Specialised cells What different types of cell are

Specialised cells What different types of cell are there? Starter: list as many types of cell as you can. What different types of cell are there?

Learning Outcomes ü list a variety of proteins, outlining their appearance and function ü describe how body cells in an organism contain the same genes ü recall that many genes in a particular cell are switched off ü outline the one gene one protein theory What different types of cell are there?

Key word call my bluff. • Specialised cell What different types of cell are there?

Key word call my bluff. • Specialised cell – a cell that has differentiated to have features that allow it to do a particular job. • Specialised cell – the most important cell in your body. • Specialised cell – a type of cell that makes cells special. What different types of cell are there?

Why are the players in a rugby union team different shapes and sizes? Think Pair Share – Is this a good model for specialised cells? Why? What different types of cell are there?

Check point • I can say what a specialised cell is. Yes Thumbs up No Thumbs down Success criteria State what a specialised cell is. What different types of cell are there?

Task • Complete the card sort to help you match the picture of the specialised cell, with all the information about it. • Use the text book and the posters round the room for help. Success criteria Recognise some specialised cells from plants and animals. What different types of cell are there?

Check point • Which of these is not a human specialised cell? 1) Fat cell 2) Root hair cell 3) Brain cell 4) Egg cell What different types of cell are there?

Think – Pair - Share If all our cells are genetically identical why do we have so many different types of cell?

Think – Pair – share How many proteins are found in this cell? Stem Cell Gene

Switching genes on and off Stem Cell Muscle Cell on off Skin Cell Brain Cell How many proteins does each cell have?

Stem cells and differentiation. Cells that make up embryos are called stem cells. These are unspecialised but can turn into any type of cell if they get the correct message. A muscle cell is the same as a heart cell but different genes have been turned on/off making it do different things.

Proteins If you remove all the water from a human body, 90% of what remains is protein. What types of protein are there? Read the information, highlight the key words and use it to complete the questions.

6 mark Q Humans all develop from 1 cell. Explain in detail, how it is possible for a human to end up with so many types of cell. Task: answer this question and write a marking scheme to go with it. (1 mark will be for SPAG)

Make a revision card for specialised cells.

Competition time - plenary • Specialised cell Bingo Draw a box like this … Into each box write 1 of the following words. White blood cell Brain cell Nerve cell Red blood cell Fat cell Sperm Cell Egg cell Ciliated Cell Cone cell Fat cell Root hair cell Palisade cell Listen out for the job of each cell you have chosen to tick it off in Bingo.