Recent questions tagged ch-14

In n-type silicon , which of the following statement is true?

asked Dec 30, 2016 by meena.p

1 answer

Write about the following on protein synthesis . (i) Name the location where protein synthesis occurs . (ii) How do 64 codons code code for only 20 amino acids? (iii) Which of the two bases of the condon are more important for coding ?

asked Nov 28, 2016 by meena.p

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Glucose or sucrose are soluble in water but cyclohexane or benzene are insoluble in water. Explain.

asked Nov 22, 2016 by meena.p

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Give one example for each of the following :(a) An artificial sweetener whose use is limited to cold drinks.(b) A non-ionic detergent.(c) A pain reliever used for relief from severe pains like post-operative pain or pain due to terminal cancer.

asked Nov 16, 2016 by meena.p

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What are the ultimate products of digestion of Proteins ?

asked Nov 14, 2016 by meena.p

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Write about the following on protein synthesis. (a) Name the location where protein synthesis occurs . (b) How do 64 codons code for only 20 amino acids (c) Which of the two bases of the codon are more important for coding ?

asked Nov 14, 2016 by meena.p

1 answer

State the reason in each of the following cases: (i) Soaps do not work well in hard water (ii) Synthetic detergents are better than soaps .

asked Nov 10, 2016 by meena.p

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Answer the following questions : (i) Why do soaps not work in hard water. (ii) What are the main constituents of dettol (iii) How do antiseptic differ from disinfectants

asked Nov 8, 2016 by meena.p

1 answer

Where are receptors located ?

asked Nov 4, 2016 by meena.p

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How do antiseptics differ from disinfectant? Give one example of each case

asked Nov 4, 2016 by meena.p

1 answer

What is the scientific explaination for the feeling of depression ?

asked Nov 2, 2016 by meena.p

1 answer

How does vulcanization change the properties of natural rubber ?

asked Oct 25, 2016 by meena.p

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a)How would you explain the amphoteric behavior of amino acids b) How does vulcanization change the properties of natural rubber ? (b)Explain what is meant by : (i) a peptide linkage (ii) a glycosidic linkage ?

asked Oct 21, 2016 by meena.p

1 answer

Name one substance which can act as both (i) Analgesic and Antipyretic (ii) Antiseptic and disinfectant

asked Oct 20, 2016 by meena.p

1 answer

Justify the following (a)(i) Sleeping pills are recommended to patient suffering from sleepless but it is not adorable to take them without consulting the doctor . (ii) Why do we require artificial sweetening agents (b) Write the composition of Dettol

asked Oct 20, 2016 by meena.p

1 answer

Wax is

asked Dec 17, 2015 by meena.p

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$\alpha$- Tocophenol is found in

asked Dec 17, 2015 by meena.p

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Subunits present in haemoglobin are

asked Dec 17, 2015 by meena.p

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Enzymes with two sites are called

asked Dec 17, 2015 by meena.p

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The common molecular formula for dis accharide

asked Dec 17, 2015 by meena.p

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The functional group , which is found in amino acid is

asked Dec 17, 2015 by meena.p

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RNA contains

asked Dec 17, 2015 by meena.p

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Complete hydrolysis of allucose gives

asked Dec 17, 2015 by meena.p

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Which base is present in RNA but not in DNA ?

asked Dec 17, 2015 by meena.p

1 answer

The pyrimidine bases present in DNA are

asked Dec 17, 2015 by meena.p

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$\alpha -D(+)-glucose $ and $\beta-D-(+)-glucose$ are

asked Dec 17, 2015 by meena.p

1 answer

Biuret test is not given by :

asked Dec 17, 2015 by meena.p

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Deficiency of vitamin $B_1$ causes +ve diseases?

asked Dec 17, 2015 by meena.p

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Which of the following is not a fat soluble vitamin?

asked Dec 17, 2015 by meena.p

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Which of the following vitamins is water soluble ?

asked Dec 17, 2015 by meena.p

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Which one of the following is a peptide harmone ?

asked Dec 17, 2015 by meena.p

1 answer

The human body does not produce

asked Dec 17, 2015 by meena.p

1 answer

The cell membranes are mainly composed of

asked Dec 17, 2015 by meena.p

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Which of the functional group participates in disulphide bond formation in proteins ?

asked Dec 17, 2015 by meena.p

1 answer

The helical structure of protein is stabilized by

asked Dec 17, 2015 by meena.p

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Num of chiral carbons in $\beta- D-(+)$ glucose is

asked Dec 17, 2015 by meena.p

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The hormone that helps in the conversion of glucose to glycogen is

asked Dec 17, 2015 by meena.p

1 answer

The hormone that helps in the conversion of glucose to glucogen is

asked Dec 16, 2015 by meena.p

1 answer

A sequence of how many nucleotides in messenger RNA makes a codon for an amino acid ?

asked Dec 16, 2015 by meena.p

1 answer

Glycolysis is

asked Dec 16, 2015 by meena.p

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Which of the following is current about H-bonding in nucleotides ?

asked Dec 16, 2015 by meena.p

1 answer

Enzymes are made up of

asked Dec 16, 2015 by meena.p

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Vitamine $B_{12}$ contains

asked Dec 16, 2015 by meena.p

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Mg is present in

asked Dec 16, 2015 by meena.p

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Which one is responsible for production of energy in bio- reaction ?

asked Dec 16, 2015 by meena.p

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$\alpha - d - glucose$ and $\beta-D$ glucose are

asked Dec 16, 2015 by meena.p

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Which of the following is the sweetest sugar ?

asked Dec 16, 2015 by meena.p

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Glucose molecule reacts with X no . of molecules pf phenyl hydroxine to yield oxazone. The value of X is

asked Dec 16, 2015 by meena.p

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The number of molecules of ATP produced in the lipid methabolism of a molecule of palmitic acid is :

asked Dec 16, 2015 by meena.p

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The function of enzymes in the living system is to :

asked Dec 15, 2015 by meena.p

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