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Biomolecules Model Question Paper

11th Standard

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Biology

Time : 01:00:00 Hrs
Total Marks : 50
    5 x 1 = 5
  1. Sanger first sequenced the protein called ____________.

    (a)

    Inulin

    (b)

    Glycine

    (c)

    Insulin

    (d)

    Peptidase

  2. The activity of salivary amylase is increased in the presence _________ of ions.

    (a)

    Na

    (b)

    Cl

    (c)

    H2O

    (d)

    NH3

  3. The middle lamella is made up of ___________.

    (a)

    Muramic acid

    (b)

    Calcium pectate

    (c)

    Phosphoglycerol

    (d)

    Hemicellulose

  4. Find out the mismatched pairs:

    (a)

    Protein - Important components of nucleus

    (b)

    Nucleic acid -Major components of chromosomes

    (c)

    Amino acid - An amphoteric compound

    (d)

    Enzymes - Colloidal catalysts

  5. Which are the structural units of DNA?

    (a)

    Nitrogen base

    (b)

    Pentose sugar

    (c)

    Nucleotide

    (d)

    Phosphoric acid

  6. 5 x 2 = 10
  7. How is peptide bond formed?

  8. What are the three types of RNA?

  9. Give a short note on tRNA.

  10. What are the component percentage of the total cellular mass?

  11. How waxes are formed?

  12. 5 x 3 = 15
  13. Differentiate between competitive and Allostreic

  14. Mention the properties of water

  15. Write a short note on Lock and Key Mechanism of Enzyme

  16. Why the sugar in DNA is a deoxyribose?

  17. How will you identify the presence of protein in food samples?

  18. 4 x 5 = 20
  19. Write the characteristic features of DNA.

  20. Enumerate the main differences between DNA and RNA

  21. How will you identify the presence of glucose in a given food sample.

  22. Compare DNA with RNA.

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