BSCi106 Quiz No. 3

BSCi106 Quiz No. 3

University

22 Qs

quiz-placeholder

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BSCi106 Quiz No. 3

BSCi106 Quiz No. 3

Assessment

Quiz

Biology

University

Hard

Created by

Cindy Armada

Used 5+ times

FREE Resource

22 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Bacteria isolated from a hot tub at 39 °C are probably which of the following?

thermophiles

psychrotrophs

mesophiles

basophiles

hyperthermophiles

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which of the following is the reason jams and dried meats often do not require refrigeration to prevent spoilage?

low pH

toxic alkaline chemicals

naturally occurring antibiotics

low water activity

high pH

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

A soup container was forgotten in the refrigerator and shows contamination. The contaminants are probably which of the following?

 thermophiles

 acidophiles

mesophiles

psychrotrophs

basophiles

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

 In which environment are you most likely to encounter an acidophile?

human blood at pH 7.2

a hot vent at pH 1.5

human intestine at pH 8.5

milk at pH 6.5         

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Pseudomonas aeruginosa is a common pathogen that infects the airways of patients with cystic fibrosis. It does not grow in the absence of oxygen. The bacterium is probably which of the following?

an aerotolerant anaerobe

an obligate aerobe

an obligate anaerobe

a facultative anaerobe

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which of the following is suitable for use on tissues for microbial control to prevent infection?

disinfectant

antiseptic

sterilant

 water

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which of the following best describes a microbial control protocol that inhibits the growth of molds and yeast?

bacteriostatic

fungicidal

bactericidal

fungistatic

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