Feedback: Good work; your answer is correct!
Question 3 of 22
4.0/ 4.0 Points
Where are carbohydrates first digested?





A. Esophagus

, 

B. Stomach





C. Mouth





D. Small intestine





E. Liver



Feedback: Good work; your answer is correct!
Question 4 of 22
4.0/ 4.0 Points
The correctly sequenced sections of the small intestine are: ____________, _____________,
____________.





A. Duodenum; jejunum; ileum





B. Ileum, jejunum; duodenum



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