Specialized Cells - Science _ 7 1.3.pptx

Specialized Cells of Plants and Animals

1. 1 C ells

2. 1.3 Specialised cells learn about some specialised animal and plant cells explain how the structure of these specialised cells helps them to carry out their functions .

3. Key words absorb adapted axon capillary cilia ciliated cell dendrite function haemoglobin mucus neurone palisade cell pigment red blood cell root hair cell specialised

4. Getting started With a partner, think of a suitable way to complete each sentence. • Cell membranes … • Cell walls … • A nucleus … • Chloroplasts … Be ready to share your ideas with the rest of the class.

5. Some specialised animal cells Red blood cells are smaller than most other cells in the body.

6. Neurones carry electrical signals from one part of the body to another.

7. Ciliated cells have tiny threads along one edge , like microscopic hairs. These are called cilia .

8. Activity 1.3.1 Structure and function in animal cells Name of cell Function of cell Specialised structure How this helps the cell to carry out its function Red blood cell transports oxygen has haemoglobin in its cytoplasm haemoglobin carries oxygen Neurone

9. Some specialised plant cells Root hair cells are found on the outside of plant roots.

10. Palisade cells are found in the leaves of plants .

11. Questions 3 Suggest why root hair cells do not contain chloroplasts . 4 Water moves through several parts of the root hair cell, as it goes from the soil into the sap vacuole. List these parts, in order.

12. Activity 1.3.2 Structure and function in plant cells Name of cell Function of cell Specialised structure How this helps the cell to carry out its function Root hair cells Palisade cells

13. Summary checklist I can name three kinds of specialised animal cell, and two kinds of specialized plant cell. I can explain how the structure of each kind of specialised cell is related to its function . I can design and construct a table to summarise information.