Gaseous exchange and control in mammals

The unique shape of the haemoglobin oxygen dissociation curve.

• hyperbolic shape

• bell curve

• Sigmoidal shape

• mountain

 Oxygen unloaded/ detached/ unbinds from haemoglobin is

• oxygenated hemoglobin
• Dissociation of haemoglobin

• loading of haemoglobin subunits

• association of haemoglobin

Cooperative Binding is

• When one oxygen binds, it decreases haemoglobin's affinity for more oxygen.

• When one oxygen unbinds, it increases haemoglobin loading of oxygen

• When one oxygen binds, it increases haemoglobin's affinity for more oxygen.

• When one oxygen unbinds, it increases haemoglobin's affinity for more oxygen.

 The protein responsible for oxygen storage in muscles.

• haemoglobin

• myoglobin

• deoxygenated red blood cell

• haem group

Has a lower affinity for oxygen but can carry four molecules at a time.

• Hemoglobin
• Chlorophyll
• Cytochrome
• Myoglobin

The shape of myoglobin’s oxygen dissociation curve.

• Linear shape
• S-shaped curve
• Circular pattern
• Hyperbolic shape

The process where CO2 combines with H2O, forming an acid that affects oxygen affinity.

• Carbon dioxide absorption
• Water dissociation
• Carbonic acid formation
• Oxygen production process

Bohr effect is...

• The Bohr effect increases hemoglobin's affinity for oxygen in high pH conditions.
• the physiological phenomenon where increased carbon dioxide and decreased pH reduce hemoglobin's affinity for oxygen.

• the process of oxygen binding to myoglobin.

• refers to the release of carbon dioxide from hemoglobin in the lungs.

Actively Respiring Tissues are

• Tissues that only function during sleep, like skin tissue.
• Tissues that do not require oxygen the most, like adipose tissue.

• Tissues that require oxygen the most for metabolism, like muscle and brain tissues.

• Tissues that are primarily composed of fat cells, like connective tissue.

The Bohr effect shifts the oxygen dissociation curve to the...

• left
• right
• upward
• downward