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Worksheetscell cycle control
Total questions: 20
Worksheet time: 40mins
Which molecules act as gatekeepers for each checkpoint of the cell cycle?
p53 gene
cyclins and cycline-dependent kinases
thyroid hormones
What is the purpose the the cell cycle checkpoints?
To repair damaged cells before they enter cell division.
To remove damaged cells from an organism.
How many cell cycle checkpoints are there?
1
2
3
4
What is the first checkpoint of the cell cycle?
Mitosis checkpoint
G1 checkpoint
G2 checkpoint
When is apoptosis initiated?
When DNA damage is repaired.
When cells are removed from the cell cycle.
When DNA damage cannot be repaired.
Name the 3 checkpoints of the cell cycle
Anaphase checkpoint, mitosis/metaphase checkpoint, and telophase checkpoint
Interphase checkpoint, S phase checkpoint, and M phase checkpoint
G1 checkpoint, G2 checkpoint, and S phase checkpoint
G1 checkpoint, G2 checkpoint, and mitosis/metaphase checkpoint
Which is a function of cyclins?
Cyclins are carbohydrates that regulate DNA replication during the mitosis phase of the cell cycle.
Cyclins are glycoproteins that repair DNA in the beginning of cell cycle.
Cyclins are proteins that regulate when and how often a cell divides.
First stage of the cell cycle, during which a cell grows, matures, and replicates its DNA
anaphase
cytokinesis
mitosis
interphase
Condensed DNA containing structure that carries genetic material from one generation to another.
chromatin
carcinogen
sister chromatid
chromosome
A disorder in which some of the body's cells lose the ability to control growth.
growth factor
human growth hormone
cancer
tumor
Mass of rapidly dividing cells that can damage surrounding tissue.
growth factor
human growth hormone
cancer
tumor
Apoptosis is
the process of programmed cell death
the process of programmed cell growth
the process of programmed cell birth
the process of programmed cell regulation
Cyclin is a family of proteins that regulates what?
Mitosis
Meiosis
Cell Cycle
Interphase
Eukaryotic cells spend most of their cell cycle in which phase?
interphase
prophase
metaphase
anaphase
The diploid chromosome compliment of human somatic cell consists of how many chromosomes?
14
23
46
58
Mature human muscle cells and nerve cells
remain undifferentiated unless an injury occurs
become cancerous more easily
continue to divide throughout their life
are permanently in a state of non-division
