BSC 2010 Exam 4
Where do cells come from? - ✔✔Cells come from other cells through cell division
Do all cells always divide? - ✔✔No, some cells only divide during growth periods
Why do cells divide? - ✔✔1) Grow
2) Dev
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BSC 2010 Exam 4
Where do cells come from? - ✔✔Cells come from other cells through cell division
Do all cells always divide? - ✔✔No, some cells only divide during growth periods
Why do cells divide? - ✔✔1) Grow
2) Development
3) Repair
4) Regeneration
5) Reproduction -> only reason single-celled organisms divide
Cell division in Prokaryotes - ✔✔- All are single-celled
- One chromosome
- Circular DNA
- Copied through replication
Prokaryotes divide through ________ - ✔✔Binary fission
Mitosis and Meiosis are not the same as _____ - ✔✔Binary fission
Binary fission consists of - ✔✔Replicating the DNA and then extending the cell until it breaks
and two cells are formed
Can eukaryotic cells divide through binary fission? - ✔✔No, they are more complicated and
have more than one chromosome and membrane bound organelles that need to be separated
equally across the two new cells.
How do organelles divide? - ✔✔1) membrane-bound organelles like mitochondria and
chloroplasts divide on their own through a specific division process.
2) ER and Golgi don't divide, the process consists of the membrane constituents coming apart
into small parts when the cell divides. It later reintegrates.
How are the multiple chromosomes allocated throughout the cells? - ✔✔Eukaryotic cell
divisions
Meiosis - ✔✔It is mainly used for reproduction produces halves of the original chromosome
number of cells.
Mitosis - ✔✔Process commonly used for cell growth, repair and regeneration of other cells.
What is the cell cycle? - ✔✔Tightly regul
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