Biology 449 - Animal Physiology November 5, 2008

Lecture 25 - Blood Gas Transport I

Blood composition

Overview

Hemoglobin

Diffusion of gases

Alveolar-blood gradients

Oxygen transport

Oxygen affinity

Modifiers of oxygen affinity

Two pigment systems

Myoglobin

Fetal hemoglobin

Terms to Know

Plasma
Erthyrocytes (red blood cells or RBC's)

Hematocrit

Hemoglobin
Heme
Globin

Oxygen carrying capacity

Oxygen affinity
Oxygen saturation curve

Bohr effect
Right-shift
2,3-DPG (2,3-diphosphoglycerate)

Two pigment system
Myoglobin (Mb)

Readings

Lectures 25-26: Chapter 11, pages 498-518