Which of the following is a characteristic feature of a carrier protein in a plasma membrane?
A) It exhibits a specificity for a particular type of molecule.
B) It requires the expenditure of cellular energy to function.
C) It works against diffusion.
D) It has no hydrophobic regions.
A
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The three main classes of hormones are:
A. amine hormones, peptide hormones, and steroid hormones. B. lipid soluble hormones, water soluble hormones, and water insoluble hormones. C. polysaccharide hormones, protein hormones, and lipid hormones. D. nucleic acid hormones, lipid hormones, and amine hormones. E. steroid hormones, lipid hormones, and peptide hormones.
In Hershey and Chase’s experiment, why would it not have been suitable to use radioactive nitrogen to label DNA?
What will be an ideal response?
Frederick Law Olmsted, known as the father of American landscape architecture, is known for designing _________ and then becoming the original commissioner of _____________ National Park.
A. New York's Central Park, Yosemite B. Niagara Falls, Yellowstone C. Greek-style public gardens, Yellowstone D. Yellowstone National Park, Yosemite E. Chicago's City Parks, Yellowstone
How does determination relate temporally to differentiation?
What will be an ideal response?