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Biomolecules Test - 8

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Biomolecules Test - 8
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Weekly Quiz Competition
  • Question 1
    1 / -0

    Which is the neutral amino acid?

    Solution

    Side chains which have pure hydrocarbon alkyl groups (alkane branches) or aromatic (benzene rings) are non-polar. Examples include valine, alanine, leucine, isoleucine, phenylalanine.

  • Question 2
    1 / -0

    No cell could live without

    Solution

    Enzymes are bio-catalyst. All the metabolic biochemical reactions are carried out with the help of enzyme. No cell could survive without enzyme.

  • Question 3
    1 / -0

    What should be TDS of Ca++ and Mg++ in soft water?

    Solution

    TDS stands for total dissolved solids which are inorganic salts dissolved in water. The TDS of soft water should be up to 120 ppm.

  • Question 4
    1 / -0
    Fatty acid molecules containing one or more double bonds (— HC = CH—) are called
  • Question 5
    1 / -0

    Chitin occurs in cell wall of

    Solution

    The cell wall of fungi is made of chitin,complex sugar molecules. The cell wall of plants are made up of cellulose.

  • Question 6
    1 / -0

    Most abundant mineral in body fluids are

    Solution

    Most abundant mineral in body fluids are Na+ Na+ and Cl− Cl− ions. These ions are responsible for generation of impulses and its transfer through neuron cells.

  • Question 7
    1 / -0
    What happens to enzymes at low temperature?
  • Question 8
    1 / -0

    Lipids that are found in the cell membrane are

    Solution

    Some lipids have phosphorous and a phosphorylated organic compound in them. These are phospholipids. They are found in cell membrane.

  • Question 9
    1 / -0
    Gluconeogenesis is
  • Question 10
    1 / -0
    Which of the following is not an essential fatty acid?
  • Question 11
    1 / -0

    The diagram represent

    Solution

    The diagram shown is a uracil which is a pyramidine belonging to nitrogen bases.

  • Question 12
    1 / -0
    -oxidation is the process by which the oxidation of __________ takes place.
  • Question 13
    1 / -0

    The oils have

    Solution

    Oils have lower melting point (e.g., gingely oil) and hence remain as oil in winters.

  • Question 14
    1 / -0
    By which of the following processes an amino group from amino acid is transferred to produce a keto acid?
  • Question 15
    1 / -0
    Which of the following is not a ketone body?
  • Question 16
    1 / -0
    Raffinose is a trisaccharide found in cotton seeds and lima beans. The component sugars of raffinose are
  • Question 17
    1 / -0
    Which of the following are amphipathic glycosides?
  • Question 18
    1 / -0
    The enzymes which differ slightly in structure, but can catalyze the same type of reaction, are known as
  • Question 19
    1 / -0
    In maltose, two glucose units are linked by a
  • Question 20
    1 / -0

    Which of the following are aromatic amino acids?

    Solution

    Based on number of amino and carboxyl groups, there are acidic (e.g., glutamic acid), basic (lysine) and neutral (valine) amino acids. Similarly, there are aromatic amino acids (tyrosine, phenylalanine, tryptophan).

  • Question 21
    1 / -0

    Which of the following is not obtained on hydrolysis of nucleic acid?

    Solution

    Hydrolysis of nucleic acid (DNA and RNA) produces pentose sugar ( ribose or deoxyribose) purine and pyrimidine. Phosphoric acid is not released on hydrolysis of DNA or RNA.

  • Question 22
    1 / -0

    Element located in centre of pophyrin ring of chlorophyll is

    Solution

    Chlorophyll molecule consists of a porphyrin ring and a long tail like chain of carbon and hydrogen. The centre of pophyrin ring is occupied by Mg ions.

  • Question 23
    1 / -0
    The simplest amino acid is
  • Question 24
    1 / -0

    The most abundant organic molecule present on earth is

    Solution

    Cellulose is the most abundant organic molecule present on earth. Cellulose forms the cell wall of all plant cells. Cell wall is the outermost protective layer of cell.

  • Question 25
    1 / -0
    Which of the following sterols is a precursor to vitamin D2?
  • Question 26
    1 / -0
    Which of the following types of enzymes catalyses the reaction inolving the binding of two compounds with breaking up of pyrophosphates?
  • Question 27
    1 / -0

    98% of living body is formed of six elements- C, H,N,O and

    Solution

    Everything in universe is made up of elements. The body of living organisms contain mainly six elements. These are carbon, hydrogen, oxygen phosphorous and Sulphur. In facts, 98% of living body is formed on these six elements.

  • Question 28
    1 / -0
    Which of the following pairs is not correctly matched?
  • Question 29
    1 / -0

    Arachidonic acid has

    Solution

    Arachidonic acid has 20 carbon atoms including the carboxyl carbon. Molecular formula- C20H32O2.

  • Question 30
    1 / -0

    Identify the incorrect pair in the following

    Solution

    Haemoglobin present in blood transport gases, RNA ( tRNA and mRNA) are involved in proteinsynthesis and steroids are used as sex stimulating chemicals but glucose is not a storage product.

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