Amino Acids

Identify the statement which is incorrect.

1.	Sulphur is an integral part of cysteine.
2.	Glycine is an example of lipids.
3.	Lecithin contains a phosphorus atom in its structure.
4.	Tyrosine possesses an aromatic ring in its structure.

Given below are two statements:

Statement I:	A protein is imagined as a line, the left end represented by first amino acid (C-terminal) and the right end represented by last amino acid (N-terminal).
Statement II:	Adult human haemoglobin, consists of 4 subunits (two subunits of type and two subunits of ẞ type.)

In the light of the above statements, choose the correct answer from the options given below:

1.	Statement I is false but Statement II is true.
2.	Both Statement I and Statement II are true.
3.	Both Statement I and Statement II are false.
4.	Statement I is true but Statement II is false.