Chemistry · Biomolecules
JEE Main 2026 — 5 April, Evening Shift — Question 63
Identify the incorrect statement about tertiary structure of proteins.
- Option A:
They can be fibrous or globular in structure.
- Option B:
The main forces that stabilize the structure are hydrogen bonding, disulphide links, van der Waals and electrostatic forces of attraction.
- Option C:Correct
The structure remains intact when exposed to pH changes.
- Option D:
A linear polypeptide chain will convert to a secondary structure and then further folding of the secondary structure will convert to tertiary structure.
Answer: C
Step-by-step solution
On changing pH tertiary strutcure of protein disrupted and amino acids intact only by peptide linkage.
Answer key and solution verified before publishing.
Practise Biomolecules
Start with this question, then two more from the same chapter — with a tutor that explains every step. Free.
- Exam
- JEE Main 2026
- Subject
- Chemistry
- Chapter
- Biomolecules
- Topic
- proteins