1. Cells

3. How cells work together
Tissue
Group of
like Cells
Organ
Group of
Organs
Organ Systems

4. General Animal cells Have: Cell membrane Cytoplasm Nucleus
Irregular shape

5. Adapted to their function
Specialised Cells
Adapted to their function

6. Red Blood Cells Function: Adaptation: To carry oxygen around the body
Bi-concave cross-section to maximise surface area
Do not have a nucleus
Rounded edges to allow easier flow

7. Sperm Cell Adaptation: Function: Tail to swim
Streamlined shape to allow easier swimming
Pointed head to burrow into egg
Function:
To deliver genetic information to the egg cell

8. Nerve Cells Function: Adaptation:
To carry electrical impulse around the body
Adaptation:
Long structure
Can conduct electricity

9. White Blood Cells Function: Adaptation:
To kill off infection / foreign bodies in the blood scream
Adaptation:
flexible shape to engulf disease organisms