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Photosynthesis and Cellular Respiration

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PHOTOSYNTHESIS AND

CELLULAR RESPIRATION

By : Talal Abdullah AlQahatani

Grade : 10/A
Cellular Respiration
There are two types of cellular respiration.
Cellular respiration that occurs in the
presence of oxygen is called Aerobic
respiration and it occurs in mitochondria.
Cellular respiration that occurs in the
absence of oxygen is called Anaerobic
respiration and it occurs in a cell’s
cytoplasm.
How Cellular Respirations
Works
C6H12O6 + 6O2 → 6CO2 + 6H2O + Energy
Cellular Respiration is really just the
reverse of photosynthesis.
And it occurs in all organisms, both
autotrophs and heterotrophs.
It is how glucose (sugar) gets broken
down into usable energy (ATP).
How Photosynthesis Works
Energy + 6CO2 + 6H2O → C6H12O6 + 6O2
 Photosynthesis takes place in chloroplasts.
 Inside the chloroplasts are flat sac-like
structures called Thylakoids.
 Thylakoids are arranged in stacks of other
thylakoids called Grana.
 The light-dependent reactions occur in the
Grana. (Photosystems I and II).
Key Elements
 Chloroplasts -
Organelles found only
in plant cells that carry
out photosynthesis.
 Mitochondria -
Organelles found in
plant and animal cells
that carry out cellular
respiration.
EQUATION FOR
PHOTOSYNTHESIS
Reactants Products

WATER OXYGEN
6CO2 + 6H2O + ENERGY produces C6H12O6 + 6O2
CARBON GLUCOSE
DIOXIDE
EQUATION FOR
RESPIRATION
Reactants Products
CARBON
GLUCOSE DIOXIDE ATP
C6H12O6 + 6O2 produces 6CO2 + 6H2O + ENERGY

OXYGEN WATER
HOW IT RELATES!
Overview of photosynthesis and
respiration
SUN

RADIANT
ENERGY

PHOTOSYNTHESIS RESPIRATION CELL


ACTIVITIES

GLUCOSE ATP(ENERGY)
Summary
 Photosynthesis and cellular
respiration are related.
 Photosynthesis occurs in the
chloroplast of plant cells.
 Cellular respiration occurs in
the mitochondria of plant and
animal cells.
 Whenever you see an arrow in
our equations, think “produces”.
 Reactants produce products.
Remember, what one produces
the other one needs. It is a
cycle.

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