Cells contain organelles that allow growth and repair. Plant cells differ from animal cells by containing a cell wall and chloroplasts. The cell wall provides structure and support, the vacuole stores waste and water, and the chloroplast carries out photosynthesis to produce energy from sunlight. Growth occurs as cells divide and multiply, while repair happens as surrounding cells divide to replace damaged or dead cells.

1. Cells
Growth and Repair

2. Lets revision...
What are the organelles found in animal
cells?
How do plant cells differ from animal cells?
What does the cell wall do?
What does the vacuole do?
What does the chloroplast do?
What is photosynthesis?

12. How do things grow?

14. Their cells divide.

17. Growth
•! ulti-cellular organisms (plants, animals,
M
fungi) grow by adding new cells
•! ew cells are added through cell division
N
- Cell grows larger and splits in two
Repair
•! hen cells are damaged and die the
W
surrounding cells divide to replace them
•! f the damaged area is too large scar tissue
I
forms
•! car tissue is different from regular cells
S
and lacks their shape and function