Functions of Cells

1. CELLS
- Cells carry out many functions required for
life.
- To reproduce, they grow and divide, thereby
producing more cells.
- To reproduce, cells take in nutrients which
they use to provide energy for the that they
do.

2. The following are functions of cells required
for life:
• Respiration
• Excretion
• Regulation
• Reproduction
• Growth
• Nutrition
• Transplant
• Synthesis

3. • Respiration
- set of metabolic reactions and processes
which take place in the cells.
- The exchange of gases (oxygen and carbon
dioxide)

4. • Regulation
- control and coordination of body activities
through the nervous system.

5. • Reproduction
- production of new organisms through sexual
and asexual reproduction.
- In sexual reproduction, the female parent
releases egg cell while the male parent
releases sperm cell.
- In asexual, offspring may come from
budding, fission, fragmentation, and
vegetative propagation

6. • Excretion
- Removal of wastes produced by cellular
activities.

7. • Growth
- The increase in size of organisms as a
result of increase in number and size of cells.

8. • Nutrition
- Process by which organisms take in food
from their environment.

9. • Transport
- Process by which materials needed by the
cell or an organism are taken by the organism
through absorption and circulation

10. • Synthesis
- Processes by which cells combine
chemically simpler and smaller substances to
form various complex substances