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Biology: The Dynamic Science (Mind...

4th Edition
Peter J. Russell + 2 others
Publisher: Cengage Learning
ISBN: 9781305389892
BuyFind

Biology: The Dynamic Science (Mind...

4th Edition
Peter J. Russell + 2 others
Publisher: Cengage Learning
ISBN: 9781305389892

Solutions

Chapter
Section
Chapter 1, Problem 4TYK
Textbook Problem
19 views

Which structure allows living organisms to detect changes in the environment?

a. a protein

b. a receptor

c. a gene

d. RNA

e. a nucleus

Expert Solution
Summary Introduction

Introduction:

Homeostasis is defined as the stable condition of an organism along with its internal environment. It is also described as the regulation or maintenance of the stable condition in order to balance the bodily functions. The stable condition is dependent on variables, such as fluid balance and body temperature.

Explanation of Solution

Justification for the correct answer:

Option (b) is “a receptor.” This option is correct as receptor is a molecule in a membrane or a part of a tissue, which specifically responds to a particular neurotransmitter. In living organisms, changes in the environment are detected by the receptors present on the epidermal cells of the skin. Hence, option (b) is the correct answer.

Justifications for the incorrect answers:

Option (a) is “a protein.” It is false as biomolecules can be defined as the organic molecules required by all the living organisms. Carbohydrates, proteins, lipids and nucleic acids are the four categories of biomolecules. Therefore, it is an incorrect option...

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Chapter 1 Solutions

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