[SOLVED] BIO 251 BIO 251 Quiz 7. Questions and answer (well explained) | Download To Score A.

BIO 251 Quiz 7 Return to Assessment List Part 1 of 1 - 100.0/ 100.0 Points From chapter 23 (23.1-23.7) Question 1 of 10 10.0 / 10.0 Points Which are three features of the mucosa and submuc osa that are different and unique to the small intestine? • A. Microvilli, villi, and rugae • B. Villi, lateals, and rugae • C. Circular folds, villi, and microvilli • D. Haustra, circular folds, villi • E. All the above are features of the small intestine Feedback: Good work; your answer is correct! Question 2 of 10 10.0 / 10.0 Points Our body’s ability to absorb vitamins from foods and supplements we take is vital to our health. Why do you think consuming some fat in the diet is important? • A. We need fat to help with absorption of fat-soluble vitamins such as A, D, E, and K • B. We need fat to help with absorption of water-soluble vitamins such as C, B1, B6 and B9 • C. We need fat to help with absorption of protein • D. We need fat to help with absorption of fiber • E. None of the above Feedback: Good work; your answer is correct! Question 3 of 10 10.0 / 10.0 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 4 of 10 10.0 / 10.0 Points The two regulatory mechanisms (controls) of the digestive system are and . • A. Neural and hormonal • B. Hormonal and enzymatic • C. Neural and enzymatic • D. The digestive system only has enzymatic control and nothing else • E. None of the above Feedback: Good work; your answer is correct! Question 5 of 10 10.0 / 10.0 Points Which of the following is not considered an accessory organ of digestion? • A. Pancreas • B. Large intestine • C. Gallbladder • D. Liver • E. None of the above are considered accessory organs of digestion Feedback: Good work; your answer is correct! Question 6 of 10 10.0 / 10.0 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 7 of 10 10.0 / 10.0 Points The correctly sequenced sections of the small intestine are: , , . • A. Duodenum; jejunum; ileum • B. Ileum, jejunum; duodenum • C. Duodenum; ileum; jejunum • D. Jejunum; duodenum; ileum • E. None of the above is correct Feedback: Good work; your answer is correct! Question 8 of 10 10.0 / 10.0 Points Which organ below produces bile for use in digestion? • A. Pancreas B. Liver • C. Gallbladder • D. Duodenum • E. None of the above Feedback: Good work; your answer is correct! Question 9 of 10 10.0 / 10.0 Points Mechanical digestion occurs when food is broken into smaller pieces, but the chemical makeup of the food does not change. The following is associated with mechanical digestion except . • A. Segmentation • B. Churning C. Mastication • D. Enzymes • E. Chewing Feedback: Good work; your answer is correct! Question 10 of 10 10.0 / 10.0 Points In which organ below does the majority of digestion occur? • A. Small intestine • B. Liver • C. Pancreas • D. Large intestine • E. Stomach Feedback: Good work; your answer is correct! Show Less