Movement of molecules down a concentration gradient is an example of

A. active transport.
B. kinetic energy.
C. potential energy.
D. oxidation.
E. reduction.


B. kinetic energy.

Biology & Microbiology

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What is the pancreas' role in the digestive process?

What will be an ideal response?

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According to Wilhelm Stern’s method of measurement, a ten-year-old child who is able to perform the mental tasks of

a ten-year-old (but not of an eleven-year old) has an IQ of ____. a. 80 b. 90 c. 100 d. 110 e. 120

Biology & Microbiology

How is translation initiated?

A) DNA helicase binds to the origins of replication. B) Two ribosomal subunits bind to the mRNA transcript. C) RNA polymerase binds to the promoter sequence. D) Two ribosomal subunits bind to the DNA sequence.

Biology & Microbiology

Certain body sites contain sequestered molecules, called ________ that escaped assessment during development of immune tolerance and are mistaken as foreign.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology