student view
|
instructor view
|
information center view
|
Home
Plant Anatomy
student view
How to Write a Paper
Botany Issues Map
Scientific Names
Biological Controls
Useful Plants
Houseplants
Metric Conversions
Plant Tissues
Choose an Unit
Unit 1
Unit 2
Unit 3
Unit 4
Unit 5
Unit 6
Unit 7
Unit 8
Unit 9
Unit 10
Unit 11
Unit 12
Unit 13
Unit 14
Unit 15
Unit 16
Unit 17
Unit 18
Unit 19
Unit 20
Unit 21
Unit 22
Unit 23
Unit 24
Multiple Choice Quiz
Feedback
Help Center
Preparation & Staining Techniques
Multiple Choice Quiz
1
Which is
not
a characteristic of the fixative agent,
glutaraldehyde
?
A)
An organic compound
B)
A dialdehyde
C)
A coagulant fixative
D)
Soluble in water
E)
Primarily reacts with proteins
2
Which is
not
a function of buffers?
A)
Possess cathepsins
B)
Delay process of autolysis
C)
Adjust
p
H of fixative medium
D)
Adjusts osmolarity of fixative medium
E)
A combination of weak acids and their salts
3
Which might best be a
chromophoric
group?
A)
-NH
3
B)
-SO
4
C)
-CHO
D)
HIO
4
E)
-N=N-
4
Which of the following is a
coagulant
?
A)
Ethanol
B)
Formaldehyde
C)
Glutaraldehyde
D)
Osmium tetroxide
E)
Potassium dichromate
5
Which of the following is an
acidic
dye?
A)
Basic fuchsin
B)
Crystal violet
C)
Methyl blue
D)
Methyl green
E)
Safranin
6
A primary
disadvantage
of paraffin as an embedding agent is:
A)
extracts lipids.
B)
can be cut into sections 4-5 micrometers thick.
C)
stable for a long time.
D)
may form ribbons when sectioned.
E)
ability to be used for plant anatomy.
7
The deposit
callose
is best stained with:
A)
safranin.
B)
fast green.
C)
toulidine blue-O.
D)
resourcin blue.
E)
orange-G.
8
Section thickness for transmission electron microscopy is determined by:
A)
weight.
B)
measuring in nm.
C)
interference color.
D)
ability of sections to form ribbons.
E)
their ability to float on water
9
A sliding microtome is best used for cutting:
A)
paraffin-embedded sections.
B)
ultra-thin sections for electron microscopy.
C)
serial sections.
D)
specimens embedded in soft gelatin.
E)
hard materials, such as wood.
10
The combination of a dye and a mordant is termed a(n):
A)
basic dye.
B)
auxochrome.
C)
lake.
D)
resin.
E)
buffer.
2003 McGraw-Hill Higher Education
Any use is subject to the
Terms of Use
and
Privacy Policy
.
McGraw-Hill Higher Education
is one of the many fine businesses of
The McGraw-Hill Companies
.
2003 McGraw-Hill Higher Education