1. Specialised cells
LO: to recognize that some cells have specialised structures to do special functions
Some cells come in different shapes and sizes because they have special jobs to do in the body and plants
With your partner discuss and try to make a list of as many specialised cells as you can. A merit for the pair that can list the most. Use the pictures to help you

2. Cell Wall
Nucleus
Vacuole
Chloroplast
Cell Membrane
Cytoplasm

3. Look at the different types of specialised cells
and discuss how each one is adapted to it’s function
Epithelial cell
The sperm cell
Video- epithelia cells
Look whos talking video
The female egg cell
Root hair cell
15/04/2018

4. Red blood cell Palisade (leaf) cell Nerve (neurone) cell
Video- epithelia cells
Nerve (neurone) cell

6. Sex Cells - Sperm In males, the sex cells are called sperm.
Sperm are produced in sex organs called testes.
15/04/2018 6

7. An egg is so big that this is how small a sperm looks next to it.
Sex cells – egg (ovum)
In females, the sex cells are called eggs or ova.
Eggs are produced in sex organs called ovaries.
nucleus containing
chromosomes
cytoplasm
membrane
jelly coat
An egg is so big that this is how small a sperm looks next to it. 7

8. Photograph of many sperms using a special microscope
15/04/2018

9. Photograph of egg surrounded by sperm using a
special microscope.

10. TASK: Cut out the description and diagram then match them up in your book under the headings specialised animal cell or specialised plant cell
Specialised Animal cells
Specialised Plant cells
DIAGRAM
FUNCTION
DIAGRAM
FUNCTION

11. Match the cell to the job
7A Building living things - Different cells for different jobs
Cell plenary
Match the cell to the job 1 2
Red blood cell
Nerve cell
Egg cell
Palisade (leaf) cell
Root hair cell 3
TEACHER’S NOTES
Answers:
Job No1 – Nerve cell
Job No2 – Egg cell
Job No3 – Palisade cell
Job No4 – Root hair cell
Job No5 – Red blood cell 4 5

12. 12

13. Photograph of many sperms using a special microscope
15/04/2018

14. Photograph of egg surrounded by sperm using a
special microscope.

15. Sperm vs Egg Put the keywords below into two groups: i) Sperm ii) Egg
Small in size
Found in males
Has a food store
Swim using a tail
Large in size
No food store
Found in females
Cannot move much
Millions made
Only a few made

16. Specialised cells CELL DIAGRAM Function Specialisation Sperm Egg
A tail and coating on the head
Reproduction
Sperm
Egg
Epithelial Cell
Root hair cell
Reproduction
Contains food
To get rid of dust and mucus
Hairs called cilia
To absorb water and minerals from soil
Long and thin

17. Homework Designing Cell X Due Wednesday (next lesson)
Design a special plant cell that can move from plant to plant by grabbing on to passing animals
Add descriptions and labels to your drawing

18. Ask the expert!

19. Specialised cells CELL DIAGRAM Function Specialisation Sperm Egg
Epithelial Cell
Root hair cell