BIOS 242 WEEK 2 QUIZ
uestion 1
pts
(TCO 3) Which of the following is a magnifying lens?
Objective
Ocular
Condenser
Dark-field stop
Correct!
Both the objective and the ocular
Chapter 4: Microscopy, Staining, and Classification
Question 2
pts
(TCO 3) The microscope preferred for viewing living specimens is the _____
microscope.
You Answered
bright-field
Correct Answer
phase-contrast
scanning electron
, scanning tunneling
transmission electron
Chapter 4: Microscopy, Staining, and Classification
Question 3
pts
(TCO 3) If a microbiology lab technician left the safranin out of the Gram stain
procedure, what would be the result?
All cells would be purple.
Correct!
Gram-positive cells would be purple, and Gram-negative cells would be colorless.
All cells would be pink.
Gram-positive cells would be pink, and Gram-negative cells would be purple.
Gram-positive cells would be colorless, and Gram-negative cells would be pink.
Chapter 4: Microscopy, Staining, and Classification
Question 4
pts
(TCO 3) The rules of naming organisms are called _____.
taxonomy
Correct!
uestion 1
pts
(TCO 3) Which of the following is a magnifying lens?
Objective
Ocular
Condenser
Dark-field stop
Correct!
Both the objective and the ocular
Chapter 4: Microscopy, Staining, and Classification
Question 2
pts
(TCO 3) The microscope preferred for viewing living specimens is the _____
microscope.
You Answered
bright-field
Correct Answer
phase-contrast
scanning electron
, scanning tunneling
transmission electron
Chapter 4: Microscopy, Staining, and Classification
Question 3
pts
(TCO 3) If a microbiology lab technician left the safranin out of the Gram stain
procedure, what would be the result?
All cells would be purple.
Correct!
Gram-positive cells would be purple, and Gram-negative cells would be colorless.
All cells would be pink.
Gram-positive cells would be pink, and Gram-negative cells would be purple.
Gram-positive cells would be colorless, and Gram-negative cells would be pink.
Chapter 4: Microscopy, Staining, and Classification
Question 4
pts
(TCO 3) The rules of naming organisms are called _____.
taxonomy
Correct!