Exsc 223 -Thompson Final- cumulative
T/F Questions with Solved Solutions
2026 Updated.
Positive feedback mechanisms tend to increase the original stimulus. - Answer True
Imaging is useful in discovering obstructed blood supplies in organs and tissues. - Answer
True
The anatomical position means the body is standing at attention with the palms facing forward
and
the thumbs pointing away from the body. - Answer True
The elbow is proximal to the shoulder. - Answer False, distal
The serous membrane that lines the peritoneal cavity wall is called visceral peritoneum. -
Answer False, the parietal peritoneum
A major function of serous membranes is to decrease friction. - Answer True
The right hypochondriac region contains the majority of the stomach. - Answer False,
epigastric region
Lungs carry out an excretory function. - Answer True
Embryology concerns the structural changes that occur in an individual from conception
through old age. - Answer False, embryology is the study of prenatal development of
gametes
A tissue consists of groups of similar cells that have a common function. - Answer True
It is important for any organism to maintain its boundaries, so that its internal environment
remains distinct from the external environment surrounding it. - Answer True
Without some sort of negative feedback mechanism, it would be impossible to keep our body
chemistry in balance. - Answer True
,Regardless of the variable being regulated, all homeostatic control mechanisms have at least
three interdependent components. - Answer True
The epigastric region is located superior to the umbilical region. - Answer True
The atomic weight is only an average of relative weights of an atom and its isotopes, and it may
vary from the weight of a specific isotope. - Answer True
Emulsions and colloids are the same thing. - Answer True
Chemical properties are determined primarily by neutrons. - Answer False, determined by
number of valence electrons
A charged particle is generally called an ion. - Answer True
Isotopes differ from each other only in the number of electrons contained. - Answer False,
differ in number of neutrons so atomic number is different
About 60% to 80% of the volume of most living cells consists of organic compounds. - Answer
False, water
Lipids are a poor source of stored energy. - Answer False
Current information theorizes that omega-3 fatty acids decrease the risk of heart disease. -
Answer True
Glucose is an example of a monosaccharide. - Answer True
A molecule consisting of one carbon atom and two oxygen atoms is correctly written as CO2. -
Answer True
The lower the pH, the higher the hydrogen ion concentration. - Answer True, high hydrogen
levels means v acidic
Covalent bonds are generally less stable than ionic bonds. - Answer False, covalent bonds are
more stable
, Hydrogen bonds are comparatively strong bonds. - Answer False, covalent is strongest, then
ionic, then hydrogen
The fact that no chemical bonding occurs between the components of a mixture is the chief
difference between mixtures and compounds. - Answer True
Alpha particles, although relatively weak energy particles, are second only to smoking as a cause
of lung cancer. - Answer True
All organic compounds contain carbon. - Answer True
A dipeptide can be broken into two amino acids by dehydration synthesis. - Answer False,
broken down by hydrolysis
The pH of body fluids must remain fairly constant for the body to maintain homeostasis. -
Answer True
Mixtures are combinations of elements or compounds that are physically blended together but
are not bound by chemical bonds. - Answer True
Buffers resist abrupt and large changes in the pH of the body by releasing or binding ions. -
Answer True
No chemical bonding occurs between the components of a mixture. - Answer True
Each daughter cell resulting from mitotic cell division has exactly as many chromosomes as the
parent cell. - Answer True
Apoptosis is programmed cell suicide, but cancer cells fail to undergo apoptosis. - Answer
True
DNA contains "dark matter" that codes for specific structural proteins. - Answer False, dark
matter is genetical material that doesn't code for proteins
Final preparation for cell division is made during the cell life cycle subphase called G2. - Answer
True
Chromatin consists of DNA and RNA. - Answer False, DNA and protein
T/F Questions with Solved Solutions
2026 Updated.
Positive feedback mechanisms tend to increase the original stimulus. - Answer True
Imaging is useful in discovering obstructed blood supplies in organs and tissues. - Answer
True
The anatomical position means the body is standing at attention with the palms facing forward
and
the thumbs pointing away from the body. - Answer True
The elbow is proximal to the shoulder. - Answer False, distal
The serous membrane that lines the peritoneal cavity wall is called visceral peritoneum. -
Answer False, the parietal peritoneum
A major function of serous membranes is to decrease friction. - Answer True
The right hypochondriac region contains the majority of the stomach. - Answer False,
epigastric region
Lungs carry out an excretory function. - Answer True
Embryology concerns the structural changes that occur in an individual from conception
through old age. - Answer False, embryology is the study of prenatal development of
gametes
A tissue consists of groups of similar cells that have a common function. - Answer True
It is important for any organism to maintain its boundaries, so that its internal environment
remains distinct from the external environment surrounding it. - Answer True
Without some sort of negative feedback mechanism, it would be impossible to keep our body
chemistry in balance. - Answer True
,Regardless of the variable being regulated, all homeostatic control mechanisms have at least
three interdependent components. - Answer True
The epigastric region is located superior to the umbilical region. - Answer True
The atomic weight is only an average of relative weights of an atom and its isotopes, and it may
vary from the weight of a specific isotope. - Answer True
Emulsions and colloids are the same thing. - Answer True
Chemical properties are determined primarily by neutrons. - Answer False, determined by
number of valence electrons
A charged particle is generally called an ion. - Answer True
Isotopes differ from each other only in the number of electrons contained. - Answer False,
differ in number of neutrons so atomic number is different
About 60% to 80% of the volume of most living cells consists of organic compounds. - Answer
False, water
Lipids are a poor source of stored energy. - Answer False
Current information theorizes that omega-3 fatty acids decrease the risk of heart disease. -
Answer True
Glucose is an example of a monosaccharide. - Answer True
A molecule consisting of one carbon atom and two oxygen atoms is correctly written as CO2. -
Answer True
The lower the pH, the higher the hydrogen ion concentration. - Answer True, high hydrogen
levels means v acidic
Covalent bonds are generally less stable than ionic bonds. - Answer False, covalent bonds are
more stable
, Hydrogen bonds are comparatively strong bonds. - Answer False, covalent is strongest, then
ionic, then hydrogen
The fact that no chemical bonding occurs between the components of a mixture is the chief
difference between mixtures and compounds. - Answer True
Alpha particles, although relatively weak energy particles, are second only to smoking as a cause
of lung cancer. - Answer True
All organic compounds contain carbon. - Answer True
A dipeptide can be broken into two amino acids by dehydration synthesis. - Answer False,
broken down by hydrolysis
The pH of body fluids must remain fairly constant for the body to maintain homeostasis. -
Answer True
Mixtures are combinations of elements or compounds that are physically blended together but
are not bound by chemical bonds. - Answer True
Buffers resist abrupt and large changes in the pH of the body by releasing or binding ions. -
Answer True
No chemical bonding occurs between the components of a mixture. - Answer True
Each daughter cell resulting from mitotic cell division has exactly as many chromosomes as the
parent cell. - Answer True
Apoptosis is programmed cell suicide, but cancer cells fail to undergo apoptosis. - Answer
True
DNA contains "dark matter" that codes for specific structural proteins. - Answer False, dark
matter is genetical material that doesn't code for proteins
Final preparation for cell division is made during the cell life cycle subphase called G2. - Answer
True
Chromatin consists of DNA and RNA. - Answer False, DNA and protein
