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Biology Test

Enter the letter for the matching Answer
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1.
What happens to the cells at the edges of an injury when a cut in the skin or a break in a bone occurs?
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2.
What happens in the G2 phase?
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3.
Cancer cells break loose and spread throughout the ______
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4.
What is cancer?
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5.
What happens during the G1 phase?
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6.
T/F Chromosomes are not visible in most cells except during cell division.
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7.
What forms midway between the divided nucleus during cytokinesis in plant cells
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8.
What happens to a cell's ratio of surface area to volume as the cell's volume increases more rapidly than its surface area?
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9.
T/F Cancer is disease of the cell cycle
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10.
Interphase is divided into what 3 phases?
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11.
The period of growth in between cell divisions is called ??
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12.
What are internal regulators?
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13.
How does cell division solve the problem of increasing size?
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14.
If a cell's surface area is 6 cm2 and its volume ios 1 cm3, what is its ration of surface area to volume?
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15.
How can you obtain a cells ratio of surface area to volume?
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16.
What do cyclins regulate?
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17.
The nucleolus becomes visible in each daughter nucleus. phase of mitosis?
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18.
What is cell division?
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19.
What is cytokinesis?
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20.
What happens to the rapidly dividing cells when the healing process nears completion?
A.
body
B.
Telophase
C.
interphase
D.
Proteins that respond to events inside the cell
E.
Cells at the edges of the injury are stimulated to divide rapidly
F.
6:1
G.
The process by which the cell divides into 2 new daughter cells
H.
by reducing cell volume
I.
The division of the cytoplasm
J.
The rate of cell division slows down, controls on growth are restored, and everything returns to normal.
K.
True
L.
G1, S, G2
M.
true
N.
A disorder in which some of the body's own cells lose the ability to control growth
O.
The ratio decreases
P.
Many organelles and molecules required for cell division are produced
Q.
The timing of the cell cycle in eukaryotic cells
R.
Cell plate
S.
Divide the surface area by the volume
T.
Cells do most of their growing , cells increase in size, and synthesize new proteins and organelles
Type the Answer that corresponds to the displayed Question.
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21.
Centrioles take up positions on opposite sides of the nucleus. phase of mitosis?
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22.
What determines the rate at which food and oxygen in a cell are used up and waste products are produced?
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23.
Each pair of chromatids is attached at an area called the ???
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24.
Chromosomes line up across the center of the cell. phase of mitosis?
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25.
A nuclear envelope reforms around each cluster of chromosomes. phase of mitosis?
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26.
Cancer cells form masses of cells called ______
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27.
T/F As a cell increases in size, it usually makes extra copies of its DNA
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28.
Chromosomes move until they form 2 groups near the poles of the spindle. phase of mitosis?
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29.
Chromosomes become visible. phase of mitosis?
Type the Question that corresponds to the displayed Answer.
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30.
1Direct cells to speed up or slow down during the cell cycle. 2Include growth factors 3Prevent excessive cell growth and keep the tissues of the body from disrupting each other.

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