The Oxygen Content of Water Increases Linearly with an Increase

question 83

Multiple Choice

The oxygen content of water increases linearly with an increase in oxygen partial pressure, whereas the oxygen content of blood increases in a sigmoidal (S-shaped) fashion. Why?

• A) Carbonic anhydrase contributes to carbon dioxide release in blood, but not water.
• B) The Bohr shift is stronger in water than in blood.
• C) Hemoglobin shows cooperative oxygen binding.
• D) Oxygen is transported equally by hemoglobin and blood plasma.

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Definitions:

Diastolic

Refers to the phase of the heartbeat when the heart muscle relaxes and allows the chambers to fill with blood, specifically noted as the bottom number in blood pressure readings.

Hypertension

A condition characterized by consistently elevated blood pressure levels, often leading to significant health risks.

Vessel Walls

The structural components that form the boundaries of blood vessels, such as arteries and veins, responsible for regulating blood pressure and flow.

Apex Pulse

The palpable beat of the heart's apex against the chest wall, typically assessed as part of a physical examination.