Unit 1: Cell Biology Section a: Cell Structure and Function

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Presentation transcript:

Unit 1: Cell Biology Section a: Cell Structure and Function National 4/5 Biology Unit 1: Cell Biology Section a: Cell Structure and Function

What do you remember? A B C D

What are we learning today? We are learning to: recognise the difference between a plant and an animal cell Success criteria: I can name the structures of plant and animal cells I can state the functions of the structures of a plant and animal cell I can recognise diagrams and explain the differences between a plant and animal cell

Some starter information Cells are the basic units of life All living organisms contain cells There are many different types of cells Unicellular organisms are made up of just one cell Multicellular organisms are made up of many cells Cells can be stained to see cell structures more clearly

Animal cell structure 1. Cytoplasm 2. Ribosome 3. Nucleus 4. Mitochondria 5. Cell membrane

Structure and function Cytoplasm Site of biochemical reactions Ribosome Site of protein synthesis Nucleus Contains genetic information. Control centre of the cell Mitochondria Site of aerobic respiration Cell membrane Controls what enters and exits the cell

Cheek epithelial cells: Example of animal cell

Plant cell structure 1. Mitochondria 2. Vacuole 3. Chloroplast 4. Ribosome 5. Nucleus 6. Cytoplasm 7. Cell membrane 8. Cell wall

Structure and function Mitochondria Site of aerobic respiration Vacuole Contains watery cell sap Chloroplast Site of photosynthesis Ribosome Site of protein synthesis Nucleus Contains genetic information. Control centre of the cell Cytoplasm Site of biochemical reactions Cell membrane Controls what enters and exits the cell Cell wall Boundary round plant cell, maintains cell shape. Freely permeable

Examples of plant cells Onion Rhubarb Elodea What do all these cells appear to have in common?

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