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ANSWER KEY
Name:___________________________________Date:________________Period:______________
Photosynthesis and Cellular Respiration
Topic: Photosynthesis – How do cells make food?
A. Sunlight energy powers photosynthesis.
2. Producers (plants) need the
reactants, Carbon Dioxide and
Water and energy from the Sun.
B. Chlorophyll/green pigment captures light
energy
C. Chloroplasts are in photosynthetic organisms,
but they are not found in fungal and animal cells.
A. Inside plants glucose is produced from reactants.
B. CO2 + H2O + Sunlight Energy make sugar/food.
C. Light energy is converted to chemical energy.
3. The products of photosynthesis
are glucose which is a sugar used for
energy and oxygen gas.
Supporting Details
Main Ideas
1. Photosynthesis occurs in the
Chloroplast.
A. Glucose chemical formula: C6H12O6, Oxygen: O2
B. Energy is stored in the carbon bonds of glucose.
C. Excess glucose is stored as starch/glycogen.
Topic: Cellular Respiration – How do cells get energy from food?
A. Process of breaking down sugars/food to give cells energy
1. Cellular Respiration takes place in
the Mitochondria.
B. Mitochondria are in plant and animal cells.
2. The mitochondria need the
reactants glucose and oxy gen.
3. The products of cellular
respiration are energy (ATP) and
carbon dioxide, and water.
A. Oxygen is used to break down the two carbon
molecules to make ATP (Adenosine tri-phosphate.)
B. ATP has chemical energy stored in the phosphate bonds.
C. Mitochondria are the power houses of the cell because
they get the energy out of the food in a form cells can use.
for our cells to
A. CO2 released when carried to the lungs upon exhalation.
B. Some energy is transferred to the environment as heat.
C. Cellular respiration is almost the reverse reaction of
photosynthesis. The only difference is in the form of
energy. Sunlight energy is transformed to chemical
energy.
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Supporting Details
Main Ideas
C. First glucose is broken down in the cytoplasm to form
two 3-Carbon high energy molecules.