Chapter 3: The Cell, The Fundamental Unit of Life
Module 3.5 The nucleus houses DNA packaged as chromosomes.
2. Complete the following diagram of a nucleus:
3. You are a biologist looking at samples of pond water. Using a microscope to investigate your samples, you identify a cell with a nucleus. Briefly explain how you know immediately that this is not a prokaryote. Additionally, without further investigation, would you be able to determine if it was a plant or animal cell?
4. Complete the following table regarding the nucleus:
|Nuclear Envelope||Nuclear Pores||Nucleolus||Nucleus|
5. Complete the following diagram that illustrates that relationship between DNA, chromatin, and chromosomes:
Module 3.6 Several organelles participate in the production of proteins.
6. True or False; If false make it a true statement: DNA controls the functions of a cell by performing all of those functions itself.
8. You discover a new drug that blocks the movement of substances through the nuclear pores of the nucleus. Would you drug affect transcription, translation, or both? Briefly explain your answer.
9. From the information in question 8, would your drug have any effect on bacteria? Briefly explain your answer either way.
11. Insulin is a protein hormone that is released into the bloodstream from cells in your pancreas. Which of the following organelles is responsible for its export from the cell:
12. Complete the following table regarding the involvement of organelles in protein synthesis:
|Endoplasmic reticulum||Ribosomes||Golgi Apparatus||Vesicles|
13. You expect cells that are responsible for the synthesis of hormones (like testosterone) to be rich in which of the following:
14. Label the following diagram, which is an overview of protein synthesis:
Module 3.7 Chloroplasts and mitochondria provide energy to the cell.
15. True or False; If false, make a true statement: An animal cell contains chloroplasts and mitochondria.
17. The process of photosynthesis occurs primarily in a plant’s leaves. What organelle (related to photosynthesis) would you expect to be present in the cell of a plant’s leaves?
18. Complete the following diagram of a chloroplast:
19. What happens to the CO2 you release as a result of cellular respiration?
20. Complete the following diagram of a mitochondria:
22. Briefly explain how animals and plants work to cycle the elements carbon and oxygen through an ecosystem.
23. Complete the following table comparing chloroplasts and mitochondria:
Module 3.8 Various cellular organelles provide storage, movement, and shape.
25. True or False, If false make it a true statement: Cilia are more numerous than flagella.
26. Any drug that inhibits the function of flagella likely affects what cellular function?
27. Complete the following table regarding organelles:
28. Certain human cells are highly motile, which means they can move throughout the tissues of your body. Other than a flagellum or cilia, what other organelle is directly involved in a cell moving through your tissues?
29. Which of the following is responsible for providing a connection that holds cells together:
30. Label the diagram below, which illustrates the nucleus and cytoskeleton of a human cell: