When sodium ions enter a cell
a. osmotic pressure of the cell increases.
b. water molecules accompany sodium ions.
c. the cell becomes swollen.
d. all these.
e. none of these.
D
You might also like to view...
Define the term "negative feedback."
What will be an ideal response?
HCG is secreted by the ovary.
Answer the following statement true (T) or false (F)
Which of the following is not true of the left phrenic nerve?
A) It traverses the superior mediastinum between left subclavian and common carotid arteries. B) It crosses anterior to the arch of the aorta. C) It passes posterior to the root of the left lung. D) It supplies motor fibers to the diaphragm. E) It pierces the diaphragm.
Answer the following statements true (T) or false (F)
1. All the structures of the upper respiratory tract are outside the chest cavity. 2. The respiratory membrane and respiratory mucosa are two names for the same structure. 3. The paranasal sinuses drain into the pharynx. 4. The nasal cavities assist in warming and humidifying inspired air. 5. Lacrimal sacs and paranasal sinuses both drain into the same structure.