Biology Lab Practice Questions With Answers (Set 09)

1- What happens to enzymes when they are boiled?
2- Will digestion of starch occur when using boiled pancreatic amylase?
3- Write the equation of the chemical reaction catalyzed by pancreatic amylase.
4- In the pancreatic amylase experiment (page 1-2), what is the purpose of test tube #7 and test #8.
5- In the pancreatic amylase experiment (page 1-2), why do expect test tube #1 to be positive for starch?
6- In the pancreatic amylase experiment (page 1-2), why do expect test tube #2 to be negative for sugar?
7- In the pancreatic amylase experiment (page 1-2), why do expect test tube #7 to be mostly positive for starch?
8- In the pancreatic amylase experiment (page 1-2), why do expect test tube #4 to be positive for sugar?
9- In the pancreatic amylase experiment (page 1-2), why do expect test tube #5 to be positive for starch?
10- In the pancreatic amylase experiment (page 1-2), why do expect test tube #6 to be negative for sugar?
11- In the pancreatic amylase experiment (page 1-2), why do expect test tube #8 to be negative for sugar?
12. Keeping in mind the hepatic portal system of page 3, what blood glucose level (low, moderate, or high) would you expect in a sample taken before eating, near the small intestine?
13. Keeping in mind the hepatic portal system of page 3, what blood glucose level (low, moderate, or high) would you expect in a sample taken before eating, at the hepatic portal vein?
14. Keeping in mind the hepatic portal system of page 3, what blood glucose level (low, moderate, or high) would you expect in a sample taken before eating, at the inferior vena cava?
15. Keeping in mind the hepatic portal system of page 3, what blood glucose level (low, moderate, or high) would you expect in a sample taken after eating, near the small intestine?
16. Keeping in mind the hepatic portal system of page 3, what blood glucose level (low, moderate, or high) would you expect in a sample taken after eating, at the hepatic portal vein?
17. Keeping in mind the hepatic portal system of page 3, what blood glucose level (low, moderate, or high) would you expect in a sample taken after eating, at the inferior vena cava?
18. Why does the inferior vena cava always have a moderate blood glucose level (before and after eating)?
19. Do arc reflexes require the intervention of the brain?
20. Why does your eye have a blind spot?
21. What is the function of the human cerebrum?
22. What is the function of the gray matter of the spinal cord?
23. What is the function of the white matter of the spinal cord?
24- Contrast the eye of an arthropod with that of a human.
25- Describe an experiment that would illustrate the presence of a blind spot in the human eye.
26- Define fertilization.
27- Define the embryological stage of cleavage.
28- Define the embryological stage of gastrulation.
29- Define the embryological stage of neurulation.
30- Define the term pluripotent stem cells.

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