Transcript Biology Review 3 week Exam

Biology Exams
Tomorrow!
Are You Ready?
Safety First!
What is Science!!
The use of evidence to
construct testable
explanations and
predictions of natural
phenomena, as well as the
knowledge generated through
this process.
What is a Hypothesis?
• Testable Predictions of a cause of
solution to a problem
• Not a Question!!!
• Example:
If I study for my exam, then I will
make a good grade!@!@!@!
Know your Variables!
C
A
U
S
E
E
F
F
E
C
T
M- manipulating variable
I - independent variable
X- x axis
D- dependent variable
R- responding variable
Y - y axis
Know Your Groups!!
Experiment
Groups
Control Groups
Contain the
Independent
Variable!
Do not contain the
Independent
Variable!
Know Your Biomolecules
Biomolecules Information Chart
Bio- referring to life or living things.
Molecule- the smallest particle of a
substance composed of one or more atoms.
Biomolecule
s
Function
Carbohydra Living things use carbohydrates as the
te
main source of energy. Carbohydrates
are also used for structural purposes.
Protein
Control the rate of chemical reactions
and regulate cell processes. Transport
substances into and out of the cell. Form
the functional parts of living things.
Lipid
Lipids are an important part of the cell’s
membrane. Lipids can be used as a
method to store energy for long periods of
time.
Nucleic Acid Nucleic acids store and transmit
hereditary or genetic information
necessary for making all proteins.
Examples
The Role of Enzymes
Enzymes are catalysts made of
proteins. They speed up
chemical reactions in cells by
lowering the energy required
for them to occur!
Compare Prokaryotes and Eukaryotes
Prokaryotes
Eukaryotes
Are Alive
X
X
Are Cells
X
X
Have a Nucleus
X
Have Organelles
X
Have a Cellular
Membrane
X
X
(some) Have a Cell Wall
X
X
All are Unicellular
X
Some are Multicellular
X
Have DNA
X
Are Bacteria
X
X
Are Animals
X
Are Plants
X
Are Fungi
X
X = True