1. Processes carried out by living things
Life Functions
Processes carried out by living things
A. Biology:
Study of life

2. B. Shared Characteristics of Living Things:
1. Made up of
cells
2. Reproduce
3. Based on universal genetic code:
DNA

3. 4. Grow
5. Obtain/Use materials & energy from the
environment

4. 6. Respond to their environment
7. Maintain a stable internal environment:
homeostasis
(dynamic equilibrium)
8. As a group, change over time:
evolve

5. ALL chemical and energy processes involved in life functions
C. Life Functions/Processes
MRS. R. GRENT
** Metabolism:
ALL chemical and energy processes involved in life functions

6. 1. Movement (Locomotion) Change in position Move toward resources
& away from danger
*not all organisms can do this!
2. Reproduction
Produce offspring for the survival of the species
a. Asexual: 1 parent
b. Sexual: 2 parents

7. 3. Synthesis
Combine small simple substances to form large complex molecules
Assimilation
incorporation of matter into an organism

8. Increase in size and/or number of cells
4. Respiration
Release chemical energy stored in nutrients
Aerobic: uses O2
Anaerobic: doesn’t use O2
5. Growth
Increase in size and/or number of cells

9. 6. Regulation (Coordination) 7. Excretion
Organism’s cells/body responds to stimuli to maintain homeostasis
7. Excretion
removal of cellular (metabolic) waste (liquids & gases)

10. 8. Nutrition
Take in materials from environment for energy, growth,& repair
Autotroph:
Organism that makes its own food
b. Heterotroph:
Organism that takes in food from the environment
Ingestion: take in food
Digestion: break down food
Egestion: remove solid waste

11. 9. Transport Movement of substances throughout an organism
Absorption & Circulation (blood)
In & Out of Cells
Within cells