Download Chapter 3 Review WS

Name: _______________________________
Chapter 3 Review
Circle the correct letter of the answer that best completes each statement.
1. The cell membrane
a. provides protection for the cell
b. keeps the cell’s inner contents together
c. regulates the movement of materials into and out of the cell
d. does all of these
2. Water usually moves through the cell membrane from an area of
a. lesser concentration to an area of higher concentration
b. equal concentration to an area of equal concentration
c. higher concentration to an area of lesser concentration
d. none of these
3. The total number of cells in an organism increases as a result of
a. respiration
c. osmosis
b. cell division
d. homeostasis
4. Chromatids are held together by a
a. spindle
b. centriole
c. centromere
d. cell membrane
5. A cell has 12 chromosomes. How many chromosomes will each daughter cell
have after cell division?
a. 24
c. 12
b. 6
d. 48
6. A structure found in animal cell division that is not usually found in plant cell
division is the
a. spindle
c. cell wall
b. centromere
d. centriole
7. A membrane that allows all materials to pass through is
a. selectively permeable
c. permeable
b. impermeable
d. none of these
8. The process in which the nucleus of a cell divides into two nuclei and the
formation of two new daughter cells begins is called
a. osmosis
c. diffusion
b. mitosis
d. spindle formation
If the statement is true, write “true.” If it is false, change the underlined word or
words to make the statement true.
9. ______________ As an organism grows, its cells increase in size.
10. ______________ As a result of mitosis, a cell having 20 chromosomes gives rise
to two cells, each of which contains 20 chromosomes.
11. ______________ During phase 3 of cell division (metaphase), chromosomes
attach to the spindle.
12. ______________ The movement of water through a cell membrane is called
diffusion.
13. ______________ Meiosis begins during phase 2 of cell division (prophase).
Answer the following using complete sentences.
14. Why is it vital that a cell membrane be selectively permeable?
15. How do living things grow? What is the main factor that limits cell growth?
16. Describe and compare chromosomes, chromatin, chromatids, and centromeres.
17. Describe and compare diffusion, osmosis, and active transport.
18. How does the process of cell division ensure that daughter cells will be identical
to the parent cell?
19. Your favorite plant has begun to wilt. You feel the soil in its pot and find that it is
very dry. You water your plant and about 20 minutes later you discover that the
plant is standing up straight again. How does this observation relate to osmosis?
20. In a famous science fiction movie called The Blob, a giant, ameba like cell
terrorizes a community, eating many of its residents. What basic fact about cells
did the moviemakers disregard for the sake of drama?