In what ways do the membranes of a eukaryotic cell vary?
AP Bio Chp 5: Membrane Transport and Cell Signaling

Quiz
•
Biology
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9th Grade - University
•
Medium
Mr. Queen
Used 4+ times
FREE Resource
6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phospholipids are found only in certain membranes
Certain proteins are unique to each type of membrane
Only certain membranes of the cell are selectively permeable
Only certain membranes are constructed from amphipathic molecules
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following factors would tend to increase membrane fluidity?
A greater proportion of unsaturated phospholipids
A greater proportion of saturated phospholipids
A lower temperature
A relatively high protein content in the membrane
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phosphorylation cascades involving a series of protein kinases are useful for cellular transduction because
They are species specific
They always lead to the same cellular response
They amplify the original signal many fold
They counter the harmful effect of phosphatases
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Lipid-soluble signaling molecules, such as aldosterone, cross the membranes of all cells but affect only target cells because:
Only target cells retain the appropriate DNA segments
Intracellular receptors are present only in target cells
Only target cells have enzymes that break down aldosterone
Only in target cells is aldosterone able to initiate the phosphorylation cascade that turns genes on
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following processes includes all the others?
Osmosis
Diffusion of a solute across a membrane
Passive transport
Transport of an ion down its electrochemical gradient
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Under what conditions will a substance be likely to enter a cell through diffusion?
When a molecule of the substance is very large
When the substance is a particle of food
When the concentration of the substance is greater outside the cell than inside
When the concentration of the substance is greater inside the cell than outside
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