List two organs contained in the abdominal cavity.
The abdominal cavity contains the stomach, intestines, spleen and liver
True or False?
a. Cellular
... [Show More] respiration occurs in the mitochondria. (T or F)
b. The purpose of cellular respiration is to produce ATP. (T or F)
c. Integral proteins are only found on the inner surface of a cell membrane. (T or F)
d. Endocytosis is the process that occurs to eject biomacromolecules from the cell. (T or
F)
e. Pinocytosis uses a signaling molecule from another cell, binding to the cell
membrane to bring about changes within the cell proteins. (T or F)
a. True
b. True
c. False
d. False
e. False
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.
I believe it is the smaller cell that will breathe at a more active rate because in order for
respiration to occur efficiently and more actively the surface area to volume ratio is very
critical; also, if the larger surface area is present then the diffusion of gases occur at a
higher rate; so, larger cells will have a smaller surface to volume ratio and diffusion that
will occur at a slower rate creating a less active respiration; and, on the other hand
smaller cells will have a larger surface area to volume ratio and an improved diffusion
rate, so the higher rate and more active respiration.
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.
Note: Essay answers must clearly be in your own words.
Explain what happens to the epiglottis during swallowing. Why?
During swallowing the epiglottis moves inferiorly to close off and prevent aspiration by
covering the trachea and creating a passage for liquid, food, or bolus into the
esophagus; and, preventing these things from entering into the lungs.
Air and food pass in which one of the following areas:
Oropharynx [Show Less]