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Mitosis , Cell Cycle, and Cancer REVIEW

Total questions: 23

Worksheet time: 2hrs 42mins

Name
Class
Date
1.

The diagram shows cells in different phases of mitosis. A student is trying to find a cell in a particular phase of mitosis. The student is looking for evidence that spindle fibers are separating the chromosomes to ensure that each new nucleus has one copy of each chromosome.

Which cell is in the phase of mitosis that the student is searching for?

a)

Cell 1

b)

Cell 2

c)

Cell 3

d)

Cell 4

2.
At what point in the cell cycle does DNA replication occur and why?
a)
before a cell divides, to provide each of the two resulting cells with a complete set of DNA instructions
b)
before a cell divides, to ensure that the DNA will fit into the resulting cells
c)
during cell division, to ensure that the DNA will fit into the resulting cells
d)
after a cell divides, to provide each of the two resulting cells with a complete set of DNA instructions 
3.

Oncogenes are mutated forms of genes. Oncogenes can transform a cell into a tumor cell. Some tumor cells are benign, while others are malignant. How does the presence of an oncogene lead to the formation of a tumor?

a)

ATP production is inhibited.

b)

Cell division is unregulated.

c)

Somatic cell growth is inhibited.

d)

Antibody activity is unregulated.

4.

Part of the cell cycle is shown in this simplified model.


This part of the cell cycle is best described as the process that —

a)

duplicates the DNA

b)

completes cell division

c)

maintains genetic homeostasis

d)

synthesizes new molecules

5.

When cells leave the cell cycle, they exit during G1 phase and then enter G0 phase, a resting period. Most normal cells leave G0 phase and reenter the cell cycle at G1 phase before entering S phase. Cancer cells are different because that cannot enter G0 phase and are likely to do which of the following?

a)

Fail to complete S phase

b)

Mutate during G1 phase

c)

Repeat the cell cycle continuously

d)

Die after completing mitosis

6.
Which of the following describes cancer?
a)
Nondisjunction of gamete cells
b)
Cell division without replication of DNA
c)
Mitosis without cytokinesis
d)
Uncontrolled cell division
7.

Result of uncontrolled cell division

(a)  

8.
In mitosis, the two resulting cells are
a)
different from the starting cell and identical to each other.
b)
different from the starting cell and different from each other.
c)
identical to the starting cell and different from each other.
d)
identical to the starting cell and identical to each other.
9.

If there are 20 chromosomes in the nucleus before mitosis how many will there be in each new daughter cell after cytokinesis?

a)

20

b)

10

c)

40

d)

200

10.

Which of the following cells is NOT a type of somatic cell?

a)
b)
c)
d)
11.
Put the stages of mitosis in the correct order.
a)
prophase - metaphase - anaphase - telophase
b)
metaphase - anaphase - prophase - telophase
c)
anaphase - prophase - telophase - metaphase
d)
telophase - metaphase - prophase - anaphase
12.

Electrons are directed over surface of specimen producing 3D image of specimen's surface

a)

Scanning Tunneling Electron Microscope (STM)

b)

Transmission Electron Microscope (TEM)

c)

Compound Light Microscope

d)

Scanning Electron Microscope (SEM)

e)

Atomic Force Microscope (AFM)

13.

What is Apoptosis?

a)

A tumor

b)

A protein

c)

Programmed cell death

d)

Cell cycle checkpoints

14.

Select all stages of interphase?

a)

G1

b)

S

c)

G2

d)

Mitosis

15.
What phase of mitosis is occuring in the picture?
a)
Prophase
b)
Metaphase
c)
Cytokinesis
d)
Telophase
16.
In which phase does the cell spend most of it's life?
a)
Interphase
b)
Nuclear Division
c)
Telophase
d)
Mitosis
17.
What phase of mitosis is pictured?
a)
Metaphase
b)
Telophase
c)
Prophase
d)
Anaphase
18.
What is the name of the structure labeled X?
a)
Centriole
b)
Centrosome
c)
Chromatid
d)
Chromosome 
19.
What is the advantage of cells being so small?
a)
Small cells contain a greater quantity of enzymes than large cells.
b)
Small cells do not require energy and get everything they need from osmosis
c)
The cell has a smaller surface area to volume ratio which means it can move nutrients into the cell and  waste out more efficiently
d)
The cell then has a larger surface area to volume ratio which means it can move nutrients into the cell and waste out more efficiently
20.
How does cytokinesis differ in plant and animal cells?
a)
Cytokinesis only takes place in animal cells.
b)
Cytokinesis only takes place in plant cells.
c)
Plant cells form a cell plate, animal cells form a cleavage furrow.
d)
Animal cells form a cell plate, plant cells form a cleavage furrow.
21.

Sexual reproduction requires _____ parent(s) and asexual reproduction requires ___ parent(s).

a)

1,1

b)

2,2

c)

2,1

d)

1,2

22.

A lot of plants tend to use both sexual and asexual reproduction

a)

False

b)

True

23.

Sexual reproduction results in

a)

Genetically unique offspring

b)

Genetically identical offspring

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