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QUIZ 1 BMED 4290-03B

Terms in this set (25)

A foreign substance to the body that triggers an immune response is called a(n)
ANTIGEN
A disease-causing microorganism or virus is referred to as a(n)
PATHOGEN
A prokaryotic cell may possess each of the following cellular components EXCEPT
NUCLEUS
Codons are recognized during
TRANSLATION
Which of the following statements concerning osmosis is FALSE?
During osmosis, water crosses to the side of the membrane with a lower solute concentration.
Leukocytes migrate to a site of infection in response to
CHEMOKINES
Protein synthesis occurs in the
RIBOSOME
In comparing DNA replication with RNA transcription in the same cell, which of the following is true only of replication?
The entire template molecule is represented in the product.
Examples of pathogens that cause human disease include:
a. parasites (protozoans and worms)
b. viruses
c. fungi
d. bacteria


e. All of the above are examples of pathogens that cause human disease.
Lipid-soluble molecules would be expected to cross the cytoplasmic membrane by which of the following processes?
DIFFUSION
Which of the following are characteristics of innate immunity:
INFLAMMATION
FAST RESPONSE
CYTOKINE PRODUCTION
The AUG codon functions in coding for the amino acid methionine and as a
START SIGNAL
Innate immunity
IS ACTIVATED IMMEDIATELY UPON INFECTION
One reason that pathogenic microorganisms have an advantage in the host they infect is because they:
Reproduce and evolve more rapidly than the host can eliminate them.
A macromolecule containing two fatty acids and a phosphate group is a
PHOSPHOLIPID
Which of the following statements about the endoplasmic reticulum (ER) is CORRECT?
The ER is a transport system within the cytoplasm.
Adaptive immunity is sometimes also called acquired immunity. Which of the following statements provides a basis for the alternative name?
To become activated, lymphocytes require exposure to the antigenic determinant for which they are specific.
The first step in the establishment of infection is that the organism must
ATTACH TO HOST CELLS
Which of the following pairs is mismatched?
Lymphocytes: innate immune response.
A term generally used to describe all white blood cells is _____.
LEUKOCYTES
First line of defense may be described as
Intact skin, mucous membranes, sebum, tears, and so forth.
A frameshift mutation could result from
Either an insertion or deletion of a base.
The MHC is important in a T cell's ability to
Distinguish self from nonself.
Lipid-soluble molecules would be expected to cross the cytoplasmic membrane by which of the following processes?
DIFFUSION
T cells of the immune system include
Cytotoxic and helper cells.
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