3.An example of an amino acid is shown below. Answer the following questions ing to its structure.(1+1+1+1+2)
NH2
NH3
a. Circle the amine functional group. Is the amine neutral or ionie?
b. What is the definition of a zwitterion? Does this particular amino acid fit the definition?
c. Box the entire side chain of the amino acid. Use this to identify the name of this amino
acid.
d. Describe the character of the side chain. Is it nonpolar, polar, acidic, or busic?
e. Sketch the amino acid and what it would look like if you raised the pH up to 11. Is it
positively charged, negatively charged or neutral overall? Repeat this with the pH changed
down to 4.​

"hydrogen bonding is the attraction of h atoms in the water molecule (slight + charge) to o atoms in a neighboring water molecule (slight - charge); it is a weak interatomic force. but it is still strong enough to the water molecules "stick" together."

the correct answer would be d. hope this !

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.

if it's not useful, feel free to report for mistake in answer.