TOPIC 1
Similarities and Differences Among Living Organisms
1. CHARACTERISTICS OF LIFE
A. _____________________________________________________________________________________________________________________________
B. Living things ________________________________________________________________________________________________________________________________________________________________________
C. Living things ________________________________________________________________________________________________________________________________________________________________________
D. Living things_____________________________________________________________________________________________________________________________________________________________________________________________________________
2. DIVERSITY AMONG LIVING THINGS
A. The group_______________________________________________________________________________
B. Currently biologists classify organism____________________________________________________________________________
C. Many scientists do not ____________________________________________________________________________________
3. Similarities Among Living Things
A. Life processes
a. obtaining ________________________
b. transporting _____________________
c. cellular __________________________
d. ____________________________
e. __________________________
f. removing ______________________
g. responding __________________________________________________________________________
h. __________________________________________________________________________
B. Chemical composition
a. All living cells are made of 4 main elements._____________________
b. Organic molecules_________________________________________________________________
c. Inorganic compounds _____________________________________:water, salt, carbon dioxide, and oxygen.
C. Organization.
a. ______________________________________________________________________________________________________________.
b. Cells---tissues--_______________________________________________________________________________________________________________
p. 3, 1-10
4. CELLS: THE BASIC STRUCTURE OF LIFE
A. Inside the Cell
1. Cytoplasm – jellylike substance inside the cell ,__________________________________________________________________________________________________________________________________________________________ Oragnelles are they many different structures in a cell.
a. nucleus _____________________________________________________________________
b. Vacuoles- are storage sacs within the ______________________________________________________________________
c. Ribosomes- ______________________________________________________________________
d. Mitochondria _________________________________________________________________________________________________________. It is where the cell gets it’s energy.
e. Chloroplasts- ____________________________________________________________________________________________________________________________________________. These structures contain chlorophyll and capture light energy, which helps in making food.
p. 4-5 11-19
B. The cell membrane is a thin structure that surrounds the cell. ____________________________________________________________________________________
Diagram here:
· DIFFUSION is the movement of molecules from a higher ________________________________________________________________________________________________________________________
· ACTIVE TRANSPORT is where the cell uses energy ________________________________________________________________________________
· PASSIVE TRANSPORT – ________________________________________________________________________________.
· DIGESTION ________________________________________________________________________________
· Receptor molecules are specific for what they react with. (hormones)
p. 7-8 , 20-35