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Only in an animal cell-
Nucleus- Contains genetic material that contains the activities of the

Cytoplasm- Gel-like substance where most of the chemical reactions
happen, enzymes control these reactions.

Cell Membrane- Holds the cell together and controls what goes in
and out of the cell.

Mitochondria- Respiration happens here;…

Page 2

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Osmosis- The movement of water molecules across a partially
permeable membrane from a region of high concentration to a
region of low concentration.

Plants Need-

Nitrates make amino acids which are then used to make proteins.

Magnesium is needed to make chlorophyll which is needed for

Potassium + Phosphates…

Page 3

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Best Conditions for Enzymes- Body Temp (37oC) and normally
pH 7. Some have adapted to be able to still work at different
pH's such as Pepsin in the stomach which works best at pH 2.

Respiration- Is the process of releasing energy from glucose
which goes on in every cell.…

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Bile- Produced in the liver, stored in the gall bladder before it's
released into the small intestine. It emulsifies fats so they have a
much bigger surface area for the enzyme lipase to work on-
which makes digestion faster.

Homeostasis- The maintenance of a constant internal

Six main things…

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XY Chromosomes- All men have this chromosome. The Y
chromosome causes male characteristics.

XX Chromosomes- All women have this chromosome. The XX
combination allows female characteristics to develop.

Genetic diagrams- show the possible combinations of
Gametes. There is a 1:1 ratio whether a foetus will be a boy or a…


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