3.8: The cell cycle Flashcards
Only some cells in multicellular organisms retain the ability to do what?
Only some cells in multicellular organisms retain the ability to divide
Only some cells in multicellular organisms retain the ability to divide.
Those that do not divide continuously undergo what?
Those cells that do not divide continuously undergo the cell cycle
The cell cycle
The cell cycle is a regular cycle of division separated by periods of cell growth
The cell cycle has how many stages?
The cell cycle has 3 stages:
- Interphase
- Nuclear division
- Division of the cytoplasm (cytokinesis)
The cell cycle has 3 stages: Interphase, nuclear division and division of the cytoplasm (cytokinesis).
What occupies most of the cell cycle?
Interphase occupies most of the cell cycle
The cell cycle has 3 stages: Interphase, nuclear division and division of the cytoplasm (cytokinesis).
- Interphase occupies most of the cell cycle and is sometimes known as the what phase?
Interphase:
- Occupies most of the cell cycle
- Is sometimes known as the resting phase
The cell cycle has 3 stages: Interphase, nuclear division and division of the cytoplasm (cytokinesis).
- Interphase occupies most of the cell cycle and is sometimes known as the resting phase, because what?
Interphase:
- Occupies most of the cell cycle
- Is sometimes known as the resting phase, because no division takes place
The cell cycle has 3 stages: Interphase, nuclear division and division of the cytoplasm (cytokinesis).
- Nuclear division is when the nuclear divides either into what?
Nuclear division is when the nuclear divides either into:
- 2 (mitosis)
Or,
- 4 (meiosis)
The cell cycle has 3 stages: Interphase, nuclear division and division of the cytoplasm (cytokinesis).
- Division of the cytoplasm (cytokinesis) follows what?
Division of the cytoplasm (cytokinesis) follows nuclear division
The cell cycle has 3 stages: Interphase, nuclear division and division of the cytoplasm (cytokinesis).
- Division of the cytoplasm (cytokinesis) follows nuclear division and is the process by which the cytoplasm divides to do what?
Division of the cytoplasm (cytokinesis) follows nuclear division and is the process by which the cytoplasm divides to produce:
- 2 new cells (mitosis)
Or,
- 4 new cells (meiosis)
The length of a complete cell cycle what amongst organisms?
The length of a complete cell cycle varies greatly amongst organisms
The length of a complete cell cycle varies greatly amongst organisms.
Typically, a mammalian cell takes how long to complete a cell cycle?
Typically, a mammalian cell takes about 24 hours to complete a cell cycle
The length of a complete cell cycle varies greatly amongst organisms.
Typically, a mammalian cell takes about 24 hours to complete a cell cycle, of which how much is interphase?
Typically, a mammalian cell takes about 24 hours to complete a cell cycle, of which about 90% is interphase
The length of a complete cell cycle varies greatly amongst organisms.
Typically, a mammalian cell takes about 24 hours to complete a cell cycle, of which about 90% is interphase.
The variations in mass of a diploid cell and the DNA within it during the cell cycle:
The mass of DNA in arbitrary units from 2 at 0 hours does what and then does what at 6 hours?
The mass of DNA in arbitrary units from 2 at 0 hours:
- Stays steady
- Then begins to increase at 6 hours
The length of a complete cell cycle varies greatly amongst organisms.
Typically, a mammalian cell takes about 24 hours to complete a cell cycle, of which about 90% is interphase.
The variations in mass of a diploid cell and the DNA within it during the cell cycle:
The mass of DNA in arbitrary units from 2 at 0 hours stays steady and then begins to increase at 6 hours to what at how many hours?
The mass of DNA from 2 at 0 hours stays steady and then begins to increase at 6 hours to 4 at 9 hours
The length of a complete cell cycle varies greatly amongst organisms.
Typically, a mammalian cell takes about 24 hours to complete a cell cycle, of which about 90% is interphase.
The variations in mass of a diploid cell and the DNA within it during the cell cycle:
The mass of DNA in arbitrary units from 2 at 0 hours stays steady and then begins to increase at 6 hours to 4 at 9 hours.
The mass of DNA from 4 then stays steady until how many hours?
The mass of DNA from 4 then stays steady until 12 hours
The length of a complete cell cycle varies greatly amongst organisms.
Typically, a mammalian cell takes about 24 hours to complete a cell cycle, of which about 90% is interphase.
The variations in mass of a diploid cell and the DNA within it during the cell cycle:
The mass of DNA in arbitrary units from 2 at 0 hours stays steady and then begins to increase at 6 hours to 4 at 9 hours.
The mass of DNA from 4 then stays steady until 12 hours, when it does what?
The mass of DNA from 4 then stays steady until 12 hours, when it decreases to 2
The length of a complete cell cycle varies greatly amongst organisms.
Typically, a mammalian cell takes about 24 hours to complete a cell cycle, of which about 90% is interphase.
The variations in mass of a diploid cell and the DNA within it during the cell cycle:
The mass of DNA in arbitrary units from 2 at 0 hours stays steady and then begins to increase at 6 hours to 4 at 9 hours.
The mass of DNA from 4 then stays steady until 12 hours, when it decreases to 2.
Then, the mass of DNA from 2 stays steady until how many hours?
Then, the mass of DNA from 2 stays steady until 18 hours
The length of a complete cell cycle varies greatly amongst organisms.
Typically, a mammalian cell takes about 24 hours to complete a cell cycle, of which about 90% is interphase.
The variations in mass of a diploid cell and the DNA within it during the cell cycle:
The mass of DNA in arbitrary units from 2 at 0 hours stays steady and then begins to increase at 6 hours to 4 at 9 hours.
The mass of DNA from 4 then stays steady until 12 hours, when it decreases to 2.
Then, the mass of DNA from 2 stays steady until 18 hours.
After this, the mass of DNA does what until how many hours?
After this, the mass of DNA increases to 4 again until 20 hours
The length of a complete cell cycle varies greatly amongst organisms.
Typically, a mammalian cell takes about 24 hours to complete a cell cycle, of which about 90% is interphase.
The variations in mass of a diploid cell and the DNA within it during the cell cycle:
The mass of DNA in arbitrary units from 2 at 0 hours stays steady and then begins to increase at 6 hours to 4 at 9 hours.
The mass of DNA from 4 then stays steady until 12 hours, when it decreases to 2.
Then, the mass of DNA from 2 stays steady until 18 hours.
After this, the mass of DNA increases to 4 again until 20 hours.
The mass of DNA from 4 then does what?
The mass of DNA from 4 then:
- Stays steady until 24 hours
- Decreases to 2 again
The length of a complete cell cycle varies greatly amongst organisms.
Typically, a mammalian cell takes about 24 hours to complete a cell cycle, of which about 90% is interphase.
The variations in mass of a diploid cell and the DNA within it during the cell cycle:
The mass of DNA in arbitrary units from 2 at 0 hours stays steady and then begins to increase at 6 hours to 4 at 9 hours.
The mass of DNA from 4 then stays steady until 12 hours, when it decreases to 2.
Then, the mass of DNA from 2 stays steady until 18 hours.
After this, the mass of DNA increases to 4 again until 20 hours.
The mass of DNA from 4 then stays steady until 24 hours and decreases to 2 again.
The mass of the cell in arbitrary units is what at 0 hours?
The mass of the cell in arbitrary units is 3 at 0 hours
The length of a complete cell cycle varies greatly amongst organisms.
Typically, a mammalian cell takes about 24 hours to complete a cell cycle, of which about 90% is interphase.
The variations in mass of a diploid cell and the DNA within it during the cell cycle:
The mass of DNA in arbitrary units from 2 at 0 hours stays steady and then begins to increase at 6 hours to 4 at 9 hours.
The mass of DNA from 4 then stays steady until 12 hours, when it decreases to 2.
Then, the mass of DNA from 2 stays steady until 18 hours.
After this, the mass of DNA increases to 4 again until 20 hours.
The mass of DNA from 4 then stays steady until 24 hours and decreases to 2 again.
The mass of the cell in arbitrary units is 3 at 0 hours.
Then, the mass of the cell doubles to what at how many hours?
Then, the mass of the cell doubles to 6 at 12 hours
The length of a complete cell cycle varies greatly amongst organisms.
Typically, a mammalian cell takes about 24 hours to complete a cell cycle, of which about 90% is interphase.
The variations in mass of a diploid cell and the DNA within it during the cell cycle:
The mass of DNA in arbitrary units from 2 at 0 hours stays steady and then begins to increase at 6 hours to 4 at 9 hours.
The mass of DNA from 4 then stays steady until 12 hours, when it decreases to 2.
Then, the mass of DNA from 2 stays steady until 18 hours.
After this, the mass of DNA increases to 4 again until 20 hours.
The mass of DNA from 4 then stays steady until 24 hours and decreases to 2 again.
The mass of the cell in arbitrary units is 3 at 0 hours.
Then, the mass of the cell doubles to 6 at 12 hours and then does what?
Then, the mass of the cell:
- Doubles to 6 at 12 hours
- Then halves to 3
The length of a complete cell cycle varies greatly amongst organisms.
Typically, a mammalian cell takes about 24 hours to complete a cell cycle, of which about 90% is interphase.
The variations in mass of a diploid cell and the DNA within it during the cell cycle:
The mass of DNA in arbitrary units from 2 at 0 hours stays steady and then begins to increase at 6 hours to 4 at 9 hours.
The mass of DNA from 4 then stays steady until 12 hours, when it decreases to 2.
Then, the mass of DNA from 2 stays steady until 18 hours.
After this, the mass of DNA increases to 4 again until 20 hours. The mass of DNA from 4 then stays steady until 24 hours and decreases to 2 again.
The mass of the cell in arbitrary units is 3 at 0 hours.
Then, the mass of the cell doubles to 6 at 12 hours and then halves to 3.
After this, the mass of the cell from 3 at 12 hours does what at how many hours?
After this, the mass of the cell from 3 at 12 hours doubles to 6 again at 24 hours
The length of a complete cell cycle varies greatly amongst organisms.
Typically, a mammalian cell takes about 24 hours to complete a cell cycle, of which about 90% is interphase.
The variations in mass of a diploid cell and the DNA within it during the cell cycle:
The mass of DNA in arbitrary units from 2 at 0 hours stays steady and then begins to increase at 6 hours to 4 at 9 hours.
The mass of DNA from 4 then stays steady until 12 hours, when it decreases to 2.
Then, the mass of DNA from 2 stays steady until 18 hours.
After this, the mass of DNA increases to 4 again until 20 hours.
The mass of DNA from 4 then stays steady until 24 hours and decreases to 2 again.
The mass of the cell in arbitrary units is 3 at 0 hours.
Then, the mass of the cell doubles to 6 at 12 hours and then halves to 3.
After this, the mass of the cell from 3 at 12 hours doubles to 6 again at 24 hours, then does what?
After this, the mass of the cell from 3 at 12 hours:
- Doubles to 6 again at 24 hours
- Then decreases to 3 again
Cancer
Cancer is a group of diseases (around 200 in total) caused by a growth disorder of cells
Cancer is a group of diseases (around 200 in total) caused by a growth disorder of cells.
Cancer is the result of damage to the genes that do what?
Cancer is the result of damage to the genes that regulate:
- Mitosis
- The cell cycle
Cancer is a group of diseases (around 200 in total) caused by a growth disorder of cells.
Cancer is the result of damage to the genes that regulate mitosis and the cell cycle.
What does this lead to?
This leads to uncontrollable:
- Growth
- Division
of cells
Cancer is a group of diseases (around 200 in total) caused by a growth disorder of cells.
Cancer is the result of damage to the genes that regulate mitosis and the cell cycle.
This leads to uncontrollable growth and division of cells.
As a consequence, what develops?
As a consequence, a tumour develops