The main form of glucose repression in the lac operon is
A. induction.
B. repression.
C. inducer exclusion.
D. the CAP/cAMP system.
C. inducer exclusion.
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Which of the following is NOT found in the extracellular matrix of animal cells?
A. cellulose fibers B. elastin fibers C. collagen fibers D. laminin fibers E. polysaccharide matrix
Trace the path of a chef's salad with croutons down the digestive tract, and explain what takes place in
each specialized region. What will be an ideal response?
In the deductive approach to scientific thought processes, we begin with ____ and make ____ based on that
information. a. premises; observations b. observations; premises c. observations; conclusions d. observations; inductions e. premises; conclusions
Which of the following describes how facilitated diffusion is powered?
a. ATP is required directly. b. Facilitated diffusion is "free of cost." c. Facilitated diffusion is powered by endocytosis. d. The sodium-potassium pump powers facilitated diffusion. e. Energy is required to do the work of establishing and maintaining a concentration gradient.