BHS 316 Exam 1 Questions and
Answers 100% PASS
A vesicle inside a phagocyte that contains powerful chemicals and enzymes that
can destroy bacteria is called a: - CORRECT ANSWER-lysosome
The innate immune system includes - CORRECT ANSWER-natural killer cells,
tears, macrophages, complement proteins, mucous, skin
Put the following steps of phagocytosis in correct order, from beginning to end: -
CORRECT ANSWER-1. A phagocyte senses invader and moves towards it 2. A
phagocyte engulfs the invader 3. The phagosome fuses to the lysosome 4. The
lysosome releases digestive enzymes 5. Digestive enzymes destroy invader
Which of the following are considered white blood cells - CORRECT ANSWER-
macrophages, dendritic cells, neutrophils
Put the following steps in the life cycle of a macrophage in the correct order, from
beginning to end: - CORRECT ANSWER-1. Stem cells differentiate into
monocytes 2. Monocytes leave the bone marrow and enter the blood 3. Monocytes
travel within the blood vessels to capillaries 4. Monocytes leave capillaries and
enter tissues through cracks in endothelial cells 5. Monocytes mature into
macrophages
,During phagocytosis, the phagocyte ingests a potential invader and the resulting
vesicle containing the invader is called a: - CORRECT ANSWER-phagosome
Proteins that are secreted by macrophages (and other immune cells) to
communicate with other cells are called: - CORRECT ANSWER-cytokines
Jenner's "experiment" that showed that cowpox conferred immunity to smallpox
showcases the features of the: - CORRECT ANSWER-adaptive immune system
The first line of defense against potential pathogens is: - CORRECT ANSWER-
skin and mucous membranes
The unique capability of stem cells which make daughter cells that continue to be
stem cells is called: - CORRECT ANSWER-self-renewal
The portion of an antibody that determines its class is the: - CORRECT
ANSWER-Fc region
The method by which the 4 different gene modules are combined to make an
antibody is called: - CORRECT ANSWER-recombination
An antibody that has been anchored on the surface of a B cell is called a: -
CORRECT ANSWER-B cell receptor
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, When one single B cell is activated and turns into a plasma B cell, it produces: -
CORRECT ANSWER-Many copies of the same B-cell receptors, all of which
recognize the same antigen
In general, the function of an antibody is to: - CORRECT ANSWER-Identify
bacterial and viral invaders so other immune system components can kill them
The term that describes the chemical component (i.e., ligand) to which an antibody
binds is: - CORRECT ANSWER-antigen
Put the following steps involved in opsonization in order from beginning to end: -
CORRECT ANSWER-1. The Fab region of an antibody binds to its cognate
antigen on an invader
2.The Fc region of an antibody binds to the Fcr receptor on a phagocytic cell
3. The phagocytic cell becomes even more phagocytic
4. The invader is phagocytosed
Which of the following best describes the relationship between the DNA in
immature B cells and the DNA in mature B cells: - CORRECT ANSWER-The
DNA of all immature B cells are identical to one another, but the DNA of mature
B cells is different from the DNA in immature B cells
Put the following steps involved in clonal selection of B cells in order from
beginning to end: - CORRECT ANSWER-1. B cells attach tester antibodies to
their cell surface, turning the antibodies into B-cell receptors 2. B cells circulate in
Answers 100% PASS
A vesicle inside a phagocyte that contains powerful chemicals and enzymes that
can destroy bacteria is called a: - CORRECT ANSWER-lysosome
The innate immune system includes - CORRECT ANSWER-natural killer cells,
tears, macrophages, complement proteins, mucous, skin
Put the following steps of phagocytosis in correct order, from beginning to end: -
CORRECT ANSWER-1. A phagocyte senses invader and moves towards it 2. A
phagocyte engulfs the invader 3. The phagosome fuses to the lysosome 4. The
lysosome releases digestive enzymes 5. Digestive enzymes destroy invader
Which of the following are considered white blood cells - CORRECT ANSWER-
macrophages, dendritic cells, neutrophils
Put the following steps in the life cycle of a macrophage in the correct order, from
beginning to end: - CORRECT ANSWER-1. Stem cells differentiate into
monocytes 2. Monocytes leave the bone marrow and enter the blood 3. Monocytes
travel within the blood vessels to capillaries 4. Monocytes leave capillaries and
enter tissues through cracks in endothelial cells 5. Monocytes mature into
macrophages
,During phagocytosis, the phagocyte ingests a potential invader and the resulting
vesicle containing the invader is called a: - CORRECT ANSWER-phagosome
Proteins that are secreted by macrophages (and other immune cells) to
communicate with other cells are called: - CORRECT ANSWER-cytokines
Jenner's "experiment" that showed that cowpox conferred immunity to smallpox
showcases the features of the: - CORRECT ANSWER-adaptive immune system
The first line of defense against potential pathogens is: - CORRECT ANSWER-
skin and mucous membranes
The unique capability of stem cells which make daughter cells that continue to be
stem cells is called: - CORRECT ANSWER-self-renewal
The portion of an antibody that determines its class is the: - CORRECT
ANSWER-Fc region
The method by which the 4 different gene modules are combined to make an
antibody is called: - CORRECT ANSWER-recombination
An antibody that has been anchored on the surface of a B cell is called a: -
CORRECT ANSWER-B cell receptor
COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED
, When one single B cell is activated and turns into a plasma B cell, it produces: -
CORRECT ANSWER-Many copies of the same B-cell receptors, all of which
recognize the same antigen
In general, the function of an antibody is to: - CORRECT ANSWER-Identify
bacterial and viral invaders so other immune system components can kill them
The term that describes the chemical component (i.e., ligand) to which an antibody
binds is: - CORRECT ANSWER-antigen
Put the following steps involved in opsonization in order from beginning to end: -
CORRECT ANSWER-1. The Fab region of an antibody binds to its cognate
antigen on an invader
2.The Fc region of an antibody binds to the Fcr receptor on a phagocytic cell
3. The phagocytic cell becomes even more phagocytic
4. The invader is phagocytosed
Which of the following best describes the relationship between the DNA in
immature B cells and the DNA in mature B cells: - CORRECT ANSWER-The
DNA of all immature B cells are identical to one another, but the DNA of mature
B cells is different from the DNA in immature B cells
Put the following steps involved in clonal selection of B cells in order from
beginning to end: - CORRECT ANSWER-1. B cells attach tester antibodies to
their cell surface, turning the antibodies into B-cell receptors 2. B cells circulate in
