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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Give scientific reasons: On boiling egg albumin becomes opaque white.

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प्रश्न

Give scientific reasons:

On boiling egg albumin becomes opaque white.

टीपा लिहा
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उत्तर

  1. Proteins when subjected to high temperature undergo disruption of noncovalent interactions which are responsible for the specific shape of protein. That is, it undergoes denaturation.
  2. Denaturation disturbs the specific structure of egg albumin which causes a change in the physical properties.
    Thus, on boiling egg albumin becomes opaque white.
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पाठ 14: Biomolecules - Exercises [पृष्ठ ३२०]

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बालभारती Chemistry [English] Standard 12 Maharashtra State Board
पाठ 14 Biomolecules
Exercises | Q 2. v. | पृष्ठ ३२०

व्हिडिओ ट्यूटोरियलVIEW ALL [2]

संबंधित प्रश्‍न

Select the most correct choice.

A disulphide link gives rise to the following structure of a protein.


Write the names and schematic representations of all the possible dipeptides formed from alanine, glycine and tyrosine.


Draw a neat diagram for the following:

Secondary structure of protein


The optically inactive α-amino acid among the following is _____________


Write the number of chiral carbon atoms present in fructose.


Complete the following reaction.

\[\ce{H2N - CH2 - COOH + H2N - CH2 - CH2 - COOH ->[-H2O] ?}\]


Define peptide bond.


Explain denaturation of proteins.


Draw the structure of Haworth formula of sucrose.


Explain the primary structure of proteins.


From the following identify the INCORRECT match with respect to the different structures of proteins.


____________ is NOT a simple protein.


Nucleotide differs from a nucleoside as it has ______


Pyrimidines are ______.


Histones are involved in packaging of DNA into structural units called ______.


Purine and pyrimidine bases are placed regularly along the DNA molecules at a distance of ______


Read the following statements and select the correct option.

  1. In quaternary structure, the peptide chains are much looped, twisted, and folded back on themselves due to formation of hydrogen bonds.
  2. When a protein has more than two polypeptide subunits their arrangement in space is called secondary structure.

Identify the option that correctly describes the amphoteric nature of proteins.


Identify (i) and (ii) and select the correct option.

i. Protein portion of the enzyme is called the ____________.

ii. Non-protein constituent binding to the enzyme is called as the ____________.


Which of the following contains keratin?


The conjugate acid of \[\ce{CO^2-_3}\] is ____________.


Proteins are ______ of amino acids.


Proteins are polypeptides with linear chains of i ______ linked by ii ______ bonds.


Identify the enzyme X in the following reaction.

\[\ce{H2O2(aq) ->[x] H2O(l) + \frac{1}{2} O2(g)}\]


Identify the enzyme that catalyses the reaction of CO2 with water in huma body.


The bacteriostatic antibiotic from the following is ______.


Which of the following amino acids has \[\ce{Me - S - CH2 - CH2 -}\] group in the side chain?


Which of the following is not a broad spectrum antibiotics?


The amino acid having −CH3 as side chain is ____________.


Which of the following is the simplest amino acid?


The basic amino acid is ____________.


The most abundant cellular protein is ______.


Proteins attached with a prosthetic group are called ______ proteins.


A protein is a sequence of amino acids. The end of the polypeptide chain of -NH2 end and at -COOH end are respectively called ______.


An iron-containing red protein is ______ 


Identify basic amino acid from following.


Which of the following molecules from a zwitter ion?


Which of the following amino acids has –CH2OH group in its side chain?


Which among the following amino acids has the lowest molecular mass?


Which among the following is a globular protein?


Identify the side chain –R present in amino acid lysine.


Which among the following is basic amino acid?


In a protein, various amino acids linked together by ____________.


Among the following L-serine is:


Write the Zwitter ion structure of alanine.


Write a short note on peptide bond.


Write a note on denaturation of proteins.


Write the structure of all possible dipeptides which can be obtained from glycine and alanine.


Denaturation of proteins leads to loss of their biological activity by:


Which of the following amino acid is basic in nature?


The amino acid, which is basic in nature is ______.


Amino acids in a protein molecule, are linked by a peptide bond. Which of the following correctly shows the reaction of forming peptide bonds?


Peptide and hydrogen bonds are present in the primary structure of the protein which is due to ______.


Write a short note on peptide bond.


Write a short note on peptide bond.


Write the Zwitter ion structure of alanine.


Define the term Protein.


Write the Zwitter ion structure of alanine.


Write a short note on a peptide bond.


Write a short note on peptide bond.


Write a short note on peptide bond.


Write a short note on peptide bond.


Write a short note on peptide bond.


Write the Zwitter ion structure of alanine.


Given below are two statements.
Statement I- Most of the blood proteins are acidic proteins.
Statement II - Derived proteins are not found in nature.
In the light of above statements, Select the correct option given below.


Which from following is an essential amino acid?


Which from following amino acids contains heterocyclic ring at a side chain (R) group?


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