AQA A-Level New specification -3.2.2 All cells arise from other cells Complete Bundle

AQA A-Level New specification -3.2.2 All cells arise from other cells Complete Bundle
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All lessons required for this unit are in this bundle.

4 x lessons, past paper questions, required practical 2 included with follow -up questions

L1 - The cell cycle
L2 -Mitosis
L3 -L4 -RP 2

3.2.2 All cells arise from other cells
Within multicellular organisms, not all cells retain the ability to
divide.
Eukaryotic cells that do retain the ability to divide show a cell cycle.
• DNA replication occurs during the interphase of the cell cycle.
• Mitosis is the part of the cell cycle in which a eukaryotic cell
divides to produce two daughter cells, each with the identical
copies of DNA produced by the parent cell during DNA
replication.
The behaviour of chromosomes during interphase, prophase,
metaphase, anaphase and telophase of mitosis. The role of spindle
fibres attached to centromeres in the separation of chromatids.
Division of the cytoplasm (cytokinesis) usually occurs, producing
two new cells.