WorksheetsCell division - part B Review
Total questions: 19
Worksheet time: 10mins
Which of the following changes in concentration throughout the cell cycle?
Cell Cycle Target Proteins
Cyclin Dependent Kinases (CDKs)
Cyclins
Kinases
What does the cell do if it passes the G1 Checkpoint?
Starts to replicate DNA
Starts to supercoil DNA
Starts to breakdown the nucleus
Starts to form the mitotic spindle
Cyclin E is involved with:
Initiating Mitosis
Initiating cytokinesis
Preparing the DNA for replication
Making sure microtubules are attached to kinetochores
Which cyclin is best represented in the following graph:
A →B→D→E
E→D→A→B
D→E→B→A
D→E→A→B
Tim Hunt's discovery of cyclins is a good example of serendipity in science, because...
he had to think outside the box to discover them
he wasn't looking for cyclins when he discovered them
their discovery benefited humanity but also caused his death
it was later shown that he stole the material
What ties viruses, chemicals and radiation together in causing cancer?
They all can create mutations in genes
The cellular damage they cause is always inherited
They are all infectious
All the above are correct
Cancers metastasize throughout the body by:
The mutation of one of dozens of cell cycle control genes
An accumulation of cell cycle control gene mutations
By hijacking white blood cells
Discarding their nucleus
Tumor Suppressor Genes are _________ because they _______________ cell cycle progress
Bad / Speed Up
Bad / Slow Down
Good / Speed Up
Good / Slow Down
This graph seems to show what type of correlation between egg consumption & cancer mortality
Direct
Indirect
No correlation
Negative
Which of the following are major causes of lung cancer?
Viruses
Pollution
Heredity
All of the above
How did epidemiology help connect smoking to lung cancer?
Through experimentation
Through data analysis
Through double blind studies
Through computer models
Risks of Vitamin D deficiency tend to __________ as skin cancer risks ______________
decrease / increase
decrease / decrease
increase / increase
increase / decrease
When in Mitosis does the M Cell Cycle Checkpoint occur?
Prophase
Metaphase
Anaphase
Telophase
UV Radiation can be absorbed by a cellular protein known as:
DNA
melatonin
melanin
keratin
Why does chemotherapy cause nausea and a person's hair to fall out?
The dying tumor cells cause these effects on the body
These are effects of the cancer and not from the chemotherapy
The chemotherapy stops all cell division within a cell
Chemotherapy kills all rapidly dividing cells in the body
Which is Interphase?
A
C
D
F
Identical copies of a chromosome held together by a centromere
sister chromatids
chromatin
chromosome
centromere
True or false. Cancer begins when mutations disrupt the normal cell cycle, causing cells to divide in an uncontrolled way.
True
False
The cell cycle is made up of 2 main stages, interphase and mitosis. What are the phases of interphase?
Prophase, Metaphase, Anaphase, Telophase
G1, S, G2
S1, G, S2
G1, G0, G2
