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.

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Blood By the end of the lesson you should be able to:

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Presentation transcript:

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

Cells Basic Unit of life Unicellular- smallest living organism Multicellular- large number of cells Animal, Plant, Bacterial, Fungal ANIMAL CELL

Animal Cell (copy)

Copy and Complete Organelle Function Nucleus Controls what enters and exits the cell Site of chemical reactions Site of aerobic respiration Ribosomes

Specialised Cells Inefficient to all do same job Jobs delegated Specialised cells- adaptions Specialised cells ordered into tissues

Blood An example of tissue (approx) 5 litres Transports useful substances around the body (Oxygen, Carbon Dioxide, Dissolved food, Hormones) Contains specialised cells

Blood Plasma Pale yellow liquid 55% of blood’s total volume Holds blood cells

Red Blood Cells Haemoglobin- Carries Oxygen (Oxy-haemoglobin) Biconcave shape No nucleus Flexible

White Blood Cells Immune System Fights off foreign bodies Shape shifters Far less than RBC

Platelets Small and colourless Disc shaped No nucleus Large numbers Clotting

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

Blood Types https://www.youtube.com/watch?v=xfZhb6lmxjk ABO Blood transfusions RBC- antigens (A, B, AB) White blood cells attack if not recognised https://www.youtube.com/watch?v=xfZhb6lmxjk

Blood types https://www.youtube.com/watch?v=xfZhb6lmxjk

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.