Cells (Continuity and change) mind map

Each branch is one subtopic. Read it out loud and try to explain every word.

Cells (Continuity and change) mind map · IB Diploma Biology SL · clockitwithsci.com

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Cells (Continuity and change)

Cell and nuclear division
- Cytokinesis
  - Animal: actin–myosin ring
  - Plant: vesicles build wall
  - Unequal: oogenesis, yeast budding
- Before division
  - DNA replication: two chromatids
  - Histones supercoil DNA
  - Microtubules and motors move
- Mitosis
  - Prophase, metaphase
  - Anaphase, telophase
  - Two identical nuclei
- Meiosis
  - Diploid to four haploid
  - Homologues then chromatids separate
  - Crossing over, random orientation
- Non-disjunction
  - Trisomy 21
  - Down syndrome
Water potential
- Solvation
  - Polar water
  - Ions attract δ+ or δ−
  - Hydrogen bonds with solutes
- Osmosis
  - Towards higher solute concentration
  - Hypo-, hyper-, isotonic
  - Isotonic: dynamic equilibrium
- Plant tissue practical
  - Percentage change in mass
  - Zero change: isotonic point
  - Standard error bars
- No cell wall
  - Burst or crenate
  - Contractile vacuoles
  - Isotonic tissue fluid
- Cell wall
  - Turgor pressure
  - Plasmolysis
- Medical uses
  - Intravenous fluids
  - Transplant organs