Aerobic respiration

1.

AEROBIC RESPIRATION

2.

Lesson objectives
To compare the synthesis of ATP in
aerobic and anaerobic respiration.

3.

Why oxygen is important for living
things?

4.

What is the purpose of the cellular
respiration?
All life activities in
living things require
energy.
Living things use
chemical energy for
life processes.
Living organisms get
energy by process
called cellular
respiration.

5.

What is cellular respiration?
Cellular respiration is series of reactions
that extract energy from food molecules.
It converts chemical energy that is stored
in food to ATP energy.

6.

Types of cellular respiration
1) aerobic respiration (requires O2)
2) anaerobic respiration (doesn’t require
O2)

7.

Aerobic respiration
Oxygen is used.
Most of organisms use this type of
respiration.
Food molecule is oxidized by O2 .
Glucose is totally oxidized up to CO2 and
H2O
Summary :
C6H12O6+6O2 6CO2+6H2O+32ATP

8.

Steps of aerobic respiration
Aerobic respiration is series of reactions.
Each reaction require its own enzyme.
Main steps are:
Glycolysis
2) Pyruvate oxidation
3) Citric acid cycle (Krebs cycle)
4) Electron transport chain (oxidative
phosphorylation)
1)

9.

Let’s do the activity on p. 69

10.

Homework
Read p.68-69
Answer to literacy questions on p 69.
New words