Objective 2.1 - Understanding the transport of oxygen in the human body
(submit on 22/01/2014)
(submit on 22/01/2014)
Learning Outcome : 1) Describe the diffusion of oxygen from the alveoli into the blood capillaries
1) The oxygen that we breathe travel through Respiratory System into our lungs, however do you know where the oxygen goes ?
2) Oxygen that reach the alveolus will diffuse into blood capillaries. Than the oxygen will travel through heart and reach the body cells.
3) To understand the process of transport of oxygen in the human body, click the link below :
http://myscienceflashvideo.blogspot.com/2010/05/pengangkutan-oksigen-transportation-of.html
REMEMBER !!!
1) What organ involve during oxygen transportation (lungs, heart and body cells)
2) What happen on concentration of oxygen :
i- from alveolus to blood capillaries (high in alveolus, low in blood capillaries. If this
happen, the oxygen can diffuse from alveolus into blood capillaries)
ii- from blood capillaries to body cells (high in blood capillaries, low in alveolus. If this
happen, the oxygen can diffuse from blood capillaries into body cells)
3) What will combine with oxygen in red blood cell (haemoglobin)
4) Name the process of :
i - oxygen combine with haemoglobin (diffuse)
ii- oxygen seperate from haemoglobin (decomposes)
Hot Questions :
a) How oxygen can diffuse from alveolus into blood capillaries ?
When the oxygen concentration in alveolus is higher than in the blood.
b) How alveoli diffuse oxygen efficiently ?
The alveoli surrounded by a thin moisture film that help dissolve oxygen efficiently.
2) Oxygen that reach the alveolus will diffuse into blood capillaries. Than the oxygen will travel through heart and reach the body cells.
3) To understand the process of transport of oxygen in the human body, click the link below :
http://myscienceflashvideo.blogspot.com/2010/05/pengangkutan-oksigen-transportation-of.html
REMEMBER !!!
1) What organ involve during oxygen transportation (lungs, heart and body cells)
2) What happen on concentration of oxygen :
i- from alveolus to blood capillaries (high in alveolus, low in blood capillaries. If this
happen, the oxygen can diffuse from alveolus into blood capillaries)
ii- from blood capillaries to body cells (high in blood capillaries, low in alveolus. If this
happen, the oxygen can diffuse from blood capillaries into body cells)
3) What will combine with oxygen in red blood cell (haemoglobin)
4) Name the process of :
i - oxygen combine with haemoglobin (diffuse)
ii- oxygen seperate from haemoglobin (decomposes)
Hot Questions :
a) How oxygen can diffuse from alveolus into blood capillaries ?
When the oxygen concentration in alveolus is higher than in the blood.
b) How alveoli diffuse oxygen efficiently ?
The alveoli surrounded by a thin moisture film that help dissolve oxygen efficiently.
![Picture](/uploads/8/0/5/8/8058080/7502541.jpg?240)
c) How the oxygenated blood transfer into the whole of the body ?
- Haemoglobin is like a taxi, Oxygen is like a passenger. When Oxygen +haemoglobin ----> oxyhaemoglobin (oxygenated blood)
- Oxyhaemoglobin leaves the lungs and carried into the heart. Than heart pumps the blood to all part of body.
- When the oxyhaemoglobin reaches tissues or cells that low oxygen, the oxyhaemoglobin broke down (decomposes) and oxygen is released.
- The oxygen then diffuses through the walls of the capillaries into the body cells.
- At the same time, carbon dioxide from the body cells diffuse into the capillaries and carried back to the lungs.
The process of diffusion and oxygen transportation by blood from lung--> heart --> body cells
During inhalation, the concentration of oxygen is higher in the alveolus but low in the blood capillaries. Oxygen diffuse from the alveolus into the blood capillaries and combine with haemoglobin to form oxyhaemoglobin. The oxygen-rich is than transported to the heart and pumped to all parts of the body. In the body cells, the concentration of the oxygen is low. Thus, oxyhaemoglobin in the blood capillary decomposes/break down to release oxygen which disuse into the body cells.
During inhalation, the concentration of oxygen is higher in the alveolus but low in the blood capillaries. Oxygen diffuse from the alveolus into the blood capillaries and combine with haemoglobin to form oxyhaemoglobin. The oxygen-rich is than transported to the heart and pumped to all parts of the body. In the body cells, the concentration of the oxygen is low. Thus, oxyhaemoglobin in the blood capillary decomposes/break down to release oxygen which disuse into the body cells.