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Published byBridget Marsh Modified over 6 years ago
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Learning Intention To be able to label an animal cell and describe the function of organelles To explain what is meant by the term “Specialised Cell” To describe the role of the cells found in blood To be able to explain why we have different blood types
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Cells Basic Unit of life Unicellular- smallest living organism
Multicellular- large number of cells Animal, Plant, Bacterial, Fungal ANIMAL CELL
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Animal Cell (copy)
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Copy and Complete Organelle Function Nucleus
Controls what enters and exits the cell Site of chemical reactions Site of aerobic respiration Ribosomes
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Specialised Cells Inefficient to all do same job Jobs delegated
Specialised cells- adaptions Specialised cells ordered into tissues
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Blood An example of tissue (approx) 5 litres
Transports useful substances around the body (Oxygen, Carbon Dioxide, Dissolved food, Hormones) Contains specialised cells
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Blood Plasma Pale yellow liquid 55% of blood’s total volume
Holds blood cells
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Red Blood Cells Haemoglobin- Carries Oxygen (Oxy-haemoglobin)
Biconcave shape No nucleus Flexible
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White Blood Cells Immune System Fights off foreign bodies
Shape shifters Far less than RBC
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Platelets Small and colourless Disc shaped No nucleus Large numbers
Clotting
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Specialised cells in blood: Copy and Complete
Type of Cell Description Function Yellow like fluid which makes up 55% of the total blood volume All other cells are suspended in it Red Blood Cells Bi-concave shape and no nucleus to increase surface area Can change their shape Platelets Small, colourless, no nucleus
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Blood Types https://www.youtube.com/watch?v=xfZhb6lmxjk ABO
Blood transfusions RBC- antigens (A, B, AB) White blood cells attack if not recognised
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Blood types
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Blood Types A person’s blood type is determined by the presence or absence of the antigens A and B, which are carried on the surface of the red cells.
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