Graded Exam 4 - Graded Exam 4 Question 1 Correct 4.50 points ou...

l OM oAR cP SD | 21 95 3 57 5 Graded Exam 4

Question 1 Correct

4.50 points out of 4.50

The initial, brief period of early, general symptoms such as fatigue and muscle aches is the .

Select one:

• prodromal stage
• convalescent stage
• incubation period
• period of invasion

BIO 250 EXAM 4 UNIT 15 DIAGNOSING INFECTIONS

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BIO250_Saylor_V5 | Unit 15: Diagnosing Infections

Started on April 18, 2024, 5:07 PM

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Completed on April 18, 2024 5:25 PM

Time taken 17 mins 47 secs Grade 85.50 out of 90.00 (95%)

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l OM oAR cP SD | 21 95 3 57 5 Graded Exam 4

Question 3 Correct

4.50 points out of 4.50

Each of the following is a mechanism for drug resistance transfer between microorganisms, except .

Select one:

• transposons
• R-plasmids
• conjugation
• mutation

2/9

Which of the following is true regarding the use of osmotic pressure as an antimicrobial agent?

Select one:

• Exposing a microbe to a hypertonic environment draws water out of the cell,

causing plasmolysis.

• Salt is an effective solute to create an osmotic pressure gradient outside of

a cell; however, the use of sugar, such as in jams and jellies, works via a different mechanism.

• Salts and sugars external to a microbe create a hypotonic environment,

which causes lysis of the cell.

• Exposing organisms to the air on a benchtop so they completely dry out is

an example of using osmotic pressure as a means of microbial control.Question 2 Correct

4.50 points out of 4.50

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