Ch 15 - Amino Acid Groups ONLY

Question 1

Amino acids: List the ones with a non-polar, aliphatic R group (aliphatic = hydrocarbon chains/branches - no aromatic rings).
(Gynecologists love moist vaginas in August.)*

*gross - gyn. (Alan) should be locked up in chains!

Answer 1

Glycine Gly (G); Leucine Leu (L); Methionine Met (M); Valine Val (V); Isoleucine Ile (ɪ); Alanine Ala (A)

Question 2

Amino acids: List the ones with an aromatic R group.
(Pretty-Fucking Thoughtful-You TWat.)*

*aromatic twerpy (trp) twats? >:-[

Answer 2

Phenylalanine Phe (F); Tyrosine Tyr (Y); Tryptophan Trp (W)

Question 3

Amino acids: List the ones with a polar, uncharged R group.
Stone Temple Pilots Charged Amounts-Normally Gathered-Quarterly*

*this is sure to polarize some fans

Answer 3

Serine Ser (S); Threonine Thr (T); Proline Pro (P); Cysteine Cys (C); Asparagine Asn (N); Glutamine Gln (Q)

Question 4

Amino acids: List the ones with a negatively charged R group.
Alert-Dragons Guard-Eggs*

*fucking w/ those dragons would be a negative experience.

Answer 4

Aspartate Asp (D); Glutamate Glu (E)

Question 5

Amino Acids: List the ones with a positively charged R group.
(Leia-Kneeled And-Relieved Han.)*

*a positive experience for Han no doubt. >:-[

Answer 5

Lysine Lys (K); Arginine Arg (R); Histidine His (H)

Question 6

All amino acids have 4 parts to their basic structure: a ___ _ atom, a ___ atom, an ___ group; a ___ group; and an _ group

Answer 6

central C; hydrogen; amino; carboxyl; R

Question 7

There are __ major categories/groups of amino acids; therefore, if one is switched within the __ group, the overall effect will likely be __. Exceptions include __ (because they’re rare and designate the starting point); __ (due to disulfide bonds that are critical to proteins and their structure); and __ (they often cause bends in polypeptides).

Answer 7

5; same; minimal

Met (methionine); Cys (cysteine); Pro (proline)

Question 8

__ (an AA) is fairly rare, often plays a role in __ activity, is one of 2 AA’s with a _ atom; has only one codon which is the ‘start’ codon (___).

Answer 8

Met (M); enzymatic; sulphur; AUG

Question 9

__ is one of two AAs that have a __ atom, and are important because they form __ bonds.

Answer 9

Cys (C); sulphur; disulfide

Question 10

__ is an amino acid that often leads to bends in a __. In addition, it has no free __ group.

Answer 10

Pro; polypeptide

amino

Question 11

These two AAs are prominent in histones.

Answer 11

Lys (K); Arg (R)