The differences between peripheral and integral membrane proteins are that:
A. Peripheral membrane proteins lack discrete hydrophobic regions
B. Peripheral membrane proteins are not located within the lipid membrane
C. Peripheral membrane proteins are easily extracted by changes in pH or ionic strength
D. Peripheral membrane proteins associate with membranes though electrostatic forces, van der Waals forces, and hydrogen bonds
E. All of the above
Ans: E. All of the above
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in the recessive condition is most common in areas that experience a high frequency of
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Foraminifera are predatory protists with a ____ shell, which is the ultimate source of _____
a. silicon; oxygen b. carbon; carbon dioxide c. chitin; ozone
d. bicarbonate; chalk and limestone e. calcium carbonate; chalk and limestone
Retroviruses have a unique enzyme that
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Lead can accumulate in which part of the body
a. blood b. muscles c. bones d. all of the above