Respiratory system

Respiratory system

Hemoglobin and myoglobin

Multiple Choice

•When oxygen binds to haemoglobin, it forms

• OXYHAEMOGLOBIN;

• DEOXYHAEMOGLOBIN

•OXYHAEMOGLOBIN;

When oxygen binds to haemoglobin

Open Ended

What role does Partial Pressure play in hemoglobin combining with oxygen?

HOW MUCH OXYGEN CAN COMBINE WITH HAEMOGLOBIN?

• This depends on the PARTIAL PRESSURE of oxygen (PO2).
• IF PO2 is High = Haemoglobin will readily combine with oxygen to form oxyhaemoglobin.
• When the haemoglobin combines with the oxygen to form oxyhaemoglobin, the haemoglobin is said to be saturated with oxygen.

Fill in the Blank

Once oxygen dissociates from haemoglobin in the muscles it is picked up and transported to the mitochondria by

Open Ended

Explain the role of Myoglobin

Myoglobin

• •In the muscle, oxygen is stored by MYOGLOBIN.

  This has a high affinity for oxygen and stores the oxygen until it can be transported from the capillaries to the mitochondria

• THE MITOCHONDRIA ARE THE SITES IN THE MUSCLE WHERE AEROBIC RESPIRATION TAKES PLACE. 

Multiple Select

A factor affecting hemaglobin saturation

• The cardiac control centre

• Inspiration

• Decrease in blood acidity (pH)

• Increase in partial pressure of Carbon Dioxide concentration

Fill in the Blank

The volume of air inspired or expired per breath is known as