Question 1
pts
List two organs contained in the pelvic cavity.
The pelvic cavity contains the bladder, reproductive organs and the rectum
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)
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?
, (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.
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 epiglottis during swallowing. Why?
The trachea is closed by the epiglottis. The epiglottis moves inferiorly, covering the trachea.
This is to prevent food or liquid from entering the lungs.
Question 6
pts
Air and food pass in which one of the following areas:
Trachea
Nasopharynx
Correct!
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