Question 1

Which of these molecules is incorrectly paired with a source?

Accepted Answer

A) lysozyme-tears 
B) interferons-virus-infected cells 
C) antibodies-B cells 
D) chemokines-cytotoxic T cells 
E) cytokines-helper T cells 
A) lysozyme-tears 
B) interferons-virus-infected cells 
C) antibodies-B cells 
D) chemokines-cytotoxic T cells 
E) cytokines-helper T cells

Question 2

Use the following information to answer the following questions.
An otherwise healthy student in your class is infected with EBV, the virus that causes infectious mononucleosis. The same student had already been infected when she was a child, and she had merely experienced a mild sore throat and swollen lymph nodes in her neck. This time, though infected, she does not get sick.
-Which cell type interacts with both the humoral and cell-mediated immune pathways?

Accepted Answer

A) plasma cells 
B) cytotoxic T cells 
C) natural killer cells 
D) CD8 cells 
E) helper T cells 
A) plasma cells 
B) cytotoxic T cells 
C) natural killer cells 
D) CD8 cells 
E) helper T cells

Question 3

Use the following information to answer the following questions.
Cave art by early humans recognized the existence of the major signs of inflammation.
-Septic shock, a systemic response including high fever and low blood pressure, can be life threatening. What causes septic shock?

Accepted Answer

A) certain bacterial infections 
B) specific forms of viruses 
C) the presence of natural killer cells 
D) a fever of >103 degrees in adults 
E) increased production of neutrophils 
A) certain bacterial infections 
B) specific forms of viruses 
C) the presence of natural killer cells 
D) a fever of >103 degrees in adults 
E) increased production of neutrophils

Question 4

The number of MHC protein combinations possible in a given population is enormous. However, an individual in that population has only a couple of MHC possibilities. Why?

Accepted Answer

A) The MHC proteins are made from several different gene regions that are capable of rearranging in a number of ways. 
B) MHC proteins from one individual can only be of class I or class II. 
C) Each of the MHC genes has a large number of alleles, but each individual only inherits 2 for each gene. 
D) Once a B cell has matured in the bone marrow, it is limited to two MHC response categories. 
E) Once a T cell has matured in the thymus, it can only respond to two MHC categories. 
A) The MHC proteins are made from several different gene regions that are capable of rearranging in a number of ways. 
B) MHC proteins from one individual can only be of class I or class II. 
C) Each of the MHC genes has a large number of alleles, but each individual only inherits 2 for each gene. 
D) Once a B cell has matured in the bone marrow, it is limited to two MHC response categories. 
E) Once a T cell has matured in the thymus, it can only respond to two MHC categories.

Question 5

Which of the following is accounted for by immunological memory?

Accepted Answer

A) the human body's ability to distinguish self from nonself 
B) the observation that some strains of the pathogen that causes dengue fever cause worse disease than others 
C) the ability of a helper T cell to signal B cells via cytokines 
D) the ancient observation that someone who had recovered from the plague could safely care for those newly diseased 
E) the ability of the immune system to present antigen fragments in association with MHC antigens 
A) the human body's ability to distinguish self from nonself 
B) the observation that some strains of the pathogen that causes dengue fever cause worse disease than others 
C) the ability of a helper T cell to signal B cells via cytokines 
D) the ancient observation that someone who had recovered from the plague could safely care for those newly diseased 
E) the ability of the immune system to present antigen fragments in association with MHC antigens

Exam 43: The Immune System

Which of these molecules is incorrectly paired with a source?

Use the following information to answer the following questions. Cave art by early humans recognized the existence of the major signs of inflammation. -Septic shock, a systemic response including high fever and low blood pressure, can be life threatening. What causes septic shock?

The number of MHC protein combinations possible in a given population is enormous. However, an individual in that population has only a couple of MHC possibilities. Why?

Which of the following is accounted for by immunological memory?

Introduction: Themes in the Study of Life

The Chemical Context of Life

Water and the Fitness of the Environment

Carbon and the Molecular Diversity of Life

The Structure and Function of Large Biological Molecules

A Tour of the Cell

Membrane Structure and Function

An Introduction to Metabolism

Cellular Respiration: Harvesting Chemical Energy

Photosynthesis

Cell Communication

The Cell Cycle

Meiosis and Sexual Life Cycles

Mendel and the Gene Idea

The Chromosomal Basis of Inheritance

The Molecular Basis of Inheritance

From Gene to Protein

Control of Gene Expression

Viruses

Biotechnology

Genomes and Their Evolution

Descent With Modification: a Darwinian View of Life

The Evolution of Populations

The Origin of Species

The History of Life on Earth

Phylogeny and the Tree of Life

Bacteria and Archaea

Protists

Plant Diversity I: How Plants Colonized Land

Plant Diversity Ii: the Evolution of Seed Plants

Fungi

An Introduction to Animal Diversity

Invertebrates

Vertebrates

Plant Structure, Growth, and Development

Transport in Vascular Plants

Soil and Plant Nutrition

Angiosperm Reproduction and Biotechnology

Plant Responses to Internal and External Signals

Basic Principles of Animal Form and Function

Animal Nutrition

Circulation and Gas Exchange

Osmoregulation and Excretion

Hormones and the Endocrine System

Animal Reproduction

Animal Development

Neurons, Synapses, and Signaling

Nervous Systems

Sensory and Motor Mechanisms

Animal Behavior

An Introduction to Ecology and the Biosphere

Population Ecology

Community Ecology

Ecosystems

Conservation Biology and Restoration Ecology

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