Chapter 23, Problem 9P

(a)

Summary Introduction

To determine: The importance of relatively rapid inactivation of circulating hormone.

Introduction:

Hormone is an organic substance that is secreted by plants and animals. Hormones regulate many physiological activities. Hormone is made up of protein. It is transported in our body through circulatory system. In blood, regulation of hormone becomes half when radioactively labeled insulin is introduced into an animal. Half of the labeled hormone disappears from the blood.

(b)

Summary Introduction

To determine: The way by which the level of circulating hormone remains constant under normal conditions with respect to rapid inactivation.

Introduction:

Hormone is an organic substance that is secreted by plants and animals. Hormones regulate many physiological activities. Hormone is made up of protein. It is transported in our body through circulatory system. In blood, regulation of hormone becomes half when radioactively labeled insulin is introduced into an animal. Half of the labeled hormone disappears from the blood.

(c)

Summary Introduction

To determine: The changes that an organism makes in the level of circulating hormone.

Introduction:

Hormone is an organic substance that is secreted by plants and animals. Hormones regulate many physiological activities. Hormone is made up of protein. It is transported in our body through circulatory system. In blood, regulation of hormone becomes half when radioactively labeled insulin is introduced into an animal. Half of the labeled hormone disappears from the blood.