General Knowledge - General Science - Discussion


Which of the following is a protein?

[A]. Natural rubber
[B]. Starch
[C]. Cellulose
[D]. None of these

Answer: Option A


No answer description available for this question.

Tin said: (Sep 6, 2011)  
Natural rubber is a protein as it's main constituent{monomer}IS ISOPRENE.While for synthetic rubber it is neoprene.
Hope it was helpful!

Jas said: (Aug 17, 2012)  
Long chain of monomer.

Shailesh said: (Apr 12, 2014)  
What I know its a polymer not a protein because protein is made up of amino acid.

Pink said: (Jun 23, 2014)  
Cellulose&starch are made up of amino acids.

So I think natural rubber is correct.

Soumit said: (Sep 7, 2014)  
Cellulose and starch are not made up of amino acids. Proteins are, therefore starch or cellulose can't be protein and none of the other cannot be the answer. So the answer would automatically be [A] natural rubber.

Aniket said: (Feb 3, 2015)  
Protein is a huge structure containing more than 100 peptide (amide) bonds and all the 20 essential and non essential amino acids few of which are glycine, alanine, valine, leucine, isoleucine, etc. I think N.O.T.

Neha said: (Sep 18, 2015)  
Its obviously none of above.

Abhishek said: (Feb 11, 2016)  
Structural unit of the protein is amino acids so answer is none of these.

Siri said: (May 16, 2016)  
How the answer should be a natural rubber?

Kiran said: (Jul 10, 2016)  
Yes, none of the above is the answer.

Dipti said: (Sep 5, 2016)  
I think the answer is cellulose.

Chandan said: (Jul 13, 2017)  
The Chemical makeup of Natural Rubber is a polymer of isoprene molecules, specifically cis-polyisoprene, the main constituent.

Eg: Latex is the polymer cis-1, 4-polyisoprene" with a molecular weight of 100, 000 to 1, 000, 000 daltons. Typically, a small percentage (up to 5% of dry mass) of other materials, such as proteins, fatty acids, resins, and inorganic materials (salts) are found in natural rubber.

Actually, none of the options is right, but as Rubber contains, however, small quantity of Protein, it can be chosen as an answer.

Devesh said: (Sep 29, 2017)  
The condition now commonly known as "Latex allergy" is caused by the proteins produced from the rubber tree (Hevea brasiliensis) that are still present in the products manufactured from natural rubber latex. This allergy is not only caused by the proteins, but also by the chemicals and/or residues thereof.

Venu said: (Sep 4, 2018)  
It's not a protein. Protein is a polymer of amino acids.

Ghanshyam said: (Nov 12, 2019)  
If this is protein then we eat this?

Priya said: (Jul 1, 2021)  
Protein is an important part of the protective layer of rubber particles.

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