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The four elements called "big-four" whic...

The four elements called "big-four" which make up 95% of all elements found in a living system are

A

C,H,O,N

B

C,H,O,P

C

C,H,O,S

D

C,N,O,P.

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The correct Answer is:
A
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NCERT FINGERTIPS-BIOMOLECULES-Biomolecules
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  2. Read the given statements and select the option that correctly sorts t...

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  3. Take a living tissue, grind it in trichloroacetic acid using pestle an...

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  4. The inorganic compounds like sulphate, phosphate, etc., are found in

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  5. The sum total composition of acid-soluble and acid-insoluble fraction ...

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  6. Biomolecules are

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  7. Biological molecules are primarily joined by

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  8. How many carbon atoms are generally used in composition of monosacchar...

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  9. Which of the following options correctly identifies the structural for...

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  10. Match column I with column II and select the correct option from the g...

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  11. Identify the amino acids given below and select the correct option.

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  12. The 20 different amino acids have different

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  13. Which of the following is the correct match ?

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  14. Acidic amino acids have two-COOH groups and one -NH(2) group per molec...

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  15. An example of aromatic amino acid is

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  16. Essential amino acids include

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  17. Which of the following statements about amino acids is incorrect ?

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  18. Saturated fatty acids possess bonds between carbon atoms and are at r...

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  19. Which of the following is a saturated fatty acid?

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  20. Triglycerides are fatty acid esters of glycerol, which are formed by t...

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