Biology Ch.7 Exam-Ready Question Set (2025)

Biology Ch.7 Exam-Ready
Question Set (2025)




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and Certified Answers, with
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, Biology ch.7 testbank
Question 1
1) For a protein to be an integral membrane protein, it would have to be _____.
Correct Answer amphipathic


Question 2
2) You have a planar bilayer with equal amounts of saturated and unsaturated
phospholipids. After testing the permeability of this membrane to glucose, you
increase the proportion of unsaturated phospholipids in the bilayer. What will
happen to the membrane's permeability to glucose?
Correct Answer
A) Permeability to glucose will increase.


Question 3
According to the fluid mosaic model of cell membranes, phospholipids _____.
Correct Answer
A) can move laterally along the plane of the membrane


Question 4
The membranes of winter wheat are able to remain fluid when it is extremely cold by _____.
Correct Answer
A) increasing the percentage of unsaturated phospholipids in the membrane


Question 5
Some regions of the plasma membrane, called lipid rafts, have a higher concentration of
cholesterol molecules. At higher temperatures, these regions _____.
Correct Answer
B) are less fluid than the surrounding membrane


Question 6
Singer and Nicolson's fluid mosaic model of the membrane proposed that
membranes_____.
Correct Answer
C) consist of protein molecules embedded in a fluid bilayer of phospholipids


Question 7
An animal cell lacking oligosaccharides on the external surface of its plasma membrane
would likely be impaired in which function?
Correct Answer
B) cell-cell recognition