Multiple Choice
Lipids often move within the body in complexes known as lipoproteins; what advantage does this strategy provide?
A) Lipids alone have high solubility in body fluids and would be difficult to transport.
B) With a protein component as an identifier, cells needing lipids can use membrane receptors and acquire only as much lipid as they need at any given moment.
C) Rather than simply diffusing into adjacent cell membranes as free lipids would do, surplus lipoproteins can be routed to the kidneys for disposal or modification.
D) Lipids associated with lipoproteins are more likely to be able to pass freely through the cell membrane.
Correct Answer:

Verified
Correct Answer:
Verified
Q38: Active carrier proteins can transfer molecules into
Q39: When placed in a 2 percent sucrose
Q40: Active carrier proteins are not found in
Q41: The passive movement of water across a
Q42: Protein-lined tunnels that span the small intercellular
Q44: To coordinate the contraction of the numerous
Q45: Gap junctions allow large molecules to move
Q46: The concentration of solutes is higher within
Q47: Cell signaling<br>A) is always a rapid process.<br>B)
Q48: A white blood cell at the site