Cheatography
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VCE Units 1 & 2. Area of study 1.
This is a draft cheat sheet. It is a work in progress and is not finished yet.
Basic Cell Theory
Living Organisms can only exist where: |
- an energy source is available |
- liquid water is available |
- the chemical building block necessary for life exist |
- stable environmental conditions exist |
MRS GREND
M movement |
R respiration |
S sensitivity |
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G growth |
R reproduction |
E excretion |
N nutrition |
D deoxyribonucleic acid (DNA) |
Tenets of cell theory
All organisms are composed of cells |
All cells come from pre-existing cells |
The cell is the basic organization of an organism |
Eukaryotes vs Prokaryotes
Plant |
Bacteria |
Animal |
Archaea |
Protista |
Fungi |
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Cell Size
Cells are limited in size by their ability to exchange substances with their environment. |
Every living cell must maintain its internal environment. |
The cells relies on the plasma membrane to exchange the necessary material with its surroundings at an appropriate rate. |
Surface Area to Volume ratio
SA:V is a measure of the critical balance. |
As the volume increases the metabolic needs increase too. The plasma membranes ability to meet these metabolic demands increases but not at the same rate. |
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