Download cellular respiration

CELLULAR
RESPIRATION
What is cellular respiration?
ð The process by which cells break
down simple food molecules (glucose)
to release energy.
Glucose
What is the chemical formula
for cellular respiration?
→
Oxygen
Carbon Dioxide
Water
Glucose
REACTANTS
PRODUCTS
C6H12O6 + 6 O2 à 6 CO2 + 6 H2O
Glucose Oxygen
Carbon
Dioxide
Water
What are the two stages of
cellular respiration?
ð 1st Stage – Occurs in the cytoplasm
No oxygen is involved (anaerobic)
Very little energy is released
ð 2nd Stage – Occurs in mitochondria
Oxygen is involved (aerobic)
Lots of energy is released
What is the difference between
photosynthesis and respiration?
ð Cellular respiration & photosynthesis
can be thought of as opposite
processes.
ð All organisms do cellular respiration!
Only plants and some protists do
photosynthesis.
What is fermentation?
ð Bacteria do not have mitochondria
therefore can only do the 1st stage of
cellular respiration.
ð The 1st stage of cellular respiration
is called fermentation.
Also called anaerobic respiration.
(without oxygen)
Types of Fermentation
! Alcohol Fermentation occurs in yeast
cells
! Lactic Acid Fermentation occurs in
muscle cells in the body