Aerobic respiration occurs in the presence of oxygen and completely breaks down glucose to produce carbon dioxide, water, and a high amount of energy. Anaerobic respiration occurs without oxygen and incompletely breaks down glucose to produce lactic acid or ethanol and less energy. The key differences are that aerobic respiration produces more energy through multiple pathways and requires oxygen, while anaerobic respiration is faster but produces less energy without using oxygen.

1. AEROBIC RESPIRATION
AND
ANAEROBIC RESPIRATION

2. CONTENTS
 INTRODUCTION
 DEFINITION –AEROBIC RESPIRATION AND
ANAEROBIC RESPIRATION
 DIFFERENCES
 COMPARISON CHART
 CONCLUSION

3. INTRODUCTION
 Aerobic denotes the term ‘ in the presence of
oxygen’ while the word anaerobic denotes the
‘absence of oxygen.
 The respiration which occurs in the presence of
oxygen is called as aerobic respiration, on the
other hand, respiration occurring in the absence of
oxygen is known anaerobic respiration.
 So accordingly the chemical reaction involving the
breakdown of the nutrient molecule with the aim of
producing energy is called respiration.`

4. o Thus the energy required by the body to
perform well which is produced by the
chemical reaction. This process takes
place in the mitochondria or in the
cytoplasm of the cell either aerobically
or anaerobically.

5. DEFINITION OF AEROBIC
RESPIRATION
o Aerobic respiration takes place in the
presence of oxygen and the respiratory
substrate gets completely oxidised to
carbon dioxide and water as end
products. This type of respiration is of
common occurrence and it is often used
as a synonym of respiration.
o C6H12O6 + 6O2 6CO2 +
6H2O+686K.CAL

6. DEFINATION OF ANAEROBIC
RESPIRATION
 It takes place in the absence of oxygen
and the respiratory substrate is
incompletely oxidised. Some other
compounds are also formed in addition
to carbon dioxide. This type of
respiration is of rare occurrence but
common among microorganisms like
yeasts.
 C6 H12O6 2C2H5OH+2CO2+56K.Cal

7. DIFFERENCES – AEROBIC AND
ANAEROBIC RESPIRATION
 The breakdown of glucose in the presence of
oxygen to produce more amount of energy is
called as aerobic respiration, whereas the
breakdown of glucose in the absence of
oxygen to produce energy is called as
anaerobic respiration.
 Chemical equation of aerobic respiration is
Glucose + Oxygen gives Carbon dioxide +
water + energy whereas the equation of
Glucose gives Lactic acid + energy.

8.  Aerobic respiration occurs in the cytoplasm to
mitochondria, while anaerobic respiration occurs
in the cytoplasm only.
 The high amount of energy is produced and 38
ATP released at a time in aerobic respiration,
Less amount of energy is produced and 2 ATP
are released at a time in anaerobic respiration.
 Final product in aerobic respiration are carbon
dioxide and water, whereas Lactic acid ( animal
cell), carbon dioxide and ethanol (plant cell) is
the final product in anaerobic respiration.

9.  Aerobic respiration requires oxygen and
glucose to produce energy whereas in
anaerobic respiration does not require oxygen
but uses glucose to produce energy.

10. COMPARISON CHART
BASIS FOR
COMPARISON
AEROBIC
RESPIRATION
ANAEROBIC
RESPIRATION
Definition The breakdown of glucose
in the presence of oxygen
to produce more amount of
energy is called as aerobic
respiration.
The breakdown of glucose
in the absence of oxygen to
produce energy is called as
anaerobic respiration.
Chemical
Equation
Glucose + oxygen gives
carbon dioxide + water +
energy.
Glucose gives lactic acid+
energy.
It occurs in The cytoplasm to
mitochondria.
Takes place in cytoplasm
only.
Number of ATP released 38 ATP 2ATP

11. BASIS FOR
COMPARISON
AEROBIC
RESPIRATION
ANAEROBIC
RESPIRATION
Energy produced The high amount of
energy is produced
Less amount of
energy produced
Final product is Carbon dioxide and
water
Lactic acid (animal
cells), carbon
dioxide and ethanol
(plant cell).

12. Basis for
comparison
AEROBIC
RESPIRATION
ANAEROBIC
RESPIRATION
It requires Oxygen and glucose
to produce energy
It does not require
oxygen but uses
glucose to produce
energy’
Type of process It is a long process
for the production of
energy.
It is a fast process in
comparison to
aerobic respiration.

13. BASIS FOR
COMPARISON
AEROBIC
RESPIRATION
ANAEROBIC
RESPIRATION
It involves 1. Glycolysis also called
Embden- Meyerhof-
Parnas ( EMP) pathway.
2. The respiratory chain
(electron transport and
oxidative
phosphorylation)
3. The tricarboxylic acid
cycle (TCA), also known
as the citric acid cycle or
Krebs cycle.
1 Glycolysis
2 Fermentation
Process of combustion complete incomplete

14. BASIS FOR
COMPARISON
AEROBIC
RESPIRATION
ANAEROBIC
RESPIRATION
Examples Aerobic
respiration occurs
in many plants
and animals
(eukaryotes).
Anaerobic
respiration occurs
in human muscle
cells
(eukaryotes),
bacteria, yeast
(prokaryotes),
etc.

15. CONCLUSION
 From the above article, we can say that
energy is an essential factor, concerning
the work performed by the body. The
energy requirement is fulfilled by the two
type of chemical reactions occurring
inside the cell within the body of all
kinds of living beings like
microorganisms, plants, animals. These
chemical reactions are of two types one
is called aerobic respiration and the
another is called anaerobic respiration,
which we discussed above.

16.  Respiration and breathing are the two
different kind of process, that takes place
simultaneously inside the body, where the
former (respiration) is related to the
production of energy, involving the
breakdown of nutrient and converting it to the
form of energy, while the latter ( breathing )
is linked to the inhalation and the exhalation
process of oxygen and carbon dioxide
relatively.