GEN COMBO LOOSELEAF MICROBIOLOGY:A SYSTEMS APPROACH; CONNECT ACCESS CARD
GEN COMBO LOOSELEAF MICROBIOLOGY:A SYSTEMS APPROACH; CONNECT ACCESS CARD
5th Edition
ISBN: 9781260149364
Author: Marjorie Kelly Cowan Professor
Publisher: McGraw-Hill Education
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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
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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

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Students have asked these similar questions
Technically speaking, true antibiotics are drugs…   A. Produced naturally by microbes B. Taken orally, not injected. C. Used to treat any microbial infection D. Used to treat any bacterial disease.
Drugs are often given to patients before going into surgery, to dentalpatients with heart disease, or to healthy family members exposed tocontagious infections.a. What word would you use to describe this use of drugs?b. What is the purpose of this form of treatment?c. Explain some potential undesired effects of this form of therapy.d. Define probiotics and list some ways they are used.
Toll-like receptors (TLRS) act to A. cause phagocytic chemotaxis. B. induce phagocytosis. C. bind microbial proteins and polysaccharides. D. destroy microbial cells. You may select zero, one, or many answers.

Chapter 12 Solutions

GEN COMBO LOOSELEAF MICROBIOLOGY:A SYSTEMS APPROACH; CONNECT ACCESS CARD

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