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1Bacteria are protected from harsh environmental conditions by a glycocalyx or capsule. Which of these protective layers is thicker and more organized?
A)Glycocalyx
B)Capsule



2What are bacterial capsules usually composed of?
A)Repeating phosopholipids
B)Repeating amino acids and/or salts
C)Repeating polysaccharide molecules and/or proteins
D)Repeating monosaccharide molecules and/or hydrophilic molecules



3White blood cells that engulf and destroy bacteria are called ________.
A)Phagocytes
B)Lymphocytes
C)Granulocytes



4Nonencapsulated bacterial cells appear ______ in a properly prepared capsular stain.
A)Purple
B)Gray
C)Clear



5In capsular staining which of the following steps could result in a halo around the cells that could be mistaken for a capsule?
A)Using India ink to obliterate the background
B)Heat fixation of the slide
C)Using crystal violet to stain the bacterial cell







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