EXAM 4 REVIEW
TEST TOMORROW!!!!!!!!
Chemical Equation for Photosynthesis
Water + Carbon Dioxide
Glucose + Oxygen
Chemical Equation for Photosynthesis
Water + Carbon Dioxide
H2O + CO2
Glucose + Oxygen
C6H12O6 + O2
Chemical Equation for Photosynthesis
Water + Carbon Dioxide
H2O + CO2
Inorganic
inorganic
Glucose + Oxygen
C6H12O6 + O2
ORGANIC
inorganic
Chemical Equation for Photosynthesis
Water + Carbon Dioxide
H2O + CO2
Inorganic
inorganic
Glucose + Oxygen
C6H12O6 + O2
ORGANIC
inorganic
Chemical Equation for Photosynthesis
Water + Carbon Dioxide
H2O + CO2
Inorganic
inorganic
Plants absorb water
through their roots
from the ground
Glucose + Oxygen
C6H12O6 + O2
ORGANIC
inorganic
Chemical Equation for Photosynthesis
Water + Carbon Dioxide
H2O + CO2
Inorganic
inorganic
Plants absorb water
through their roots
from the ground
CO2 from the air.
Animals exhale CO2
Glucose + Oxygen
C6H12O6 + O2
ORGANIC
inorganic
Chemical Equation for Photosynthesis
Water + Carbon Dioxide
H2O + CO2
Inorganic
C6H12O6 + O2
ORGANIC
inorganic
Plants absorb water
through their roots
from the ground
Glucose + Oxygen
Glucose is chemical
energy, or FOOD
CO2 from the air.
Animals exhale CO2
inorganic
Chemical Equation for Photosynthesis
Water + Carbon Dioxide
H2O + CO2
Inorganic
C6H12O6 + O2
ORGANIC
inorganic
Plants absorb water
through their roots
from the ground
Glucose + Oxygen
inorganic
Glucose is chemical
energy, or FOOD
CO2 from the air.
Animals exhale CO2
Oxygen is a waste product.
The plant does not need
oxygen so it releases it
into the air for us to breathe
Chemical Equation for Photosynthesis
Water + Carbon Dioxide
H2O + CO2
Inorganic
inorganic
Plants absorb water
through their roots
from the ground
LIGHT
ENERGY
Glucose + Oxygen
C6H12O6 + O2
ORGANIC
inorganic
Glucose is chemical
energy, or FOOD
CO2 from the air.
Animals exhale CO2
Oxygen is a waste product.
The plant does not need
oxygen so it releases it
into the air for us to breathe
How do plants capture light energy?
How do plants capture light energy?
Plants have special light absorbing
molecules called pigments that can
capture light energy from the sun.
The main pigment of photosynthesis
is chlorophyll
In which organelle does
photosynthesis take place?
In which organelle does
photosynthesis take place?
CHLOROPLAST
What is the purpose of
photosynthesis?
What is the purpose of
photosynthesis?
• To change light energy from the sun into
chemical energy
• To change inorganic materials into organic
products that can be used as FOOD energy.
What is the organic product of
photosynthesis?
What is the organic product of
photosynthesis?
•GLUCOSE!!!
What is the organic product of
photosynthesis?
•GLUCOSE!!!
C6H12O6
Where do organic molecules store
energy?
Where do organic molecules store
energy?
• In the bonds between the atoms of the
molecule.
How can energy be released from an
organic molecule?
How can energy be released from an
organic molecule?
• By breaking the bonds!
Chemical Equation for Photosynthesis
H2O + CO2
C6H12O6 + O2
In which organelle is glucose MADE?
In which organelle is glucose MADE?
•CHLOROPLAST
In which organelle is glucose broken
down?
In which organelle is glucose broken
down?
•MITOCHONDRIA
Glucose?
Chloroplast- MAKES IT
Mitochondria- BREAKS IT
What does a plant do with extra
glucose?
What does a plant do with extra
glucose?
• Plants store extra glucose as a
large polymer called STARCH
What does a plant do with extra
glucose?
• Plants store extra glucose as a
large polymer called STARCH
• VACUOLE
What macromolecule are starches
and sugars (glucose)?
What macromolecule are starches
and sugars (glucose)?
•CARBOHYDRATES
What is an autotroph?
What is an autotroph?
• Organisms that makes its own food energy
What is a heterotroph?
What is a heterotroph?
• An organism that gets its energy by eating
other organisms
Enzymes…
What are 2 factors that affect enzyme
activity?
What are 2 factors that affect enzyme
activity?
•Temperature
•pH
What happens to an enzyme when it
goes too far past its optimum
temperature or too far out of its pH
range?
What happens to an enzyme when it
goes too far past its optimum
temperature or too far out of its pH
range?
LOSES ITS SHAPE
• The enzyme
and can no longer catalyze a chemical reaction
Explain how an enzyme works like a
lock and key.
Explain how an enzyme works like a
lock and key.
• Each enzyme has a specific shape that fits a
specific substrate.
How many different chemical
reactions can an enzyme catalyze?
• JUST ONE type of chemical reaction!
• Each enzyme only fits ONE type of reactant
that fits its specific shape!