Cell Review Key - Mercer Island School District

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KEY
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Cells Review (Chapter 3)
Fill in the chart below to compare prokaryotic and eukaryotic cells. Check the appropriate cell type, or
if the statement is true of prokaryotic and eukaryotic cells check both.
Prokaryotic
Cell
1.
2.
Cell that lacks membrane-bound organelles
(no mitochondria etc.)
Contains chromosome(s) made of DNA
3.
Cell’s chromosomes are contained in a nucleus
4.
Bacteria cells are made of this cell type
5.
Animals are made of this cell type
6.
Plants are made of this cell type
7.
Cell is surrounded by a cell membrane
Eukaryotic
Cell
Both
X
X
X
X
X
X
X
Label each of the images below as a prokaryotic or eukaryotic cell and briefly explain how you can
identify which cell type it is.
8. Cell type
Eukaryotic
Contains a nucleus and
other membrane-bound organelles.
9. Explanation:
10. Cell Type:
Prokaryotic
11. Explanation
DNA is not contained in a nucleus.
For each statement below, place a check in the correct box to indicate whether the statement describes
the plasma membrane (cell membrane), cell wall or both.
Plasma
Membrane
12. A thin, flexible layer that surrounds all cells
X
X
15. In plant cells, it is composed of a fibrous material called cellulose
16. Composed mainly of lipid, with proteins embedded in it
Both
X
13. A firm structure that supports and gives shape to a cell
14. External barrier that controls what can enter and exit
Cell
Wall
X
X
For each of the following questions, identify the missing cell part or give its function. Cell parts may be
used more than once.
17.
Structure/Function
Structure where proteins are produced (site of protein synthesis)
18.
Clear fluid inside the cell
19.
The powerhouse of the cell- that produces ATP
from cellular respiration
Cell Part
Ribosome
Cytoplasm
Mitochondria
20.
Contains chlorophyll, a green pigment that traps energy from the sun
Chloroplast
21.
Small bumps on the rough endoplasmic reticulum
Ribosomes
22.
The control center of the cell- that stores
DNA/Chromosomes
23.
24.
25.
An organelle that is surrounded by two membranes, with the inner
membrane folded to create more surface area.
A folded network of membrane bound compartments that help to fold
and transport proteins
Nucleus
Mitochondrion
ER
Proteins within the cell that provide support and
a transportation network.
Cytoskeleton
26.
A set of stacked membrane-bound sacs that work with the rough ER to
transport proteins to their proper destination.
Golgi Apparatus
27.
The site of photosynthesis
28.
Organelle where sugars are broken down to provide usable energy (ATP)
for the cell in a process called cellular respiration.
An organelle that contains digestive enzymes to break down worn-out
cell parts and foreign substances.
29.
Chloroplast
Mitochondrion
Lysosome
30. Compare and contrast vesicles and vacuoles.
Vacuoles are more permanent storage chambers while vesicles are
temporary transport compartments.
31. The nucleus is often described as the control center of the cell. What material does it contain that
store the important information needed to produce all the proteins needed within a cell?
DNA/ Chromosomes
32. Compare and contrast cilia and flagella.
Both are for movement (of cell or a fluid across the surface).
Cilia are shorter and more numerous.
For questions 34-57, label the parts of a plant and animal cell. Label plant cell diagram on lettered
blanks on the next page. Many of the organelles are present in both types of cells.
PLANT CELL
D
A
C
B
E
F
L
K
J
I
H
G
34. A
Chloroplast
40. G
35. B Cytoplasm
36. C
Rough Endoplasmic Reticulum
41. H Golgi Apparatus (or Body)
Smooth Endoplasmic Reticulum
42. I Plasma (or Cell)
37. D Cell Wall
43. J Central Vacuole
38. E Nucleolus
44. K Mitochondrion
39. F Nucleus
45. L Free Ribosome
Membrane
ANIMAL CELL
Cell Membrane
Lysosome
Free Ribosome
Mitochondrion
Golgi Apparatus
Rough ER
DNA/Chromosomes
Vesicle
Nucleolus
Smooth ER
Cytoplasm
Nucleus
58. Name 3 differences between plant cells and animal cells.
 Plant cells have a rigid cell wall
 Plant cells usually have chloroplasts
 Plant cells often have a central vacuole
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