portage learning biod 151 a & p 1 final exam
Question 1
pts
List two organs contained in the abdominal cavity.
Your Answer:
small intestine and large intestine
The abdominal cavity contains the stomach, intestines, spleen and liver
Question 2
pts
True or False?
a. The purpose of cellular respiration is to produce ADP. (T or F)
b. Peripheral proteins are found on the outer surface of a cell membrane. (T or F)
c. Exocytosis is the process that occurs to bring biomacromolecules inside the cell. (T or
F)
d. Receptor-mediated endocytosis uses a signaling molecule from another cell, binding
to the cell membrane to bring about changes within the cell proteins. (T or F)
e. Endocytosis is a passive process. It does not require cellular energy expenditure.(T
or F)
Your Answer:
a. False
b. True
c. False
d. True
e. False
a. False- (ATP is produced, not ADP)
b. True
c. False- (This process is called endocytosis)
d. True
e. False- (Endocytosis is an active process and requires cellular energy)
,Question 3
pts
Note: Essay answers must clearly be in your own words.
In your own words, discuss Tay-Sachs disease. What organelle within the cell is
impacted? What are the symptoms of the disease and why do they occur?
Your Answer:
Tay-Sachs disease impacts the lysosome of the cell. This leads to a toxic buildup of
toxins in the brain. This can lead to disability and death.
(1)Lysosomes
(2) buildup of toxic lipids inside the cell (biomacromolecules)
(3) disability and death
In the genetic disease known as Tay-Sachs, one of the normally present digestive
enzymes inside lysosomes is lacking. Thus, a toxic lipid in the brain cells cannot
be broken down. The resulting buildup of lipids in these cells can cause
intellectual disability and death.
Question 4
pts
Note: Essay answers must clearly be in your own words.
You are observing two cells under the microscope. They are the same type of
eukaryotic cell but one appears much larger. Based on appearance alone, which one
would you expect to be carrying out respiration at a more active rate, the larger or
smaller cell? Explain why.
Your Answer:
The smaller cell would carry out respiration at a more active rate. This is because of the
increased surface area compared to larger cells.
The smaller cell. Cells need to remain relatively small because as a cell expands
the amount of surface area relative to the volume of the cell decreases. The
smaller cell is more active because relative to its volume, its surface area is larger
than a bigger cell. With a larger surface area (relative to its volume) this allows
the metabolic processes to occur faster.
Question 5
pts
Note: Essay answers must clearly be in your own words.
, Explain what happens to the soft palate during swallowing. Why?
Your Answer:
During swallowing, the soft palate in blocked by the tongue. This prevents choking on
food or liquids.
The upward movement of the soft palate prevents food or liquid from entering the
nasal passages during swallowing.
Question 6
pts
Air and food pass in which one of the following areas:
Trachea
Nasopharynx
Correct!
Oropharynx
Alveoli
Question 7
pts
Label the following five items from the diagram:
Question 1
pts
List two organs contained in the abdominal cavity.
Your Answer:
small intestine and large intestine
The abdominal cavity contains the stomach, intestines, spleen and liver
Question 2
pts
True or False?
a. The purpose of cellular respiration is to produce ADP. (T or F)
b. Peripheral proteins are found on the outer surface of a cell membrane. (T or F)
c. Exocytosis is the process that occurs to bring biomacromolecules inside the cell. (T or
F)
d. Receptor-mediated endocytosis uses a signaling molecule from another cell, binding
to the cell membrane to bring about changes within the cell proteins. (T or F)
e. Endocytosis is a passive process. It does not require cellular energy expenditure.(T
or F)
Your Answer:
a. False
b. True
c. False
d. True
e. False
a. False- (ATP is produced, not ADP)
b. True
c. False- (This process is called endocytosis)
d. True
e. False- (Endocytosis is an active process and requires cellular energy)
,Question 3
pts
Note: Essay answers must clearly be in your own words.
In your own words, discuss Tay-Sachs disease. What organelle within the cell is
impacted? What are the symptoms of the disease and why do they occur?
Your Answer:
Tay-Sachs disease impacts the lysosome of the cell. This leads to a toxic buildup of
toxins in the brain. This can lead to disability and death.
(1)Lysosomes
(2) buildup of toxic lipids inside the cell (biomacromolecules)
(3) disability and death
In the genetic disease known as Tay-Sachs, one of the normally present digestive
enzymes inside lysosomes is lacking. Thus, a toxic lipid in the brain cells cannot
be broken down. The resulting buildup of lipids in these cells can cause
intellectual disability and death.
Question 4
pts
Note: Essay answers must clearly be in your own words.
You are observing two cells under the microscope. They are the same type of
eukaryotic cell but one appears much larger. Based on appearance alone, which one
would you expect to be carrying out respiration at a more active rate, the larger or
smaller cell? Explain why.
Your Answer:
The smaller cell would carry out respiration at a more active rate. This is because of the
increased surface area compared to larger cells.
The smaller cell. Cells need to remain relatively small because as a cell expands
the amount of surface area relative to the volume of the cell decreases. The
smaller cell is more active because relative to its volume, its surface area is larger
than a bigger cell. With a larger surface area (relative to its volume) this allows
the metabolic processes to occur faster.
Question 5
pts
Note: Essay answers must clearly be in your own words.
, Explain what happens to the soft palate during swallowing. Why?
Your Answer:
During swallowing, the soft palate in blocked by the tongue. This prevents choking on
food or liquids.
The upward movement of the soft palate prevents food or liquid from entering the
nasal passages during swallowing.
Question 6
pts
Air and food pass in which one of the following areas:
Trachea
Nasopharynx
Correct!
Oropharynx
Alveoli
Question 7
pts
Label the following five items from the diagram:
