What are the 2 main parts of the cell cycle and what is happening to the cell in each stage?
The two main parts of the cell cycle are interphase and mitosis. In interphase, the cell is forming and it grows. In mitosis, the cell replicates itself, making two daughter cells.
When during the cell cycle are chromatids duplicated and why is this so important?
Chromatids are duplicated during interphase, which is important because the cells contain nutrients.
About how long does a human skin cell stay in interphase? In mitosis and cytokinesis?
Human skin cells stay in interphase for about 22 hours, while they stay in mitosis and cytokinesis for about 4 hours.
Name and explain the 3 parts of interphase.
The 3 parts of interphase are G1, S phase, and G2. G1 is where the cell decides to divide and starts to gather everything it needs to divide. S phase is where the cell copies the DNA and grows twice its original size. G2 is when the cell checks to make su
What type of cell enters the G0 phase? Give an example.
Cells that leave the cell cycle enter the G0 phase. One example of this would be the heart muscle cells.
Why can't a damaged cell in the brain be replaced?
A damaged cell in the brain can't be replaced because it is in the G0 phase.
Can chromosomes be seen clearly after the G2 phase?
Chromosomes can't be seen clearly after the G2 phase.
During what stage can chromosomes be seen clearly?
Chromosomes can be seen clearly during prophase.
What forms to help attach and move chromatids to the opposite poles of the cell?
Spindles that are formed from centrioles help attach and move chromatids to the opposite poles of the cell.
During what phase of the cell cycle does a lot of protein synthesis take place?
G1 is the phase where a lot of protein synthesis takes place.
Chromosomes are made of what molecule? What is the shape of this molecule?
Chromosomes are made of the molecule called centromeres. The molecule is in a X or V shape.
When (what phase) do chromatids line up at the equator of a cell?
Chromatids line up at the equator of a cell during metaphase.
Do bacteria reproduce by mitosis? Explain your answer.
Bacteria does not reproduce by mitosis because they do not have a nucleus that can split.
When does the nuclear membrane and nucleolus disappear? When do they reappear?
The nuclear membrane and nucleolus disappear during prophase and reappear during telophase.
Explain the difference in cytokinesis of a plant cell and an animal cell.
The difference between cytokinesis in a plant cell and an animal cell is that plant cells build a new cell membrane and cell wall while animal cells pinch in the cell membrane until it splits.