RESPIRATION
OBJECTIVE
1. What is respiration? – Give the definition.
2. State the uses of energy in the body of humans
3. Define Aerobic and Anaerobic respiration
4. State the word equation and the balanced chemical equation
for aerobic and anaerobic respiration.
5. Describe the effect of lactic acid in muscles during exercises
1
VOCABULARY
VOCABULARY
1.
Aerobic: with oxygen
2.
Anaerobic: without oxygen
3.
Muscle contraction: the tightening, shortening or lengthening of
muscles when you do some activities
4.
Cell division: the process by which a parent cell divides into two or
more daughter cells
5.
Protein synthesis: the process by which proteins are formed in
biological cells.
2
THE USES OF ENERGY
WHY DO WE NEED ENERGY?
WHY DO WE NEED ENERGY?
Photosynthesis
The process by which green plants use sunlight to synthesize foods
from carbon dioxide and water.
WHERE DO WE
GET THE ENERGY FROM?
Food
RESPIRATION
The chemical reactions that break down glucose in living cells to
release energy, with or without oxygen.
3
AEROBIC AND ANAEROBIC
Make a comparison
1.
Definition – write in your OWN WORDS
2.
Oxygen
3.
Glucose break down
4.
Products
5.
Energy released
6.
Word equation
7.
Balanced chemical equation
Definition
Oxygen
Aerobic
Anaerobic
The chemical reactions that break down
glucose in living cells to release
energy, with oxygen
The chemical reactions that break
down glucose in living cells to
release energy, without oxygen
With
Without
Bảng so sánh
Glucose break
down
Products
Energy released
Word equation
Balanced
chemical equation
Complete
Incomplete
Carbon dioxide and water
Animal cells: Lactic acid
A Lot
A Little
Glucose + Oxygen  Carbon dioxide + Water
Glucose  Lactic acid
C6H12O6 + 6O2  6CO2 + 6H2O
C6H12O6  2C3H6O3
THE EFFECT OF LACTIC ACID
IN MUSCLES DURING EXERCISE
Higher demand for energy
THE EFFECT OF LACTIC ACID
IN MUSCLES DURING EXERCISE
Higher demand for energy
THE EFFECT OF LACTIC ACID
IN MUSCLES DURING EXERCISE
ENERGY
TOO MUCH
LACTIC ACID
MUSCLE PAIN
LACTIC ACID
BLOOD
LIVER
LACTIC ACID
LIVER
LACTIC
ACID
OXYGEN
Oxidized to produce carbon
dioxide and water
CARBON
DIOXIDE
REPAYING THE OXYGEN DEBT
WATER
BOOKLET!
THANKS