Microbiology: A Systems Approach
Microbiology: A Systems Approach
5th Edition
ISBN: 9781259706615
Author: Marjorie Kelly Cowan Professor
Publisher: McGraw-Hill Education
Question
Book Icon
Chapter 12, Problem 1MCQ
Summary Introduction

Introduction:

Antibiotics are sometimes naturally formed chemicals which are released by soil fungi and bacteria in their environments. It provides them the ability to compete against microbial communities. The saturation of antibiotics into the surrounding deeply affected the evolution of bacteria.

Expert Solution & Answer
Check Mark

Answer to Problem 1MCQ

Correct answer:

A compound synthesized by bacteria or fungi that destroys or inhibits the growth of other microbes is an antibiotic. Therefore, option (b) is correct.

Option (b) is given as “antibiotic”.

Explanation of Solution

Justify reasons for the correct statement:

Antibiotics can be produced only by a living organism such as bacteria. Antibiotics can be generated either alone or by different groups of microorganisms such as bacteria, actinomycetes,and fungi. More than thirty antibiotics have been isolated from those groups. Microbes that can produce antibiotics are useful for the prevention and treatment of many diseases including bacterial and fungal disease. For example, penicillin and tetracycline.

Hence, option (b) is correct.

Justify reasons for the incorrect statements:

Option (a) is given as “synthetic drug”.

Drugs that are synthesized in the laboratory by mimic the action of natural compounds by chemical reactions are called synthetic drugs. Hence, it is a wrong answer.

Option (c) is given as “interferon”.

Interferon, a human-based compound that is a glycoprotein. It is produced by leukocytes and fibroblasts in response to many immune responses. Hence, it is a wrong answer.

Option (d) is given as “competitive inhibitor”.

A form of enzyme inhibition that contains the binding of an inhibitor that preventsthe binding of the target molecule of the enzyme is termed as a competitive inhibitor. Hence, it is a wrong answer.

Hence, options (a),(c), and(d) are incorrect.

Conclusion

Antibiotics eradicate the bacteria that are susceptible to departing from the resistant

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
O Macmillan Learning Glu-His-Trp-Ser-Gly-Leu-Arg-Pro-Gly The pKa values for the peptide's side chains, terminal amino groups, and carboxyl groups are provided in the table. Amino acid Amino pKa Carboxyl pKa Side-chain pKa glutamate 9.60 2.34 histidine 9.17 1.82 4.25 6.00 tryptophan 9.39 2.38 serine 9.15 2.21 glycine 9.60 2.34 leucine 9.60 2.36 arginine 9.04 2.17 12.48 proline 10.96 1.99 Calculate the net charge of the molecule at pH 3. net charge at pH 3: Calculate the net charge of the molecule at pH 8. net charge at pH 8: Calculate the net charge of the molecule at pH 11. net charge at pH 11: Estimate the isoelectric point (pl) for this peptide. pl:
Biology Question
This entire structure (Pinus pollen cone) using lifecycle terminology is called what?

Chapter 12 Solutions

Microbiology: A Systems Approach

Knowledge Booster
Background pattern image
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Comprehensive Medical Assisting: Administrative a...
Nursing
ISBN:9781305964792
Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy Correa
Publisher:Cengage Learning
Text book image
Complete Textbook Of Phlebotomy
Biology
ISBN:9781337464314
Author:Hoeltke
Publisher:Cengage
Text book image
Essentials of Pharmacology for Health Professions
Nursing
ISBN:9781305441620
Author:WOODROW
Publisher:Cengage
Text book image
Basic Clinical Lab Competencies for Respiratory C...
Nursing
ISBN:9781285244662
Author:White
Publisher:Cengage
Text book image
Medical Terminology for Health Professions, Spira...
Health & Nutrition
ISBN:9781305634350
Author:Ann Ehrlich, Carol L. Schroeder, Laura Ehrlich, Katrina A. Schroeder
Publisher:Cengage Learning
Text book image
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning