Side chains are important to proteins because they
A. help determine protein shape.
B. help determine the degree of solubility of the protein in water.
C. are a source of energy for hydration reactions in the cell.
D.
form the peptide bonds that link amino acids to one another.
E. help determine protein shape AND help determine the degree of solubility of the protein in water.
E
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Which of one the following amino acids is not phosphorylated in the C-terminal domain of DNA polymerase II?
A. Phe B. Ser C. Tyr D. Thr E. All of the amino acids given are phosphorylated.
Once they are identified, ____ take priority in worldwide conservation efforts.
A. healthy ecosystems B. riparian zones C. hot spots D. grasslands E. forests
Component of the cytoskeleton; plays a role in the movement of the cell and its organelles; a protein filament in a sarcomere of a muscle, its movement shortens the sarcomere, yielding muscle contraction.
What will be an ideal response?
Fick's law of diffusion states that the rate of diffusion of a gas across a membrane depends on all of the following except
A. the size of the gas molecule. B. the membrane surface area. C. which membrane transport proteins are present. D. the width of the membrane. E. the concentration difference of the gas on the two sides of the membrane.