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Structure of Proteins Video Lecture | Chemistry for JEE Main & Advanced
FAQs on Structure of Proteins Video Lecture - Chemistry for JEE Main & Advanced
| 1. What is the primary structure of proteins? |  |
Ans. The primary structure of a protein refers to the sequence of amino acids that make up the protein chain. It is the most basic level of protein structure and determines the specific order of amino acids in the protein.
| 2. What are the secondary structures of proteins? | |
Ans. Secondary structures of proteins are regular repeating patterns that occur within the protein chain. The two most common secondary structures are alpha helix and beta sheet. Alpha helix is a coiled structure, while beta sheet consists of strands connected by hydrogen bonds.
| 3. How are proteins folded into their tertiary structure? | |
Ans. The tertiary structure of a protein results from the folding of the secondary structures into a three-dimensional shape. This folding is driven by various forces, such as hydrophobic interactions, hydrogen bonding, and disulfide bridges. The specific folding pattern is crucial for the protein's proper functioning.
| 4. What is the quaternary structure of proteins? | |
Ans. Quaternary structure refers to the arrangement of multiple protein subunits to form a functional protein complex. It is relevant for proteins that consist of more than one polypeptide chain. The subunits are held together by various interactions, such as hydrogen bonds, ionic bonds, and hydrophobic interactions.
| 5. How do proteins denature? | |
Ans. Protein denaturation refers to the disruption of a protein's structure, leading to loss of its biological activity. Denaturation can occur due to factors such as heat, pH extremes, exposure to chemicals, or mechanical stress. When proteins denature, they lose their native shape, which can impair their functionality.
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