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NEET Exam  >  NEET Questions  >  Secondary structure of proteins refers toa)Ma... Start Learning for Free
Secondary structure of proteins refers to
  • a)
    Mainly denatured proteins and structure of prosthetic group
  • b)
    Three dimensional structure, especially the bond between amino acid residues that are distant from each other in the polypeptide chain
  • c)
    Linear sequence of amino acid residues in the polypeptide chain
  • d)
    Regular folding patterns of continuous portions of the polypeptide chain
Correct answer is option 'D'. Can you explain this answer?
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Secondary structure of proteins refers toa)Mainly denatured proteins a...
Secondary structure of proteins refers to regular folding patterns of continuous portion of the polypeptide chain, as a result of hydrogen bonding between the >C = O and > N - H groups.
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Secondary structure of proteins refers toa)Mainly denatured proteins a...

Regular folding patterns of continuous portions of the polypeptide chain

Proteins are composed of long chains of amino acids that fold into specific three-dimensional structures. The secondary structure of proteins refers to the regular folding patterns of continuous portions of the polypeptide chain. This folding is stabilized by hydrogen bonds between the amine and carbonyl groups of the peptide bonds.

Types of secondary structures

1. Alpha helix: In an alpha helix, the polypeptide chain is coiled like a spring, with hydrogen bonds forming between every fourth amino acid along the chain. This results in a helical structure.

2. Beta sheet: In a beta sheet, the polypeptide chain folds back and forth on itself, forming a sheet-like structure. The hydrogen bonds form between adjacent strands of the polypeptide chain.

Importance of secondary structure

The secondary structure of proteins plays a crucial role in determining the overall three-dimensional shape of the protein. It helps proteins achieve their functional conformation and stability. Changes in secondary structure can lead to protein misfolding and dysfunction, which can have serious implications for cellular processes.

In conclusion, the secondary structure of proteins refers to the regular folding patterns of continuous portions of the polypeptide chain, such as alpha helices and beta sheets. Understanding these structural elements is essential for elucidating the functions and properties of proteins.
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Read the following passage to answer the following questions:Proteins are polypeptide chains made up of amino acids. There are 20 types of amino acids joined together by peptide bond between amino and carboxylic group. There are two kinds of amino acids, Essential amino acids and Non-essential amino acids. The Primary structure of protein is the linear sequence of amino acids in a polypeptide chain. The first amino acid of sequence is called N-terminal amino acids and last amino acid of peptide chain is called C-terminal amino acids. The secondary structure proteins forms helix. There are three types of secondary structure: a helix, P pleated and collagen helix. In tertiary structure long protein chain is folded upon itself like a hollow woollen ball to give three-dimensional view of protein. In quaternary structure, each polypeptide develops its own tertiary structure and function as subunit of protein.Q. Glycine and Alanine are different with respect to one substituent on the α-carbon. What are the other common substituent groups?

Read the following passage to answer the following questions: Proteins are polypeptide chains made up of amino acids. There are 20 types of amino acids joined together by peptide bond between amino and carboxylic group. There are two kinds of amino acids, Essential amino acids and Non-essential amino acids. The Primary structure of protein is the linear sequence of amino acids in a polypeptide chain. The first amino acid of sequence is called N-terminal amino acids and last amino acid of peptide chain is called C-terminal amino acids. The secondary structure proteins forms helix. There are three types of secondary structure: a helix, P pleated and collagen helix. In tertiary structure long protein chain is folded upon itself like a hollow woollen ball to give three-dimensional view of protein. In quaternary structure, each polypeptide develops its own tertiary structure and function as subunit of protein. Direction: In the following questions the Assertions (

Read the following passage to answer the following questions:Proteins are polypeptide chains made up of amino acids. There are 20 types of amino acids joined together by peptide bond between amino and carboxylic group. There are two kinds of amino acids, Essential amino acids and Non-essential amino acids. The Primary structure of protein is the linear sequence of amino acids in a polypeptide chain. The first amino acid of sequence is called N-terminal amino acids and last amino acid of peptide chain is called C-terminal amino acids. The secondary structure proteins forms helix. There are three types of secondary structure: a helix, P pleated and collagen helix. In tertiary structure long protein chain is folded upon itself like a hollow woollen ball to give three-dimensional view of protein. In quaternary structure, each polypeptide develops its own tertiary structure and function as subunit of protein.Q. The smallest amino acid is

Read the following passage to answer the following questions:Proteins are polypeptide chains made up of amino acids. There are 20 types of amino acids joined together by peptide bond between amino and carboxylic group. There are two kinds of amino acids, Essential amino acids and Non-essential amino acids. The Primary structure of protein is the linear sequence of amino acids in a polypeptide chain. The first amino acid of sequence is called N-terminal amino acids and last amino acid of peptide chain is called C-terminal amino acids. The secondary structure proteins forms helix. There are three types of secondary structure: a helix, P pleated and collagen helix. In tertiary structure long protein chain is folded upon itself like a hollow woollen ball to give three-dimensional view of protein. In quaternary structure, each polypeptide develops its own tertiary structure and function as subunit of protein.Q. The tertiary structure of a protein contains

Read the following passage to answer the following questions:Proteins are polypeptide chains made up of amino acids. There are 20 types of amino acids joined together by peptide bond between amino and carboxylic group. There are two kinds of amino acids, Essential amino acids and Non-essential amino acids. The Primary structure of protein is the linear sequence of amino acids in a polypeptide chain. The first amino acid of sequence is called N-terminal amino acids and last amino acid of peptide chain is called C-terminal amino acids. The secondary structure proteins forms helix. There are three types of secondary structure: a helix, P pleated and collagen helix. In tertiary structure long protein chain is folded upon itself like a hollow woollen ball to give three-dimensional view of protein. In quaternary structure, each polypeptide develops its own tertiary structure and function as subunit of protein.Q. There is extensive diversity of protein molecules is due to

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Secondary structure of proteins refers toa)Mainly denatured proteins and structure of prosthetic groupb)Three dimensional structure, especially the bond between amino acid residues that are distant from each other in the polypeptide chainc)Linear sequence of amino acid residues in the polypeptide chaind)Regular folding patterns of continuous portions of the polypeptide chainCorrect answer is option 'D'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Secondary structure of proteins refers toa)Mainly denatured proteins and structure of prosthetic groupb)Three dimensional structure, especially the bond between amino acid residues that are distant from each other in the polypeptide chainc)Linear sequence of amino acid residues in the polypeptide chaind)Regular folding patterns of continuous portions of the polypeptide chainCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Secondary structure of proteins refers toa)Mainly denatured proteins and structure of prosthetic groupb)Three dimensional structure, especially the bond between amino acid residues that are distant from each other in the polypeptide chainc)Linear sequence of amino acid residues in the polypeptide chaind)Regular folding patterns of continuous portions of the polypeptide chainCorrect answer is option 'D'. Can you explain this answer?.
Solutions for Secondary structure of proteins refers toa)Mainly denatured proteins and structure of prosthetic groupb)Three dimensional structure, especially the bond between amino acid residues that are distant from each other in the polypeptide chainc)Linear sequence of amino acid residues in the polypeptide chaind)Regular folding patterns of continuous portions of the polypeptide chainCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free.
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