Practice question
Question
Given below are two statements : Statement I : The α–helix structure is stabilized by hydrogen bonds formed between the main chain atoms of residues i and i + 4 . Statement II : β–strands are stabilized by hydrogen bonds between residues of adjacent strands. In the light of the above statements, choose the correct answer from the options given below :
Explanation
Alpha helix stability arises from intrachain hydrogen bonds between carbonyl oxygen of residue i and amide hydrogen of residue i+4. Beta sheet stability relies on interstrand hydrogen bonds linking carbonyl and amide groups of neighboring strands, forming extended pleated structures.
Related blogs
Guides and insights connected to this topic
Experiment 16: Flash Cards / Models / Specimens Showing Examples of Homologous and Analogous Organs
Study homologous and analogous organs using flash cards, models and specimens of animal forelimbs and plant parts. Includes requirements, pr...
Experiment 15: Identification and Study of Symbiotic Associations (Root Nodules of Leguminous Plants, Lichens) and Parasitism (Cuscuta on Host)
Observe mutualism in legume root nodules, lichen symbiosis, and parasitism by Cuscuta on host plants using models and specimens.
Experiment 14: Identification of Disease-Causing Organisms (Ascaris, Entamoeba, Plasmodium, and Ringworms)
Identify common human pathogens—Ascaris, Entamoeba, Plasmodium, and ringworm—using permanent slides and specimens under a microscope.
Discussion
Comments
Please log in to join the discussion.
Login to commentNo comments yet. Be the first to start the discussion.