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BIOS 242 Midterm Exam Questions and Answers (Retired Syllabus) $15.49   Add to cart

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BIOS 242 Midterm Exam Questions and Answers (Retired Syllabus)

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BIOS 242 Midterm Exam Questions and Answers (Retired Syllabus)

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  • February 21, 2022
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  • 2021/2022
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BIOS 242 Midterm Exam Questions and Answers (Retired Syllabus)


1. Question : Antoni van Leeuwenhoek was the first person in history to

Student Answer:
use a magnifying glass.

develop a taxonomic system.

view protozoa and bacteria.

disprove spontaneous generation.

prove the germ theory.

Points Received: 0 of 1
Comments:


Question 2 Question : Microbes that can live in the presence or absence of oxygen are
. called

Student Answer:
anaerobes.

facultative anaerobes.

obligate parasites.

archaea.

prokaryotes.

Points Received: 1 of 1
Comments:


Question 3 Question : Which of the following scientists provided evidence in favor of
. the concept of spontaneous generation?

Student Answer:
Pasteur

Needham

Redi

, Buchner

Spallanzani

Points Received: 0 of 1
Comments:


Question 4 Question : The microbial production of alcohol from sugar is known as
.

Student Answer:
fermentation.

pasteurization.

metabolism.

abiogenesis.

antisepsis.

Points Received: 1 of 1
Comments:


Question 5 Question : Which of the following statements concerning Koch's postulates
. is false?

Student Answer:
Koch's postulates cannot be used to demonstrate the cause of
all diseases.

A suspected pathogen must be able to be grown in the
laboratory.

All of Koch's postulates must be satisfied before an
organism can be proven to cause a particular disease.

Koch's postulates involve the experimental infection of
susceptible hosts.

A suspected pathogen must be found in the majority of
individuals with a particular disease.

Points Received: 0 of 1

, Comments:


Question 6 Question : The study of the body's defenses against pathogens is called
.

Student Answer:
etiology.

immunology.

chemotherapy.

molecular biology.

epidemiology.

Points Received: 1 of 1
Comments:


Question 7 Question : Which of the following is NOT a characteristic of viruses?
.

Student Answer:
they are visible with a light microscope.

they are acellular.

they are composed of genetic material and protein.

they are smaller than prokaryotic cells.

they are obligatory parasites.

Points Received: 1 of 1
Comments:


Question 8 Question : Saccharomyces cerevisiae is an example of which of the
. following types of microbes?

Student Answer:
fungus

protozoan

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