Science Skills Packet – Answer Key
Science Skills Packet – Answer Key
Interpreting graphics
1. CELL 1—PLANT CELL
A. cell wall
B. central vacuole
C. chloroplast
2. Cell 2—bacterium
D. cell membrane
E. cell wall
F. DNA
3. Cell 3—animal cell
G. smooth ER
H. mitochondrion
I. rough ER
4. The bacterium is a prokaryotic cell. The plant cell and the animal cell are eukaryotic cells.
5. One difference is that the bacterium, a prokaryote, does not have a nucleus or other organelles, aside from ribosomes, that carry out specific functions. The plant cell and the animal cell, which are both eukaryotic cells, do contain organelles. Such organization allows eukaryotic cells to function in more-complex ways than prokaryotic cells. A plant cell differs from an animal cell in that the plant cell has a cell wall, a central vacuole, and chloroplasts. All three cells share many characteristics. The cells have a cell membrane, cytoplasm, and genetic material. They all have the ability to reproduce.
Look Alikes
1. c
2. a
3. e
4. d
5. b
Concept Mapping
1. prokaryotes
2. eukaryotes
3. a cell membrane
4. plant cells
5. animal cells
6. cytoplasm
7. ribosomes
(Answers to 3, 6, and 7 are interchangeable.)
8. pili
9. a capsule
(Answers 8 and 9 are interchangeable.)
10. a cell wall
11. chloroplasts
12. a central vacuole
(Answers to 11 and 12 are interchangeable.)
Analogies
1. b
2. d
Microscope Mission
1. cytoplasm
2. vesicles
3. mitochondria
4. nucleus
5. nuclear membrane
6. chromatid
7. endoplasmic reticulum
8. ribosomes
9. cell membrane
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