Biology Practice: Digestive System (Mock Test 4 - Expert/Experimental Logic)
1. In an experiment, a student adds dilute HCl to a test tube containing Salivary Amylase and Starch. After 20 minutes, the Iodine test still shows a blue-black color. Why?
2. A patient experiences severe pain in the upper right abdomen after eating fatty meals. Clinical tests suggest a blockage in the Cystic Duct. Which process is primarily affected?
3. What is the expert biological reason for the presence of "Sodium Bicarbonate" in both Bile and Pancreatic juice?
4. During "Absorption", glucose and amino acids enter the blood capillaries of the villi, but fatty acids and glycerol enter the:
5. "Enterokinase" is an expert example of a non-digestive enzyme in the gut that triggers digestion by:
6. If the "Gallbladder" is surgically removed, which dietary advice is most appropriate for the patient?
7. The "Islets of Langerhans" contain Beta-cells and Alpha-cells. What is the role of the hormone 'Glucagon' secreted by Alpha-cells?
8. "Deamination" is a vital hepatic process. What is the fate of the amino group removed from excess amino acids?
9. Which of the following describes the function of "Castle's Intrinsic Factor" produced by parietal cells?
10. In a "Barium Meal" X-ray, why is Barium sulphate used to visualize the digestive tract?
11. "Steapsin" is the pancreatic lipase. Its expert efficiency depends on the prior action of:
12. What is the clinical significance of "Dental Plaque"?
13. The "Kupffer Cells" found in the liver are specialized for:
14. Why do "Ruminants" (like cows) have a very large Caecum compared to humans?
15. "Assimilation" of amino acids involves their use in the synthesis of:
16. A student observes that 'Boiled Saliva' does not digest starch. This proves that enzymes are:
17. Which of the following is a symptom of "Cirrhosis" of the liver?
18. "Chylomicrons" are the forms in which ______ are transported from the intestinal cells into the lacteals.
19. The hormone "Secretin" is released by the duodenal mucosa to stimulate the:
20. What is the fundamental difference between "Mechanical" and "Chemical" digestion?
