Latoya Paul LSU Bio 1002 Exam 3
Questions All Solved Correct.
Microbes - Answer Include microscopic living organisms such as bacteria, protists, many
fungi, and viruses. Most live in water or soil, most living in animal bodies do no harm and may
be beneficial
Pathogenic - Answer "to produce disease"
Cholera - Answer Spreads by entering the water supply via diarrhea, victim often dies of
dehydration
Emerging Infectious Diseases - Answer New pathogens, or new more deadly strains of
familiar pathogens (measles,plague,chicken pox, etc.)
Staphyloccus aureus ("staph") - Answer Occur frequently (usually harmlessly) on the skin
and nasal passages, but if it penetrates through the skin or mucus membranes some strains can
cause fatal toxic shock syndrome or prolonged infections
Non-specific external barriers - Answer skin, mucus membranes
Non-specidic internal barriers OR Innate Immune Respone - Answer Phagocytic and natural
killer cells, inflammation, fever
Specific internal barriers OR Adaptive Immune Response - Answer develops over time, cell-
mediated immunity, humoral immunity; "remembers" invaders
Neutrophils - Answer White blood cells that engulf invading microbes
Dendritic cells/Macrophages - Answer White blood cells that engulf invading microbes and
present antigens to lymphocytes
Natural Killer cells - Answer White blood cells that destroy infected or cancerous cells
B cells - Answer White blood cells that produce antibodies
T cells - Answer White blood cells that regulate the immune response or kill infected cells or
cancerous cells
, Fever - Answer Slows down microbial reproduction and enhances the bodys own fighting
abilities
Inflammatory response - Answer Walls off the injured area, isolating the infected tissue from
the rest of the body
Histamine - Answer Relaxes the smooth muscle surrounding arterioles, thereby increasing
blood flow, and makes capillary walls leaky. Extra blood flowing through leaky capillaries drives
fluid from the blood into the wounded area.
Lymph Nodes - Answer Swelling is caused by accumulation of white blood
cells,bacteria,debris from dead cells, and fluid in the process of combating an infection
Spleen - Answer Filters blood, exposing it to white blood cells that destroy foreign particles
and aged red blood cells
Humoral Immunity - Answer provides by B cells and the antibodies that they secrete into the
blood stream which attack pathogens that are outside the body's cells
Cell-mediated Immunity - Answer produced by a type of T cell called the cytotoxic T cell
which attacks infected body cells, killing both the cell and pathogen inside it
Acquired immunity - Answer A second exposure activates memory cells formed during the
first response, making the second response both faster and larger
Allergies - Answer Immune system's reactions to harmless substances that are treated as if
they were pathogens
Autoimmune disease - Answer the immune system attacks a component of ones own body
that it recognizes as foreign
Ex. diabetes, arthritis, multiple-sclerosis
Oxytocin - Answer stimulates the contraction of the uterine muscles during childbirth
because these muscle cells have receptors that bind to oxytocin
Endocrine gland - Answer well defined cluster of cells whose principal function is hormone
secretion, as is the case with the thyroid and pituitary glands
Questions All Solved Correct.
Microbes - Answer Include microscopic living organisms such as bacteria, protists, many
fungi, and viruses. Most live in water or soil, most living in animal bodies do no harm and may
be beneficial
Pathogenic - Answer "to produce disease"
Cholera - Answer Spreads by entering the water supply via diarrhea, victim often dies of
dehydration
Emerging Infectious Diseases - Answer New pathogens, or new more deadly strains of
familiar pathogens (measles,plague,chicken pox, etc.)
Staphyloccus aureus ("staph") - Answer Occur frequently (usually harmlessly) on the skin
and nasal passages, but if it penetrates through the skin or mucus membranes some strains can
cause fatal toxic shock syndrome or prolonged infections
Non-specific external barriers - Answer skin, mucus membranes
Non-specidic internal barriers OR Innate Immune Respone - Answer Phagocytic and natural
killer cells, inflammation, fever
Specific internal barriers OR Adaptive Immune Response - Answer develops over time, cell-
mediated immunity, humoral immunity; "remembers" invaders
Neutrophils - Answer White blood cells that engulf invading microbes
Dendritic cells/Macrophages - Answer White blood cells that engulf invading microbes and
present antigens to lymphocytes
Natural Killer cells - Answer White blood cells that destroy infected or cancerous cells
B cells - Answer White blood cells that produce antibodies
T cells - Answer White blood cells that regulate the immune response or kill infected cells or
cancerous cells
, Fever - Answer Slows down microbial reproduction and enhances the bodys own fighting
abilities
Inflammatory response - Answer Walls off the injured area, isolating the infected tissue from
the rest of the body
Histamine - Answer Relaxes the smooth muscle surrounding arterioles, thereby increasing
blood flow, and makes capillary walls leaky. Extra blood flowing through leaky capillaries drives
fluid from the blood into the wounded area.
Lymph Nodes - Answer Swelling is caused by accumulation of white blood
cells,bacteria,debris from dead cells, and fluid in the process of combating an infection
Spleen - Answer Filters blood, exposing it to white blood cells that destroy foreign particles
and aged red blood cells
Humoral Immunity - Answer provides by B cells and the antibodies that they secrete into the
blood stream which attack pathogens that are outside the body's cells
Cell-mediated Immunity - Answer produced by a type of T cell called the cytotoxic T cell
which attacks infected body cells, killing both the cell and pathogen inside it
Acquired immunity - Answer A second exposure activates memory cells formed during the
first response, making the second response both faster and larger
Allergies - Answer Immune system's reactions to harmless substances that are treated as if
they were pathogens
Autoimmune disease - Answer the immune system attacks a component of ones own body
that it recognizes as foreign
Ex. diabetes, arthritis, multiple-sclerosis
Oxytocin - Answer stimulates the contraction of the uterine muscles during childbirth
because these muscle cells have receptors that bind to oxytocin
Endocrine gland - Answer well defined cluster of cells whose principal function is hormone
secretion, as is the case with the thyroid and pituitary glands
