List two organs contained in the abdominal cavity.
The abdominal cavity contains the stomach, intestines, spleen and liver
Question 2
5 / 5
... [Show More] 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
5 / 5 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
5 / 5 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
5 / 5 pts
Note: Essay answers must clearly be in your own words.
Explain what happens to the soft palate during swallowing. Why? The upward movement of the soft palate prevents food or liquid from entering the nasal passages during swallowing.
Question 6
3 / 3 pts
Air and food pass in which one of the following areas:
Trachea
Nasopharynx
Oropharynx
Alveoli
Label B- ___________
Label D- __________
Label E- __________
Label F- __________
Label G- __________
Label B- Oral Cavity
Label D- Epiglottis
Label E- Glottis
Label F- Trachea
Label G- Esophagus
Question 8
2 / 2 pts
From widest to narrowest, the branches of the bronchial tree are:
Correct!
Primary bronchi, secondary bronchi, tertiary bronchi, bronchioles
Bronchioles, primary bronchi, secondary bronchi, tertiary bronchi
Tertiary bronchi, secondary bronchi, primary bronchi, bronchioles
Secondary bronchi, tertiary bronchi, primary bronchi, bronchioles
Question 9
5 / 5 pts
Explain why someone who has hypergastrinemia (excessive secretion of gastrin) might develop gastric/stomach ulcers. Gastrin stimulates the secretions of pepsinogens and hydrochloric acid. Excess amounts would lead to erosion of the stomach lining.
Question 10
5 / 5 pts
Look carefully at the diagram below. Label the following 5 organs of the digestive system.
To receive credit for the intestines you must label the specific region.
3: ___________
4: ___________
7: ___________
9: ___________
10: ___________ [Show Less]