Transport of oxygen

Question 1

How much oxygen does haemoglobin carry?

Answer 1

98%

The other 2% is dissolved in plasma

Question 2

What colour is oxyhaemoglobin?

Answer 2

Red

Question 3

What colour is deoxyhaemoglobin?

Answer 3

Purple/blue

Question 4

One haemoglobin can take how many oxygen molecules?

Answer 4

4

Question 5

Why does oxygen bind to haemoglobin?

Answer 5

High partial pressure in the lungs

Question 6

Partial pressure at the muscles is…

Answer 6

Low

Question 7

What affects haemoglobin saturation?

Answer 7

Dec. in blood acidity pH
Inc. in blood temperature
Inc. in partial pressure of CO2 concentration
These decrease haemoglobin affinity T/F more O2 to muscles.

Question 8

What happens when haemoglobin dissociates?

Answer 8

It becomes unsaturated and it is picked up and transported to the mitochondria by myoglobin.

Question 9

What is the Bohr Shift?

Answer 9

When exercising there is an increase in CO2 produced T/F H+ ions produced T/F decrease in pH

Question 10

What is the route of oxygen?

Answer 10

Arteries
Arterioles
Capillaries
Venules
Veins

Question 11

What is between the arterioles and capillaries?

Answer 11

Precapillary sphincter.

Question 12

What is vascular shunt?

Answer 12

The redistribution of blood around the body.

During exercise no blood to liver/stomach and goes to muscles.