This document discusses several types of specialized cells and their functions. It introduces red blood cells which carry oxygen through the body, white blood cells which defend against microorganisms, sperm and egg cells which contain DNA to pass onto offspring during fertilization. Additionally, it mentions root hair cells which absorb water in plants and guard cells which open and close on leaves to control water loss. The document provides examples of how cells make up tissues, organs, organ systems and complete organisms. It poses questions at the end for the reader.

1. Specialised Cells
Target
To know about some specialised
cells
Wednesday, February 8, 2017

2. Specialised Cells
• Some cells are special shapes and have
special jobs
• Can you think of any examples?

3. Red Blood Cell
• Carries oxygen
around the body
• No nucleus and
large surface area
• Is found in the
blood

4. White Blood Cell
• Defends the body
against
microorganisms

5. Sperm Cell
• Is the male sex cell
• Contains DNA from the male to pass onto
the baby
• Fertilises the egg cell

6. Egg Cell (Ovum)
• The female sex cell
• Contains DNA from
the female to pass
onto the baby
• Is fertilised by the
sperm cell

7. Root hair cell
• Is where absorption of water occurs in
plants
• Has a large surface area

8. Guard Cell
• Are present on the
underside of
leaves
• Can open or close
to reduce water
loss

10. Cells Tissues
Organs
Organ systems
Organism

11. Here’s an example in humans:
Muscle cells
Muscle tissue
Organ
System
Organism

12. Whose cell is it anyway?

13. Questions – page 14-15