Download Biology 102 A Chapter 7 CFA Standard SB1. Students will analyze

Biology 102
Chapter 7 CFA
A
Standard
SB1. Students will analyze the nature of relationships between structures and functions in living cells.
a. Explain the role of cell organelles for both prokaryotic and eukaryotic cells, including the cell
membrane, in maintaining homeostasis and cell reproduction.
1. Which statement is not a basic principle of the cell theory?
a. Most cells come from other cells.
b. Cells are the basic unit of structure in an organism
c. All living organisms are made up of cells.
d. Cells are the basic unit of organization in an organism
2. Which statement is true about bacterial cells?
a. The cells are very large.
c. They are eukaryotes.
b. The cells have no nucleus.
d. They have organelles.
3. The process of the cell membrane using energy to pump sodium out of a cell is called ____.
a. diffusion
b. osmosis
c. active transport
d. coupled transport
Figure 7-4
4. What would happen to the structure in Figure 7-4 if part D, cholesterol, is completely removed?
a. It would become more rigid.
c. It would have holes in it.
b. It would disintegrate.
d. It would collapse in on itself.
5. Where are you least likely to find water in the structure shown in Figure 7-4?
a. A
b. B
c. C
d. D
6. Which substance on the cell membrane helps identify chemical signals from outside the cell?
a. carbohydrate chain
b. cholesterol
c. membrane lipids
d. transport molecules
7. Which is present in all cells?
a. cell membrane
b. mitochondria
c. cell wall
d. nucleus
8. A plant cell is placed in a hypotonic solution. What will happen to the plant cell?
a. It will swell.
b. It will shrink.
c. It will stay the same.
d. It will wilt.
9. Cilia and flagella help to move cells through watery environments. What role do they play on
cells that do not move?
a. They hold neighboring cells in a fixed position.
b. They move substances along the surface of the cell.
c. They protect the cell by whipping at harmful cells.
d. They transmit waste materials away from the cell.
10. Substances are transported into and out of cells in order to maintain:
a. osmosis
b. homeostasis
c. concentration gradient
d. mitosis
11. An electron microscope can magnify an object about 500,000 times. How does this magnification
compare with the magnification of a compound light microscope?
a. 500 times lower
b. 100 times lower
c. 100 times higher
d. 500 times higher
12.What major improvement came with the development of the scanning electron microscope?
a. Magnets were replaced with lighter materials.
b. It produced images with better color.
c. The magnification was higher.
d. The images were three dimensional.
13. What happens in the process of diffusion when dynamic equilibrium is reached?
a. the movement of the molecules stops being random
b. the molecules are mixed and stop moving
c. the rate of change in the solution slows by one half
d. there is continuous movement but no change in concentration
Use the pictures below to answer questions 14 - 19. Include all choices that are correct!!!!
a.
b.
c.
d.
e.
14. Which organism(s) are eukaryotic?
15. Which organism(s) would have a cell wall?
16. Which organism(s) are prokaryotic AND have a cell wall?
17. Which organism(s) are unicellular?
18. Which organism would have the largest vacuole?
19. Which organism(s) would have lysosomes and centrioles?
20. Which is present only in eukaryotic cells?
a. cell membrane
b. chromosomes
c. DNA
d. nucleus
21. Chloroplasts are the organelles in which photosynthesis occurs. These organelles are found only
in plant cells. Which organelle below is found only in animal cells?
a. golgi apparatus
b. lysosome
c. mitochondria
d. ribosome
22.Which organelle converts sugars into energy?
a. lysosome
c. nucleus
b. mitochondrion
d. ribosome
Matching
23. a unicellular organism such as bacteria
24. cells that have a nucleus
a. eukaryote
25. cells that have organelles that carry out specific tasks
b. prokaryote
26. the first type of cell to evolve
27. A scientist at the polar ice cap was studying an ice sample from hundred of meters below the
surface. While examining the ice, the scientist found some cells from many years ago. Using
an electron microscope, the scientist identified these cell structures: a cytoskeleton,
mitochondrion, nucleus, cell wall, and ribosomes. What kind of organism did the scientist find?
a. animal
c. plant
b. bacteria
d. He did not have enough information.
Matching
28. where ribosomes are made
29. where proteins are synthesized
30. gets rid of unwanted substances in the cell
31. contains the cell’s DNA
32. stores enzymes
33. acts as a center for packaging cell proteins
34. found outside the cell membrane in some cells
a.
b.
c.
d.
e.
f.
g.
cell wall
Golgi apparatus
lysosome
nucleolus
nucleus
ribosome
smooth ER
35. A plant cell is placed in a hypotonic solution. What will happen to the plant cell?
a. It will swell.
c. It will stay the same.
b. It will shrink.
d. It will wilt.
36. Algal cells are placed in an isotonic solution. Additional amounts of solutes are slowly added to the
solution. What happens to the cells?
a. They will begin to swell.
c. They will stay the same.
b. They will burst.
d. They will shrink.
37. What types of materials are expelled from cells during exocytosis?
a. large molecules such as hormones
b. positive and negative ions
c. small molecules such as carbon dioxide
d. water and glycerol
38. Which of the following is an example of passive transport?
a. endocytosis
c. facilitated diffusion
b. exocytosis
d. Na+/K+ ATPase pump
Each diagram below represents a cell placed in a solution. Match each with the correct solution type.
A.
39. Hypertonic solution
40. Hypotonic solution
41. Isotonic solution
42. Which cell might burst?
B.
C.
b.
a.
c.
d.
e.
43. What type of cell is represented by the diagram above?
a. a prokaryotic, animal cell
c. a prokaryotic, plant cell
b. a eukaryotic, animal cell
d. a eukaryotic, plant cell
44. used to store water
45. controls cells activities
46. site of photosynthesis
47. controls what enters and leaves the cell
48. gives support and protection to cell
49. What is in the cell wall of a plant?
a. peptidoglycan
b. chitin
c. glucose
d. cellulose
50. What is the cell wall of a bacterium made of?
a. peptidoglycan
c. glucose
b. chitin
d. cellulose