Font size
WorksheetsUnit 5 Cells Stability and Change
Total questions: 14
Worksheet time: 11mins
What are the most important mechanisms in cell cycle control?
Cyclins
Kinases
Proteins
Cyclin dependent kinases
Where are the main check/restriction points in the cell cycle?
S/M
G0
G1/S
G2/M
Where do the checkpoints receive information from?
The Plasma Membrane
Cell DNA
Intra and extracellular processes
The Nucleous
If the cell does not recieve a 'GO' signal at G1/S where will it go?
Straight to M
To G0/resting phase
To G2
Stays where it is
If the cell does not recieve a 'GO' signal at G2/M phase what will happen?
It will carry on cell division
The final stages of cell divison will not take place
It will return to G0/resting phase
It will go back to S phase
What are protein kinases?
Enzymes that occur throughout the body
Lipids that occur throughout the body
Regulatory proteins occurring throughout the body
Regulatory proteins occurring outside the body
When a protein kinase is able to bind with a cyclin they form a......
Miotic spindle
Anaphase promoting complex
Miotic promoting factor
Cyclin promoting factor
What is a Kinetochore?
A yummy ice cream
A protein structure within the centromere where spindle fibres attach
Part of the cytoskeleton
Kinetic energy that does your chores
During Mitosis and Meiosis kinetochores are responsible for....
Starting, controlling and supervising chromosomes in cell division
Starting, controlling and supervising the nucelus in cell division
Starting, controlling and finishing chromosomes in cell division
Stopping chromosomes moving in cell division
During anaphase further cell divsion will not proceed until....
The kinetochore releases miotic promoting factor
The nuclear envelope disappears
The kinetochore releases anaphase promtoing complex
Cells will only divide when they have sufficent growth factors to sustain new cells. Production of these growth factors is stimulated by....
Cylin dependent kinases
Extracellular cytokines
Intracellular signalling
Communication factors
What is an example of a permanent cell?
Epithelial cells
Renal tubular cells
Cardiac Myocytes
Hepatocytes
What is an example of a labile cell?
Epipthelial cells
Cardiac Myocytes
Renal tubular cells
Red blood cells
What is an example of a stable cell?
Renal tubular cells
Epithelial
Red blood cells
Cardiac Myocytes
