Membrane proteins, like membrane lipids, can move laterally by exchanging positions with other membrane components. Which type of membrane proteins is expected to be the least mobile, based on their function?
(a) channels
(b) anchors
(c) receptors
(d) enzymes
(b)
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The genome of most prokaryotes consists of ____
a. a single linear DNA molecule b. a single circular DNA molecule c. many linear DNA molecules d. many circular DNA molecules e. a single DNA molecule that may be circular or linear, depending on the species
Which biome occurs in the interiors of continents where winters are cold and snowy and summers are warm and fairly
dry?
a. tropical montane forests b. temperate grasslands c. chaparral d. dry savannas e. temperate forests
An allosteric inhibitor
A) increases the rate of substrate binding. B) binds and activates the high-affinity state of the enzymes. C) is identical to the active site. D) binds at the regulatory site. E) is converted to an activator by the enzyme.
Unlike traditional vaccines, cancer vaccines are administered to an individual after he or she has developed the illness
Indicate whether the statement is true or false