Chapter 02- Viewing the Microbial World

Chapter 02- Viewing the Microbial World

Complete Chapter Questions With Answers

Sample Questions Are Posted Below

1. A millimeter is equivalent to how many
nanometers?
A) 1,000
B) 10,000
C) 100,000
D) 1,000,000
2.
Assume that a pinhead is 1 mm in diameter.
How many spherical bacteria (cocci), lined up
side-by-side, would fit across the pinhead.
(Hint: Use information from Table 2-1.)
A) 100
B) 1,000
C) 10,000
D) 100,000
3. What is the length of an average rod-shaped
bacterium (bacillus)?
A) 3 μm
B) 3 nm
C) 0.3 mm
D) 0.03 mm
4.
What is the total magnification when using
the high-power (high-dry) objective of a
compound light microscope equipped with a
× 10 ocular lens?
A) 40
B) 50
C) 100
D) 400
5.
How many times better is the resolution of the
transmission electron microscope than the
resolution of the unaided human eye?
A) 1,000
B) 10,000
C) 100,000

Answer Key
1. D
2. B
3. A
4. D
5. D