Thursday 10/22/15
9 Week
Checkpoint
Review
Pick up a review from the front table
& be in your seat when the bell rings
• Why is heating
materials in a closed
test tube unsafe?
Expands & will burst or explode
What is the independent
variable?
The one being tested.
The one I change.
What is the dependent
variable?
The one being measured.
The one that responds to the IV
being changed.
What are the levels of
organization from atom to
organism?
Atom molecule cell tissue
organ organ system organism
What Biological
Macromolecule contains
Nitrogen?
Proteins
Nucleic Acids
What are complex
carbohydrates (Starches)
broken down into during
digestion (what is the
monomer)?
•
Simple sugars
(monosaccharides)
What are proteins
made of?
amino acids
8
What three things affect
how quickly enzymes (Picky
Proteins) will break down
substrates?
pH
Temperature
Concentration
9
What happens when
the enzyme is
changed?
Changes the shape &
causes it to slow down or
not work
10
What are some functions
of enzymes?
Speed up, break down, digest
How can you tell the
difference between
a prokaryotic &
eukaryotic cell?
nucleus
12
What 4 structures do
prokaryotic &
eukaryotic cells have
in common?
DNA
Ribosomes
Cell membrane
Cytoplasm
13
What are the
characteristics of a
eukaryotic cell?
• Have a nucleus
• Unicellular or multicellular
• Have membrane-bound organelles
14
What is the purpose
of the cell
membrane?
Maintain homeostasis by
regulating what goes in &
out of the cell
15
What is the purpose of
a semipermeable
membrane?
Allow certain molecules to
pass through and not allow
others.
What is the difference
between diffusion and
osmosis?
• Diffusion is the movement of
particles OTHER than water from
high to low concentration.
• Osmosis is the movement of
WATER from high to low
In a semipermeable membrane,
what determines whether or not a
molecule can pass through the
membrane?
Size & shape
Which solution would
cause the cell to swell?
A
B
C
B.
What process is occurring
when carrier molecules or
transport proteins allow
materials to cross the cell
membrane from high to low
concentration?
Facilitated diffusion
What type of
transport is shown
below?
Facilitated diffusion
What process occurs in the
chloroplast? What occurs in the
mitochondria?
• Photosynthesis (plants)
• Cell respiration (plants &
animals)
During what process is
sunlight converted into
chemical energy to be
used as food by
autotrophs?
Photosynthesis
What reacts with the energy from
sunlight to produce sugar or oxygen
during photosynthesis?
CO2 & H20
What is the purpose of
ATP in photosynthesis
and cellular respiration?
Transfer Energy
What is the purpose
of cellular
respiration?
To release stored energy (aka
ATP)
What does the
mitochondria provide
to help skin cells heal
a wound?
Energy (ATP)
What determines the
number of mitochondria
that a cell will have?
How active the cells are
What gas is
produced as a
product of
photosynthesis?
oxygen
What is the difference
between photosynthesis
& cellular respiration?
(why are they opposites)
What is made by one, is
used by the other
Which of the following is the equation
for photosynthesis?
A. CO2+ H2O+ light
B. C6H12O6+O2
CO2+ H2O+ light
C6H12O6+O2
CO2+ H2O+ ATP
C6H12O6+O2
Which of the following is the
equation for cellular
respiration?
CO2 + H2O + light
C6H12O6 + O2
C6H12O6+O2
CO2 + H2O + ATP
C6H12O6+O2
ATP + CO2+ H2O