Multiple Choice
Cells often use ________ to move ions against their concentration gradient.
A) simple diffusion
B) facilitated diffusion
C) active transport
D) osmosis
E) cilia
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q63: The tube that connects the urinary bladder
Q64: Which produces bile?<br>A) gallbladder<br>B) liver<br>C) stomach<br>D) pancreas<br>E)
Q65: Mammals excrete nitrogen wastes as what?<br>A) ammonia<br>B)
Q66: Animals that eat a broad variety of
Q67: Ammonia is toxic and must be secreted
Q69: Botulism is caused by an infection with
Q70: The chemical composition of urine reflects the
Q71: Most multivitamins should be taken with a
Q72: The semisolid mass of food and gastric
Q73: Which is caused by a vitamin C