Gas Exchange And Blood Productions Flashcards
Where does gas exchange occurs
Alveoli in the lungs
What are alveoli surrounded by
Capillaries which allow for gas exchange to occur
What do blood vessels do
Transport oxygen
What are alveoli’s
Thin cell walls
Larger surface area allows for more sufficient gaseous exchange
Oxygen diffuse easier and more can be moved
What does gas move by
Diffusion
Where does oxygen move from
From the air through the alveoli and into the blood
Where does carbon dioxide move
From the blood into the air through the alveoli
Where does haemoglobin move
Loads oxygen at lungs and unloads at respiratory tissues
Loads carbon dioxide at respiratory tissues and unloads at lungs
What is haemoglobin
Red proteins
Transports oxygen all over the body and transports oxygen back
Gives blood it’s red colour
Carries carbon dioxide back to lungs so it can be excreted
Where is haemoglobin found
Red blood cells
How many oxygen molecules can it carry
Four
What is the oxygenated form
Oxyhemoglobin
What does haemoglobin look like
Bright red
Smooth
Disc shaped
Flexible
What is myoglobin
Supply oxygen to muscle cells
Oxygen and ion binding proteins
Stores oxygen
Where is myoglobin found
Striated muscles such as skeletal and cardiac
