Multiple Choice
Osmoregulators:
A) change the ECF osmotic pressure when osmotic pressure in the surrounding water changes.
B) have to regulate ICF organic osmolytes to counteract cell volume changes.
C) maintain a relatively steady ECF osmotic pressure even when the osmotic pressure changes in the external environment.
D) are hyperosmotic in marine environments.
E) are hypo-osmotic in freshwater environments..
Correct Answer:
Verified
Correct Answer:
Verified
Q2: A cold water fish will have a
Q3: The major source of hydrogen ions in
Q4: Insects prevent water loss and disturbance in
Q5: In vertebrates<br>A) the ECF and ICF have
Q6: Vasopressin and thirst are inhibited when<br>A) ECF
Q8: Hyperosmotic regulation is found in all freshwater
Q9: Marine sharks and rays<br>A) are ureosmotic conformers.<br>B)
Q10: Fresh water vertebrates<br>A) are hyper-osmotic regulators.<br>B) produce
Q11: Muscle is about _ water.<br>A) 25%<br>B) 45%<br>C)
Q12: When [H<sup>+</sup>] in the blood increases from