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36 terms

chapter 16 micro/module 11

innate immunity
STUDY
PLAY
Bacteria are first ingested into a _____ during phagocytosis.

A. phagosome

B. lysosome

C. phagolysosome

D. peroxisome
answer is:
A. phagosome
In a bacterial infection, what type of white blood cell is the first to arrive at the site of infection?

A. neutrophils

B. basophils

C. eosinophils

D. monocytes
answer is:
A. neutrophils
All of the following occur during inflammation. What is the first step?

A. Margination

B. Phagocyte migration

C. Repair

D. Vasodilation
answer is:

D. Vasodialation
Which of the following is not a physical factor to protect the skin and mucous membranes from infection?

A. Layers of cells

B. Tears

C. Saliva

D. Lysozyme
answer is:
D. Lysozyme
Which of the following statements is true?

A. There are at least 30 complement proteins.

B. complement proteins are produced by pathogenic bacteria.

C. Complement activity is antigen specific.

D. Complement increases after immunization.
answer is:
...(not B)(i think its A).
All of the following can be determined from a differential white blood cell count except _____.

A. the number of total white blood cells

B. the numbers of each type of white blood cell

C. the numbers of red blood cells

D. the type of infection or disease
answer is:
C. the numbers of red blood cells
Which of the following exhibits highest phagocytic activity?

A. neutrophils

B. basophils

C. eosinophils

D. monocytes
answer is:
A. neutrophils
Which of the following is not a chemical factor to protect the skin and mucous membranes from infection?

A. Mucus

B. Sebum

C. Gastric juices

D. Lysozyme
answer is:
A. Mucus
Which of the following is not a physical factor to protect the skin and mucous membranes from infection?

A. Keratin

B. Tears

C. Saliva

D. Lysozyme
answer Is:
D. Lysozyme
Inflammation is a ____ response to infection.

A. local

B. systemic

C. adaptive

D. specific
answer is:
A. local
Which of the following is an effect of opsonization?

A. Increased adherence of phagocytes to microbes.

B. increased motility of phagocytes.

C. Increased digestion of microbes by phagocytes.

D. Inflammation
answer is:
A. Increased adherence of phagocytes to microbes.
Macrophages arise from which of the following?

A. Basophil

B. Macrocyte

C. Monocyte

D. Neutrophil
answer is:
C. Monocyte
One of the responses against bacterial infection is the overproduction of white blood cells, which is also known as ________

A. complement activation.

B. histamine generation.

C. leukopenia.

D. leukocytosis.
answer is:
D. leukocytosis.
One of the responses against bacterial infection is the decrease in production of white blood cells, which is also known as ________

A. complement activation.

B. histamine generation.

C. leukopenia.

D. leukocytosis.
answer is:
C. leukopenia.
Adherence of phagocytes may be accomplished by all of the following except

A. Trapping a bacterium against a rough surface.

B. Opsonization.

C. Lysozyme.

D. Complement.
answer is:
... (not A)(i think its C)
What is the effect of interferons?

A. Interferes with host cell replication.

B. Interferes with phagocytosis.

C. Interferes with viral multiplication.

D. Interferes with bacterial multiplication.
answer is:
C. Interferes with viral multiplication.
Which of these is not a characteristic of innate immunity?

A. Always present, always
available

B. Has memory component

C. Acts against all microbes the same way

D. First to respond to infection
the answer is:
B. Has memory component
Which of the following choices shows the order in which white blood cells migrate to infected tissues?

A. Macrophages - monocytes

B. Lymphocytes - macrophages

C. Neutrophils - macrophages

D. Neutrophils - monocytes
answer is
... (not c) i think it is D
All of the following occur during inflammation. What is the first step?

A. Margination

B. Phagocyte migration

C. Repair

D. Vasodilation
the answer is:
D. Vasodilation
Which of the following is an effect of opsonization?

A. Increased adherence of phagocytes to microbes.

B. increased motility of phagocytes.

C. Increased digestion of microbes by phagocytes.

D. Inflammation
the answer is:

A. Increased adherence of phagocytes to microbes.
Which of the following is involved in initializing inflammation?

A. Basophil

B. Eosinophil

C. Lymphocyte

D. Monocyte

E. Neutrophil
the answer is:
(not E)
Which of the following white blood cells is most likely to be involved in the destruction of a tumor cell?

A. Macrophages

B. Lymphocytes

C. Neutrophils

D. Basophils
the answer is:
B. Lymphocytes
Neutrophils with defective lysosomes are unable to ____.

A. move by chemotaxis

B. migrate

C. produce toxic oxygen products

D. live
the answer is:
C. produce toxic oxygen products
Which one of the following is not an effect of fever?

A. Increases production of T cells.

B. Increases interferon activity.

C. Kills pathogens.

D. All are effects of fever.
the answer is:
(not D) i think it is c
Which of the following is not a function of inflammation?

A. To destroy an injurious agent

B. To remove an injurious agent

C. To wall off an injurious agent

D. None of the above
the answer is:
(not a) i think it is b
Which of the following is involved in adaptive immunity?

A. Basophil

B. Eosinophil

C. Lymphocyte

D. Monocyte

E. Neutrophil
the answer is:
C. Lymphocyte
Which of the following is not an effect of complement activation?

A. Interference with viral replication

B. Bacterial cell lysis

C. Opsonization

D. Increased phagocytic activity
the answer is:
A. Interference with viral replication
Where in the phagocyte does the microbe get digested?
A. Phagosome
B. Lysosome
C. Phagolysosome
D. Pseudopod
the answer is:
C. Phagolysosome
A fever is a _____ response to infection.

A. local

B. systemic

C. adaptive

D. specific
the answer:
B. systemic
Which of the following is found normally in serum?
A. Complement

B. Interferon

C. Histamine

D. Leukocytosis-promoting factor
the answer is:
A. Complement
Which of the following is not a chemical factor to protect the skin and mucous membranes from infection?

A. Mucus

B. Sebum

C. Gastric juices

D. Lysozyme
the answer is:
A. Mucus
The mechanism of action of interferon includes all of the following except ____.

A. it binds to the surface of uninfected cells

B. it inactivates viruses

C. it initiates manufacture of another antiviral protein

D. It works in cells not producing INF
the answer is:
(notD)
Which of the following is not a characteristic of inflammation?

A. Redness

B. Pain

C. Local heat

D. Fever
the answer is:
D. Fever
Which is not an outcome of complement activation?

A. Opsonization

B. Inflammation

C. Fever

D. Cytolysis
the answer is:
C. Fever
The first step of inflammation is vasodilation. What is the purpose of vasodilation?

A. To repair the damaged tissue.

B. To remove the
injurious agent.

C. To make the skin red at the site of infection.

D. To increase the flow of blood to the area.
the answer is:
D. To increase the flow of blood to the area.
Innate immunity is

A. The body's ability to ward off diseases.

B. The body's defenses against any kind of pathogen.

C. The body's defense against a particular pathogen.

D. The lack of resistance.
the answer is:
B. The body's defenses against any kind of pathogen.