Final answer:
The non-polar aliphatic amino acids are Alanine (A), Valine (B), Leucine (C), Isoleucine (D), Glycine (E), Methionine (F), and Proline (G). Options (2) B, C, D and (3) A, B, F collectively identify all seven of these amino acids correctly.
Step-by-step explanation:
The non-polar aliphatic amino acids are characterized by having side chains that are non-polar and lack affinity for water, which makes them hydrophobic. Based on the information provided, we can categorize aliphatic amino acids that are non-polar.
- Alanine (A) is known to be hydrophobic and has a methyl group as its side chain, which is non-polar.
- Valine (B) has an isopropyl group as its side chain, another non-polar moiety.
- Leucine (C) and Isoleucine (D) both have longer, non-polar hydrocarbon chains as side groups.
- Glycine (E), although the simplest amino acid with a hydrogen atom as its side chain, is considered non-polar due to the lack of polar groups.
- Methionine (F) contains a non-polar sulfide-containing side chain.
- Proline (G) is distinguished by its unique cyclic structure, where the side chain is connected to the amino group, forming a non-polar ring.
From the given options, the correct set of non-polar aliphatic amino acids comprises Alanine (A), Valine (B), Leucine (C), Isoleucine (D), Glycine (E), Methionine (F), and Proline (G). The options that list these amino acids correctly are (2) B, C, D, and (3) A, B, and F, which collectively include all seven of the non-polar aliphatic amino acids in question.
This question is not complete, Here I am attaching the complete question:
Non-polar aliphatic amino acids (7) are:
A) Alanine
B) Valine
C) Leucine
D) Isoleucine
E) Glycine
F) Methionine
G) Proline
Select the correct options:
(1) A, E, G
(2) B, C, D
(3) A, B, F
(4) C, D, G