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Topic: Biomolecules: proteins, carbohydrates, lipids, nucleic acids· Cell Structure and Function

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 s…

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 \(\alpha\) type and two subunits of \(\beta\) 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.

1 answer

Best answer

Answer: 1. Statement I is false but Statement II is true.

Key idea: Check the orientation of a protein and the structure of haemoglobin.

  • Statement I is false: a protein is written with the left end as the first amino acid, which is the N-terminal, and the right end as the last amino acid, the C-terminal. The statement swaps them.
  • Statement II is true: adult haemoglobin has 4 subunits, two \(\alpha\) and two \(\beta\).

Option 1.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report
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