Page 1 of 5 Combined BIOD 151 - Module 3 Exam Combined BIOD 151 - Module 3 Exam.pdf
Combined BIOD 151 - Module 3: Exam
Question 1: (5 pts)
Explain why a patient with liver disease would have intolerance to fatty
foods.
• Correct Answer: The liver produces bile, which breaks down
fats. If the liver is diseased and produces less or no bile, fats are not
effectively broken down, leading to intolerance and discomfort when
consuming fatty foods.
Question 2: (5 pts)
Fill in the four blanks:
• Food enters the stomach from the A___ via the B__ sphincter.
• Food exits the stomach via the C sphincter into the____D_______.
• Answers:
• A. Esophagus
• B. Cardiac sphincter
• C. Pyloric sphincter
• D. Duodenum
Question 3: (10 pts)
Label the following 5 organs of the digestive system:
• 3: Stomach
• 4: Gallbladder
• 7: Jejunum (not small intestine)
• 9: Appendix (not large intestine)
• 10: Rectum (not large intestine)
Question 4: (5 pts)
A patient is experiencing vitamin toxicity. What type of vitamin most likely
would be causing this toxicity? Explain your answer.
• Correct Answer: Fat-soluble vitamins are more likely to cause
toxicity because they are stored in the body’s fat and are not easily excreted.
Question 5: (5 pts)
Explain which digestive system functions are carried out by the small
intestine.
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, Page 2 of 5 Combined BIOD 151 - Module 3 Exam Combined BIOD 151 - Module 3 Exam.pdf
• Answer: The small intestine is primarily responsible for chemical
digestion, where enzymes from pancreatic juices break down nutrients, and
for absorption, where digested nutrients, water, and fats are absorbed into
the bloodstream.
Question 6: (10 pts)
Describe parietal cells and chief cells: name their location, secretions, and
purposes.
• Answer: Parietal cells, located in the stomach wall, secrete
hydrochloric acid, creating an acidic environment that kills bacteria and
activates digestive enzymes. Chief cells secrete pepsinogen, which is
converted to pepsin by the acidic environment to begin protein digestion.
Question 7: (4 pts)
Match the digestive organ with the one substance it produces:
• Pancreas: Lipase
• Liver: Urea
• Mouth: Salivary amylase
Question 8: (3 pts)
What is the purpose of the hormone Ghrelin?
• Correct Answer: Increase hunger, decrease satiety.
Question 9: (3 pts)
Which of the following statements is false?
• Correct Answer: The ileocecal valve controls the entrance of
chyme into the large intestine.
Question 10: (2 pts)
True/False: Lipids can be divided into three categories: saturated fat,
unsaturated fat, and cholesterol.
• Correct Answer: True
Question 11: (2 pts)
This study source was downloaded by 1827175 from cliffsnotes.com on 01-13-2026 17:52:33 GMT -06:00
Combined BIOD 151 - Module 3 Exam.pdf /2026-2027 Combined BIOD 151 - Module 3 Exam.pdf 100% correct
https://www.cliffsnotes.com//study-notes/19582602
Combined BIOD 151 - Module 3: Exam
Question 1: (5 pts)
Explain why a patient with liver disease would have intolerance to fatty
foods.
• Correct Answer: The liver produces bile, which breaks down
fats. If the liver is diseased and produces less or no bile, fats are not
effectively broken down, leading to intolerance and discomfort when
consuming fatty foods.
Question 2: (5 pts)
Fill in the four blanks:
• Food enters the stomach from the A___ via the B__ sphincter.
• Food exits the stomach via the C sphincter into the____D_______.
• Answers:
• A. Esophagus
• B. Cardiac sphincter
• C. Pyloric sphincter
• D. Duodenum
Question 3: (10 pts)
Label the following 5 organs of the digestive system:
• 3: Stomach
• 4: Gallbladder
• 7: Jejunum (not small intestine)
• 9: Appendix (not large intestine)
• 10: Rectum (not large intestine)
Question 4: (5 pts)
A patient is experiencing vitamin toxicity. What type of vitamin most likely
would be causing this toxicity? Explain your answer.
• Correct Answer: Fat-soluble vitamins are more likely to cause
toxicity because they are stored in the body’s fat and are not easily excreted.
Question 5: (5 pts)
Explain which digestive system functions are carried out by the small
intestine.
This study source was downloaded by 1827175 from cliffsnotes.com on 01-13-2026 17:52:33 GMT -06:00
Combined BIOD 151 - Module 3 Exam.pdf /2026-2027 Combined BIOD 151 - Module 3 Exam.pdf 100% correct
https://www.cliffsnotes.com//study-notes/19582602
, Page 2 of 5 Combined BIOD 151 - Module 3 Exam Combined BIOD 151 - Module 3 Exam.pdf
• Answer: The small intestine is primarily responsible for chemical
digestion, where enzymes from pancreatic juices break down nutrients, and
for absorption, where digested nutrients, water, and fats are absorbed into
the bloodstream.
Question 6: (10 pts)
Describe parietal cells and chief cells: name their location, secretions, and
purposes.
• Answer: Parietal cells, located in the stomach wall, secrete
hydrochloric acid, creating an acidic environment that kills bacteria and
activates digestive enzymes. Chief cells secrete pepsinogen, which is
converted to pepsin by the acidic environment to begin protein digestion.
Question 7: (4 pts)
Match the digestive organ with the one substance it produces:
• Pancreas: Lipase
• Liver: Urea
• Mouth: Salivary amylase
Question 8: (3 pts)
What is the purpose of the hormone Ghrelin?
• Correct Answer: Increase hunger, decrease satiety.
Question 9: (3 pts)
Which of the following statements is false?
• Correct Answer: The ileocecal valve controls the entrance of
chyme into the large intestine.
Question 10: (2 pts)
True/False: Lipids can be divided into three categories: saturated fat,
unsaturated fat, and cholesterol.
• Correct Answer: True
Question 11: (2 pts)
This study source was downloaded by 1827175 from cliffsnotes.com on 01-13-2026 17:52:33 GMT -06:00
Combined BIOD 151 - Module 3 Exam.pdf /2026-2027 Combined BIOD 151 - Module 3 Exam.pdf 100% correct
https://www.cliffsnotes.com//study-notes/19582602
