ASU BIO 181 Exam 2
ASU BIO 181 EXAM 2 NEWEST 2025 COMPLETE 100
QUESTIONS AND CORRECT ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+
When immune cells mature and can recognize trans-membrane proteins indicating "self", this is
called ______________. - ANSWER-Tolerance
Lymphatic tissue is composed of the following five components. Please list them. - ANSWER-
Bone Marrow, Thymus, Spleen, Lymph Nodes, Lymphatic Ducts
T/F A bacterium coated by antibodies is a signal that a macrophage should endocytose (eat) it -
ANSWER-True
T/F Red blood cells originate from the bone marrow. - ANSWER-True
T/F Lymph nodes are a place where cells of the immune system accumulate and share
information. - ANSWER-True
T/F Any cell can present an antigen on a class I major histocompatibility complex (MHC) protein.
- ANSWER-True
When a B cell is shown an antigen on a class II major histocompatibility complex (MHC) protein
it will go through ______________ ______________ and B cells subsequently can become
______________ and/or ______________ ______________. - ANSWER-Blast Transformation,
Plasma Cells, Memory Cells
T/F Bone marrow is a site where mature immune cells are found. - ANSWER-False
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, ASU BIO 181 Exam 2
T/F There are times when the spleen can be considered to be the primary lymph node. -
ANSWER-True
T/F The humoral immune system involves cells in the immune system. - ANSWER-True
T/F Any cell can present an antigen on a class II major histocompatibility complex (MHC)
protein. - ANSWER-False
T/F Memory cells "remember" the antigen and make a faster and greater response the next
time the antigen is encountered. - ANSWER-True
T/F Red blood cells are a part of the immune system - ANSWER-False
T/F
Memory cells "remember" the antigen and make a faster and greater response the next time
the antigen is encountered. - ANSWER-True
T/F In 1 mL of blood, there are 1.5 million white blood cells - ANSWER-False
T/F
B and T cells are called lymphocytes - ANSWER-True
In the lecture we discussed normal flora, this refers to: - ANSWER-Bacteria and Fungi on the
surface of the body that compete against pathogens.
Inflammation is caused by an increased blood supply due to ______________ released by some
cells of the immune system. - ANSWER-Histamine
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, ASU BIO 181 Exam 2
T/F Epithelial cells serve as a barrier to prevent non-specific movement of chemicals from one
side of the epithelium to the other side. - ANSWER-True
The molecular seal that serves as the barrier is called a _____________ _____________. While
this is a good barrier, such barriers are not very strong and must be underlined by
_____________ _____________. - ANSWER-Tight Junction, Adhering Junction
Adhering junctions are based on two different types of cytoskeleton filament systems. Name
those systems. - ANSWER-Actin Filament based, Intermediate filament based
Vitamin K cannot be made by the cells of your body. Where is it made? - ANSWER-Intestinal
Bacteria & Liver
When amino acids are acquired by food because your body can't make them they are called
___________________ ___________________ ___________________. - ANSWER-Essential
Amino Acids
List the layers of the digestive track covered by a thick layer of mucous. - ANSWER-The only
layer of the Digestive Tract that secretes and has mucous is the Mucosa layer
List the order in which storage compounds are utilized if there is no intake of food. - ANSWER-
Glycogen and Fat, then protein
What is bile made from? And how does oatmeal reduce cholesterol levels? - ANSWER-Bile is
made from cholesterol, and some kinds of fiber (like oatmeal) will bind with bile, decreasing its
absorption and lowering cholesterol levels.
How does the pancreas neutralize the pH of the chyme that comes from the stomach? -
ANSWER-Bicarbonate Ion Secretions
3|Page
ASU BIO 181 EXAM 2 NEWEST 2025 COMPLETE 100
QUESTIONS AND CORRECT ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+
When immune cells mature and can recognize trans-membrane proteins indicating "self", this is
called ______________. - ANSWER-Tolerance
Lymphatic tissue is composed of the following five components. Please list them. - ANSWER-
Bone Marrow, Thymus, Spleen, Lymph Nodes, Lymphatic Ducts
T/F A bacterium coated by antibodies is a signal that a macrophage should endocytose (eat) it -
ANSWER-True
T/F Red blood cells originate from the bone marrow. - ANSWER-True
T/F Lymph nodes are a place where cells of the immune system accumulate and share
information. - ANSWER-True
T/F Any cell can present an antigen on a class I major histocompatibility complex (MHC) protein.
- ANSWER-True
When a B cell is shown an antigen on a class II major histocompatibility complex (MHC) protein
it will go through ______________ ______________ and B cells subsequently can become
______________ and/or ______________ ______________. - ANSWER-Blast Transformation,
Plasma Cells, Memory Cells
T/F Bone marrow is a site where mature immune cells are found. - ANSWER-False
1|Page
, ASU BIO 181 Exam 2
T/F There are times when the spleen can be considered to be the primary lymph node. -
ANSWER-True
T/F The humoral immune system involves cells in the immune system. - ANSWER-True
T/F Any cell can present an antigen on a class II major histocompatibility complex (MHC)
protein. - ANSWER-False
T/F Memory cells "remember" the antigen and make a faster and greater response the next
time the antigen is encountered. - ANSWER-True
T/F Red blood cells are a part of the immune system - ANSWER-False
T/F
Memory cells "remember" the antigen and make a faster and greater response the next time
the antigen is encountered. - ANSWER-True
T/F In 1 mL of blood, there are 1.5 million white blood cells - ANSWER-False
T/F
B and T cells are called lymphocytes - ANSWER-True
In the lecture we discussed normal flora, this refers to: - ANSWER-Bacteria and Fungi on the
surface of the body that compete against pathogens.
Inflammation is caused by an increased blood supply due to ______________ released by some
cells of the immune system. - ANSWER-Histamine
2|Page
, ASU BIO 181 Exam 2
T/F Epithelial cells serve as a barrier to prevent non-specific movement of chemicals from one
side of the epithelium to the other side. - ANSWER-True
The molecular seal that serves as the barrier is called a _____________ _____________. While
this is a good barrier, such barriers are not very strong and must be underlined by
_____________ _____________. - ANSWER-Tight Junction, Adhering Junction
Adhering junctions are based on two different types of cytoskeleton filament systems. Name
those systems. - ANSWER-Actin Filament based, Intermediate filament based
Vitamin K cannot be made by the cells of your body. Where is it made? - ANSWER-Intestinal
Bacteria & Liver
When amino acids are acquired by food because your body can't make them they are called
___________________ ___________________ ___________________. - ANSWER-Essential
Amino Acids
List the layers of the digestive track covered by a thick layer of mucous. - ANSWER-The only
layer of the Digestive Tract that secretes and has mucous is the Mucosa layer
List the order in which storage compounds are utilized if there is no intake of food. - ANSWER-
Glycogen and Fat, then protein
What is bile made from? And how does oatmeal reduce cholesterol levels? - ANSWER-Bile is
made from cholesterol, and some kinds of fiber (like oatmeal) will bind with bile, decreasing its
absorption and lowering cholesterol levels.
How does the pancreas neutralize the pH of the chyme that comes from the stomach? -
ANSWER-Bicarbonate Ion Secretions
3|Page
