Which molecule is least likely to be able to travel via the macula communicans pathway

The right answer is Insulin, among the following A. Insulin  B. Cl-  C. Na+  D. Lysine

Explanation:

Insulin is a peptide hormone in the body and it is very large to travel via the macula pathway.  However, Amino acids, like lysine, are small molecules that will be able to travel through this pathway.

some of the qualities most frequently associated with the baroque are grandeur, sensuous richness, drama, vitality, movement, tension, emotional exuberance, and a tendency to blur distinctions between the various arts.

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

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