Biology Lab Practice Questions With Answers (Set 02)

Questions
1. What three major classes of organic molecules studied today are present in cells?
2. You have been assigned the task of constructing a protein. What type of building block would you use?
3. A hydrolytic digestive enzyme breaks down starch to maltose molecules. Maltose is a ______
4. Why is it necessary to shake an oil and vinegar salad before adding it to a salad?
5. How would you test an unknown solution for Sugar?
6. How would you test an unknown solution for Fat?
7. How would you test an unknown solution for Starch?
8. How would you test an unknown solution for Protein?
9. Assume that you have tested an unknown sample with both Biuret reagent and Benedict’s reagent and that both tests result in a blue color. What have you learned?
10. What purpose is served when a test is done using water instead of a sample substance?
11. A test tube contains starch, a digestive enzyme for starch, and water. The Biuret test is negative. After 30 minutes, the Benedict’s test is positive. What substance is present?
12. A test tube that contains either albumin or pepsin tests positive for protein. Explain.
13. A student adds iodine to egg white and waits for a color change. How long will the student have to wait?
14. Contrast the location of DNA in a eukaryotic cell with that of a prokaryotic cell.
15. What characteristics do all eukaryotic cells have in common?
16. Why would you predict that an animal cell, but not a plant cell, might burst when placed in a hypotonic solution?
17. Which of cellular organelles would be included in the membranous canals and vacuoles category?
18. Which of cellular organelles would be included in the energy-related organelles category?
19. How do you distinguish, in terms of structure, between rough endoplasmic reticulum and smooth endoplasmic reticulum?
20. How do you distinguish, in terms of function, between rough endoplasmic reticulum and smooth endoplasmic reticulum?
21. If a dialysis bag filled with water is placed in a molasses solution, what do you predict will happen to the weight of the bag over time and why?
22. What is the relationship between plant cell structure and the ability of plants to stand upright?
23. The police are trying to determine if some nondescript material from a crime scene was plant matter. What would you suggest they microscopically look for?
24. A test tube contains red blood cells and as salt solution. When the tube is held up to a page, you can see the print. With reference to a concentration of 0.9% sodium chloride, how concentrated is the salt solution?
25. In part II- Cell Structure (page 6), what is the function of the Ribosome?
26. In part II- Cell Structure (page 6), what is the function of the Golgi Apparatus?
27. In part II- Cell Structure (page 6), what is the function of the Mitochondrion?
28. In part II- Cell Structure (page 6), what is the function of the Lysosome?
29. In part II- Cell Structure (page 6), what is the function of the Cytoskeleton?
30. In part II- Cell Structure (page 6), what is the function of the Nucleus?

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