1. Aim #13: How can we differentiate between living and nonliving things?
Date: September 30, 2016
Aim #13: How can we differentiate between living and nonliving things?
HW:
Castle Learning due Wednesday
Unit 1 Test Thursday (p.1) & Friday (p.5)
Do Now:
Describe the technique for preparing a wet mount and explain its purpose.
How are light microscopes and electron microscopes different?

2. 1) What is the science of biology?
Biology is the study of life
How do we know the
difference between living
and nonliving things?

3. CHARACTERISTICS OF LIFE
Cells: Basic units of structure & function
Metabolism: Chemical reactions in cells
Homeostasis: Internal Balance
Reproduction: Produce offspring

4. All Living Things Are Made Up of One or More Cells

5. ENERGY and METABOLISM
Energy is required to maintain life and for growth and development.
Metabolism includes all
of the chemical reactions
that occur in an
organism.

6. HOMEOSTASIS Break down the word: homeo - Constant or the same
stasis – balance
By definition, homeostasis is the ability of the body to maintain a relatively constant internal condition, regardless of the external environment.

7. Reproduction: the ability of an organism to produce a NEW organism.

8. Eight Life Functions Nutrition Transport Cell Respiration Excretion
Synthesis
Regulation
Growth
Reproduction

9. to help remember the life functions!
Use the acronym
MR. STRANGER
to help remember the life functions!

10. NUTRITION All organisms get nutrients through their food!
a. Autotrophic: refers to organisms that make their own food
(auto=self, trophic= feeders)
b. Heterotrophic: refers to organisms that get nutrients from
the environment (hetero= other, trophic= feeders)
ingestdigestegest

11. Transport
Organisms circulate (distribute) and absorb materials through the cells (food and waste)

12. Cell Respiration The process by which energy stored in food is
converted to a usable form (ATP)

13. Excretion Get rid of Metabolic (cell) waste
Ex: carbon dioxide, urine, sweat

14. SYNTHESIS To make or to build from small to large.
Ex: Protein synthesis (building proteins)

15. REGULATION
To control and coordinate life activities

16. GROWTH
Increasing the size or number of cells

17. REPRODUCTION Production of new individuals
Note: Not necessary for the survival of an individual, but necessary for the survival of a species!