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Honors Biology Chapter 10 Test 10.2 The Process of Cell Division
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- 1chromosomesstructures in the cell that contain the genetic information (DNA) that is passed from one generation to the next- long strands of DNA (genetic info)
- 2In Prokaryoteshave no nucleus so DNA floats in cytoplasm sing-circular structure
- 3In Eukaryotesmuch more DNA than prokaryote held in coiled strand by proteins called histones this protein/chromosome coil is called chormatin # of choromes determine species stay in own kingdom LONG THIN CHROMATIN
- 4Cell Cycleperiod from the beginning of one mitosis to the beginning of the next (series of events cells go through as they grow, prepare to divide, and divide to form daughter cells
- 5In ProkaryotesThe cell cycle is called binary fission
occurs when cells reach a certain size
not well understood
cell copies DNA and organelles then splits in half - 6In Eukaryotes4 phases
amount of time spent in each phase depends on cell type - 7Interphasecell spends most time in this phase
- 8G1 phasecells are growing and increasing in size, cell is actively working
- 9S PhaseDNA is replicated
- 10G2 Phaseorganelles are replicated
- 11Mitosisthe cell is dividing into two daughter cells
- 12Prophasethe chromosomes condense, the nuclear envelop breaks down and the spindle forms.
- 13MetaphaseThe chormosome line up on the central plane of the cell
- 14AnaphaseThe centromeres divide, and the chromatids move toward opposite poles.
- 15TelophaseThe chormosomes uncoil and a new nuclear envelop forms.The spindle fibers disappear.
- 16CytokenisisA part of telophase
The cytoplasm pinches in half
Each daughter cell contains an identical set of chromosomes
In plant cells the cell plate forms to create a new cell wall - 17IPMAT1. Interphase
2. Prophae
3. Metaphase
4. Anaphase
5. Telophase
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