Tài liệu Bio Logical Energy pptx

Biological Energy

Designer:
Nguyen Tien Long
K12 HONOR PROGRAMME
Hanoi university of science

Outline
* Energy Consumption
* Respiration
* Photosynthesis

Energy Consumption
* The unit of energy :
+ in the dietary domain : calorie ( cal)
+ in the dietician’s capitalized : Calorie (Cal)
+ in mechanic : Joule ( J )
1 Cal = 1000 cal =1 kcal= 4186.8 J
* somes notes :
+ The well-fed adult : 2400 kcal /day
+ mankind uses the energy Consumption for many
purposes .


Respiration
* “respiration” : two components
+) external respiration :
as in the breathing of animals .
+) internal respiration :
oxygen molecules participate in chemical

reactions.
* internal respiration :
+) aerobic respiration :
+) anaerobic respiration :

AEROBIC RESPIRATION

Anaerobic respiration
Giving energy lower than the other
Giving an alcoholic environment
Organisms are clearly rather specialized

Photosynthesis
the chlorophyll is present
in organelles
known as chloro-
plasts
Granum:
resemble neatly
piled coins,
Granum
Thylakoids
Compose grana,
as flattened membrane vesicles
anh provide the physical
environment for the chloro-
phyll molecules :
Thylakoid
Stroma :
The intergranal space.

the region of cytoplasm
enclosed within
a thylakoid
is referred to as
the lumen
S
T
R
O
M
A
L
U
M
E
N

only plants, algae
and certain
types of bacteria
are able to harvest
the energy present
in sunlight
coz
Higher plants
possess chlorophyll a and chlorophyll b,
brown algae have chlorophyll
c
red algae chlorophyll d
bacterias have

a,b,c or d chlorophyll
Each chlorophyll
type has
its characteristic light
absorption maxima