WorksheetsCellular Reproductions II
Total questions: 28
Worksheet time: 14mins
Name
Class
Date
1.
In
what phase does the cell begin to split the cytoplasm and daughter cells first
become visible in mitosis?
a)
cytokinesis
b)
anaphase
c)
prophase
d)
metaphase
2.
During what
phase of mitosis do centromeres divide and the chromosomes move toward their
respective poles?
a)
prophase
b)
telophas
c)
anaphase
d)
cytokinesis
3.
Which phase of the cell cycle occurs when the
cell is preparing to divide so it grows in size making organelles and copying
DNA?
a)
telophase
b)
prophase
c)
interphase
d)
centromere
4.
What forms across the center of a plant cell
near the end of telophase?
a)
centromere
b)
cell plate
c)
_sister chromatid
d)
Cytokinesis (2x)
5.
Why is mitosis important?
a)
development and
growth
cell
replacement
regeneration
asexual
reproduction
b)
development and
growth
cell
replacement
regeneration
sexual
reproduction
c)
development and
growth and cell
replacement
d)
None of the ablove
6.
This happens during?
Cells increase in size in, produce RNA and synthesize protein and this period ensures that everything is ready for DNA synthesis.
Cells increase in size in, produce RNA and synthesize protein and this period ensures that everything is ready for DNA synthesis.
a)
M Phase
b)
Gap 1 (G1)
c)
S Phase
d)
Gap 2 (G2)
7.
This happens during?
Between DNA synthesis and mitosis and it is a control checkpoint to determine if the cell can divide
Between DNA synthesis and mitosis and it is a control checkpoint to determine if the cell can divide
a)
Gap 1 (G1)
b)
S Phase:
c)
Gap 2 (G2)
d)
M Phase:
8.
After fertilization, a mass of (between 100-150) unspecialized cells called ___ form
a)
cardiac cells
b)
embryonic stem cells
c)
adult stem cells
d)
nerve cells
9.
Substances known to cause cancer are called
a)
carcinogens
b)
cyclins
c)
apoptosis
d)
cytokinesis
10.
The phase of cell division in which chromatin condenses into chromosomes is
a)
elephase
b)
anaphase
c)
interphase
d)
prophase
11.
What can result from improper regulation in the cell cycle?
a)
control checkpoints
b)
cancer
c)
apoptosis
d)
mitosis without a prophase
12.
Which of these events does not occur during telophase?
a)
cytoplasm splits in two
b)
chromosomes arrive at cellular poles
c)
chromosomes relax
d)
spindle apparatus disassembles
13.
Some
cells go through a programmed death, this is called
a)
apoptosis
b)
mutation
c)
cancer
d)
diffusion
14.
Which of these is not a stage of the cell cycle?
a)
cytokinesis
b)
interphase
c)
mitosis
d)
photosynthesis
15.
Smaller cells have a (an) ____ ratio of surface area to volume.
a)
lower
b)
higher
c)
equal
d)
new cell
16.
Proteins called ____ bind to enzymes in order to start the cell cycle
a)
lipids
b)
kinases
c)
cyclins
d)
cytokinesis
17.
During what stage of the cell cycle does the cell replicate it's DNA?
a)
G1
b)
G2
c)
Cytokinesis
d)
S
18.
Unspecialized human cells are called-
a)
cancer cells
b)
stem cells
c)
stem cells
d)
mitotic cells
19.
What is cancer caused by?
a)
Damaged to or mutated DNA
b)
Lead poisoning
c)
immune system failure
d)
Eating out to often at Mc Donald's
20.
A cell has 12 chromosomes. How many chromosomes will each daughter cell have?
a)
6
b)
24
c)
48
d)
12
21.
What is one of the purposes of mitosis?
a)
produce new offspring
b)
genetic variation
c)
increase cell volume
d)
replace damaged or worn out cells
22.
A chromosomes that consists of two halves is called
a)
Chromatids
b)
Chromosomes
c)
centromere
d)
Cytokinesis
23.
What phase is shown in the picture?
a)
anaphase 1
b)
prophase
c)
metaphase
d)
telophase
24.
microtubule structure that separates chromosomes during mitosis
a)
cytokinesis
b)
spindle
c)
interphase
d)
binary fission
25.
first phase of mitosis in which chromosomes become visible and nuclear membraine disappears
a)
interphase
b)
metaphase
c)
telophase
d)
prophase
26.
Cells spend most of their time in what phase of their life cycles
a)
prophase
b)
anaphase
c)
metaphase
d)
interphase
27.
Cells in fruit flies have eight chromosomes. How many chromosomes does a new cell produced by mitosis have?
a)
eight
b)
sixteen
c)
four
d)
two
28.
Unlike animal cells, plant cells undergoing mitosis form a ________ between the two new nuclei.
a)
centriole
b)
cell plate
c)
centromere
d)
nucleolus
100 %
