Which of the following statements below describes what is shown in the diagram?
A. the formation of starch from glucose monomers in a plant root
B. the digestion of proteins in the stomach into their constituent amino acids
C. the assembly of glycerol and fatty acids to produce a phospholipid
D. the enzymatic digestion of cellulose by the enzyme celloblase
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Enzyme B has an optimal pH of 8. What would happen if Enzyme B were exposed to the optimal conditions of Enzyme A?
A. Enzyme B would function as normal.
B. The lowered pH would cause a disruption of Enzyme B's tertiary structure, thus causing the enzyme to be less effective or even ineffective.
C. Enzyme B would ionize in the solution and its performance would increase.
D. The active site of Enzyme B would unfold so that the appropriate substrate would fit into it better.
Which functional group is used in stabilizing three-dimensional structures of proteins by forming covalent bonds?
A. sulfhydryl
B. amino
C. carboxylic acid
D. carbonyl
A student is completing a lab investigation in which various cell types are viewed unter the microscope and then classified as prokaryotic or eukaryotic. The student's data chart is shown below.Which specimens should the student identify as being prokaryotic cells?
A. specimen 1 and 2
B. specimen 2 and 3
C. specimen 1 and 3
D. specimen 3 and 5
In terms of tonicity, the solution in the beaker with respect to the solution in the bag is
A. saturated.
B. isotonic.
C. hypotonic.
D. hypertonic.
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