OpenStax Microbiology Test Bank Chapter 21: Skin and Eye Infections
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Module
OpenStax Microbiology
Institution
OpenStax Microbiology
OpenStax Microbiology Test Bank Chapter 21: Skin and Eye Infections
* = Correct answer Multiple Choice
1. The top part of the skin, which is exposed to the environment, is called:
A. adipose tissue
B. the dermis
C. the epidermis*
D. the hypodermis
2. Which bacterial genus is commonly ass...
OpenStax Microbiology Test Bank Chapter 21: Skin and
Eye Infections
* = Correct answer
Multiple Choice
1. The top part of the skin, which is exposed to the environment, is called:
A. adipose tissue
B. the dermis
C. the epidermis*
D. the hypodermis
2. Which bacterial genus is commonly associated with acne?
A. Candida
B. Clostridium
C. Propionibacterium*
D. Salmonella
3. Papillomas are also known as:
A. comedones
B. pustules
C. urticaria
D. warts*
4. Tinea corporis is also known as:
A. conjunctivitis
B. ringworm*
C. viral keratitis
D. warts
5. The conjunctiva is the:
A. boundary of the lens of the eye
B. layer of mucus covering the eye
C. layer of tissue surrounding the entire eye
D. mucous membranes of the eye*
6. A deep lesion that develops from multiple boils is called a:
A. carbuncle*
B. furuncle
C. macule
D. pustule
, 7. Systemic symptoms are most likely to develop with a:
A. carbuncle*
B. comedo
C. cyst
D. pustule
8. Which of the following describes impetigo?
A. a highly contagious infection caused by Staphylococcus aureus and
Streptococcus pyogenes that causes vesicles, pustules, and bullae*
B. a mild and self-limiting viral infection that can be caused by a wide range of
infectious agents
C. a noncontagious rash (not caused by an infectious agent) that spreads rapidly across the
skin
D. a systemic fungal infection caused by Candida spp. and other species that is difficult to
treat
9. Which of the following is true of the normal skin microbiota?
A. It does not change over time.
B. It is always identical in all parts of the body.
C. It varies between moist and dry areas only, but is consistent in areas of similar moisture
content.
D. It varies depending on microenvironment and is an important part of the
nonspecific immune system.*
10. One reason that the skin is inhospitable to microbes is that:
A. It is moist and hypersaline, which prevents growth by most species of microbes.
B. It is relatively lacking in salt and is hypotonic to bacteria.
C. It is relatively moist and this inhibits their growth.
D. The normal microbiota outcompetes other microbes and inhibits their growth.*
11. An important difference between sebaceous glands and sweat glands is that:
A. Sebaceous glands are not typically associated with hair follicles, whereas sweat glands
typically are associated with hair follicles.
B. Sebaceous glands are tubular and sweat glands are coiled.
C. Sweat glands are found fully within the dermis, whereas sebaceous glands are found fully
within the epidermis.
D. Sweat glands produce a watery fluid, whereas sebaceous glands produce lipid-rich
sebum.*
12. How does sebum affect microbial growth on the skin?
A. It dries out the skin, reducing the ability of microbes to grow where it is present.
B. It may aid growth by providing nutrients but also has components that inhibit
microbial growth.*
C. It only aids microbial growth, providing a source of nutrition without generally
having any harmful effects on microbes.
D. It repels microbes and they cannot grow where it is present, making it an important
part of the nonspecific immune response.
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