|
1.1 The study of life Read Online
Viewed from space, Earth offers no clues about the diversity of life forms that reside there. The first forms of life on Earth are thought to have been microorganisms that existed for billions of years in the ocean before plants and animals appeared. The mammals, birds, and flowers so familiar to us are all relatively recent, originating 130 to 200 million years ago. Humans have inhabited this planet for only the last 2.5 million years, and only in the last 200,000 years have humans started looking like we do today.
Chapter 42: The Immune System MCQ Multiple Choices Questions Quiz Test Bank
42.1 Innate Immune Response
42.2 Adaptive Immune Response
42.3 Antibodies
42.4 Disruptions in the Immune System
Download MCQ Quiz PDF eBook
Question: A memory B cell can differentiate upon reexposure to a pathogen of which cell type?
Choices:
CTL
naive B cell
memory T cell
plasma cell
Question: Which immune cells bind MHC molecules on APCs via CD8 coreceptors on their cell surfaces?
Choices:
TH cells
CTLs
mast cells
basophils
Question: Which of the following is both a phagocyte and an antigen-presenting cell?
Choices:
NK cell
eosinophil
neutrophil
macrophage
Question: The acquired ability to prevent an unnecessary or destructive immune reaction to a harmless foreign particle, such as a food protein, is called ________.
Choices:
the TH2 response
allergy
immune tolerance
autoimmunity
Question: The structure of an antibody is similar to the extracellular component of which receptor?
Choices:
MHC I
MHC II
BCR
none of the above
Question: Although interferons have several effects, they are particularly useful against infections with which type of pathogen?
Choices:
bacteria
viruses
fungi
helminths
Question: Which of the following is a barrier against pathogens provided by the skin?
Choices:
high pH
mucus
tears
desiccation
Question: What "self" pattern is identified by NK cells?
Choices:
altered self
missing self
normal self
non-self
Question: Which innate immune system component uses MHC I molecules directly in its defense strategy?
Choices:
macrophages
neutrophils
NK cells
interferon
Question: Which organelle do phagocytes use to digest engulfed particles?
Choices:
lysosome
nucleus
endoplasmic reticulum
mitochondria
Question: Foreign particles circulating in the blood are filtered by the ________.
Choices:
spleen
lymph nodes
MALT
lymph
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|