Chapter 7, Problem 25CQ

(a)

Summary Introduction

To explain: Whether hyperventilation by skydivers helps or not.

Concept introduction: Hyperventilation or over breathing is the expiration of more carbon dioxide than normal. Skydivers hyperventilate by deeply inhaling for a longer time just before diving believing that it significantly increases the oxygen content in blood.

(b)

Summary Introduction

To evaluate: Whether the practice of hyperventilating is useful or not.

Concept introduction: Hyperventilation or over breathing is the expiration of more carbon dioxide than normal. Skydivers hyperventilate by deeply inhaling for a longer time just before diving believing that it significantly increases the oxygen content in blood. Hemoglobin is the major oxygen carrying protein in the body. It carries oxygen from lungs and delivers it to tissues for cellular metabolism. It has four polypeptide chains that make up 4 sub-units of hemoglobin.