Specialised cells Learning objectives Understand that cells may

Specialised cells Learning objectives: • Understand that cells may be specialised to carry out a particular function. • Relate the structure of a specialised cell to its function. 1 3 6 2 4 5 7 Task 1: Name these specialised cells

Specialised cells 1 3 6 2 4 5 7 1. Ciliated epithelial cell (trachea) 2. Neurone 3. Red blood cell 4. Egg cell 5. Sperm cell 6. Palisade cell 7. Root hair cell

Specialised cells As the developing organisms grow, their cells become specialised to carry out a particular function. This specialisation is under the control of genes, and is called differentiation.

Specialised cells Task 2: • Select a group of 3 • Select a cell type. • Construct a presentation about the structure and function of your specialised cell. • You will present today and it will be graded. Criteria: 1. Biologically accurate content of function and specialised features the cell has. 2. Correct level of knowledge (IGCSE) 3. Maximum of 4 minutes 4. CREATIVITY!

SPERM Sperm are male sex cells, produced by testes within, Penetration & fertilisation of the egg is their thing! Enzymes in their head to reach the egg inside, Really long tail, and a shape that’s so streamlined, Mitochondria in abundance, to release energy for swimming!

Thumbs up or down Learning objectives: • Understand that cells may be specialised to carry out a particular function. • Relate the structure of a specialised cell to its function.

Specialised cells Task 3: • Presenters: present your specialised cell according to criteria below. Be prepared to answer questions. Criteria: 1. Biologically accurate content of function and specialised features the cell has. 2. Correct level of knowledge (IGCSE) 3. Maximum of 4 minutes 4. CREATIVITY! • Others: Make notes on each of the specialised cells using the table format below. Be prepared to ask questions. Cell type Diagram Functions Adaptations

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