Inside Collection: Biochemistry Exercises
Summary: These are exercise test questions to help build your knowledge of digestion and absorption lectures. This will help expand your knowledge on the topics to maximize learning at a deeper level, build confidence and help you succeed in the course.
| 1. Which of the following byproducts of bacterial digestion can be used for energy by hepatic and intestinal cells? | |
| A. | Methane gas |
| B. | Hydrogen gas |
| C. | Butyric acid |
| D. | Vitamin K |
| E. | Vitamin B complex |
| 2. Which of the following facilitates the hydrolysis of lipids by pancreatic enzymes in the intestines? | |
| A. | Secretin |
| B. | Bacteria |
| C. | Bile salts |
| D. | Bicarbonate |
| E. | Hydrochloric acid |
| 3. Which of the following enzymes digests triglycerides into two fatty acids and 2-monoacylglycerol in the mouth, stomach and intestines? | |
| A. | Colipase |
| B. | Lipase |
| C. | Alpha-amylase |
| D. | Pepsin |
| E. | Chymotrypsin |
| 4. Which of the following can safely transport long chain fatty acids in circulation? | |
| A. | Albumin |
| B. | Chylomicrons |
| C. | Bile salts |
| D. | Bicarbonate |
| E. | Micelles |
| 5. Which of the following nutrient pairs can passively diffuse out of the intestinal cells and is transported bound to plasma proteins in circulation? | |
| A. | Matured chylomicrons and dipeptides |
| B. | Polar amino acids and fructose |
| C. | Galactose and small tripeptides |
| D. | Short fatty acids and nonpolar amino acids |
| E. | Fructose and nascent chylomicrons |
| 6. A 35 year old patient has consumed aspirin on a daily basis for his usual headaches as a result of his stressful job. An endoscopy (a flexible probe with a camera on the end) was performed to check the stomach lining. Results showed inflammation and mucous erosion. What enzyme zymogen can be helpful in the diagnosis of suspected gastritis? | |
| A. | Trypsinogen |
| B. | Proelastase |
| C. | Procarboxypeptidase |
| D. | Chymotrypsinogen |
| E. | Pepsinogen |
| 7. Which of the following pancreatic enzymes is activated by trypsin to help digest phospholipids in the intestines? | |
| A. | Chymotrypsinogen |
| B. | Proelastase |
| C. | Procollagenase |
| D. | Prophospholipase A2 |
| E. | Procarboxypeptidase |
| 8. Which of the following can allow fructose in and out of the intestinal cells? | |
| A. | Sodium-dependent transporters (SGLT1) |
| B. | Hydrogen-dependent transporter |
| C. | Glucose transporter 4 (GLUT4) |
| D. | Glucose transporter 5 (GLUT5) |
| E. | Passive diffusion |