Gaseous Exchange and Respiratory System

The diffusion gradient is the difference in partial pressure (concentration) from one side of a membrane to another, and it is measured in mmHg.

The primary factor is the oxygen dissociation process, which is influenced by temperature, pCO2, and pH.

The production of lactic acid during exercise lowers the pH, which increases oxyhaemoglobin dissociation.

<p>Oxyhaemoglobin dissociation gradually returns to resting levels during recovery.</p> Signup and view all the answers

<p>The partial pressure of oxygen is 100 mmHg in the blood and 40 mmHg in the muscle cell during rest.</p> Signup and view all the answers

<p>The increase in temperature during exercise increases oxyhaemoglobin dissociation.</p> Signup and view all the answers

<p>Removing CO2 during recovery lowers pCO2, which decreases oxyhaemoglobin dissociation.</p> Signup and view all the answers

<p>The Bohr Shift increases oxyhaemoglobin dissociation, allowing more oxygen to be released from haemoglobin and enter the muscle cell during exercise.</p> Signup and view all the answers

<p>Diffusion</p> Signup and view all the answers

<p>pO2</p> Signup and view all the answers

<p>Blood capillaries and muscle cells</p> Signup and view all the answers

<p>Oxygen moves into the capillaries</p> Signup and view all the answers

<p>The body's demand for oxygen is high, resulting in faster and deeper breathing</p> Signup and view all the answers

<p>Carbon dioxide travels across the membrane wall to the alveoli</p> Signup and view all the answers

<p>Gaseous exchange increases during exercise</p> Signup and view all the answers