Chapter 14, Problem 26P

(a)

Summary Introduction

To determine: The reason for the rapid rise in lactate concentration.

Introduction:

Intensive workout by muscles utilizes oxygen from the blood at faster rate, resulting in decrease in the level of oxygen for other reactions. The molecule of glucose is then converted into pyruvic acid in the absence of oxygen to produce two molecules of ATP which keeps the muscle going. End product of this reaction is lactic acid.

(b)

Summary Introduction

To determine: The reason for the decline in lactate concentration after completion of sprint along with the reason that decline occur more slowly than the increase.

Introduction:

Intensive workout by muscles utilizes oxygen from the blood at faster rate, resulting in decrease in the level of oxygen for other reactions. The molecule of glucose is then converted into pyruvic acid in the absence of oxygen to produce two molecules of ATP which keeps the muscle going. End product of this reaction is lactic acid.

(c)

Summary Introduction

To determine: The reason for concentration of lactate not being zero during the resting state.

Introduction:

Intensive workout by muscles utilizes oxygen from the blood at faster rate, resulting in decrease in the level of oxygen for other reactions. The molecule of glucose is then converted into pyruvic acid in the absence of oxygen to produce two molecules of ATP which keeps the muscle going. End product of this reaction is lactic acid.