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Test: Biomolecules Level - 3 - Chemistry MCQ


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30 Questions MCQ Test Organic Chemistry - Test: Biomolecules Level - 3

Test: Biomolecules Level - 3 for Chemistry 2024 is part of Organic Chemistry preparation. The Test: Biomolecules Level - 3 questions and answers have been prepared according to the Chemistry exam syllabus.The Test: Biomolecules Level - 3 MCQs are made for Chemistry 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Biomolecules Level - 3 below.
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Test: Biomolecules Level - 3 - Question 1

The number of amino acids and number of peptides bonds in a linear tetrapeptide (made of different amino acids) are respectively:

Test: Biomolecules Level - 3 - Question 2

The aqueous solut ion of a carbohydrate gave dark blue colour with iodine solution. The carbohydrate is:

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Test: Biomolecules Level - 3 - Question 3

In the reactions, 

The major product X and Y respectively, are:

Test: Biomolecules Level - 3 - Question 4

Ident ify the correct set of stereochemical relat ionships amongst the following monosaccharides I-IV:


Test: Biomolecules Level - 3 - Question 5

In a double stranded DNA, if the sequence 5’AGATCC3’ appears on one strand of DNA, what sequence appears on the complementary strand?

Test: Biomolecules Level - 3 - Question 6

Which one of the following compounds will form an osazone derivative:

Detailed Solution for Test: Biomolecules Level - 3 - Question 6

When sugars are reacted with excess of phenylhydrazine osazone formation takes place.Osazone will form in that sugar only where keto hydroxy group is present.

Thus CH3CH2COCH2OH will form an osazone derivative; as it has keto hydroxy group.

Test: Biomolecules Level - 3 - Question 7

An acidic amino acid among the following is:

Test: Biomolecules Level - 3 - Question 8

Ribose and 2-deoxyribose can be different iated by:

Test: Biomolecules Level - 3 - Question 9

The number of disulphide linkage present in insulin are:

Test: Biomolecules Level - 3 - Question 10

Which one of the following is an essential amino acid:

Test: Biomolecules Level - 3 - Question 11

The pKa values for the three ionizable groups X, Y and Z or Glutamic acid are 4.3, 9.7 and 2.2 respectively:

The isoelectric point for the amino acid is:  

Test: Biomolecules Level - 3 - Question 12

The reagent ‘oxine’ commonly used in analytical chemistry is:

Test: Biomolecules Level - 3 - Question 13

The structure of D-(+)-glucose is:

The structure of L-(–)-glucose is:

Test: Biomolecules Level - 3 - Question 14

Which of the following compounds will behave as a reducing sugar in an aqueous KOH solution:

Test: Biomolecules Level - 3 - Question 15

The complementary DNA sequence of the given DNA 5' - G - A - A - T - T - C - 3' is:

Test: Biomolecules Level - 3 - Question 16

α-Farnesene shown below is a 

Test: Biomolecules Level - 3 - Question 17

The correct relationship within each pair of the natural product is

Test: Biomolecules Level - 3 - Question 18

Which one among the following is a Sesquiterpene:

Test: Biomolecules Level - 3 - Question 19

The compound given below is a: 

Test: Biomolecules Level - 3 - Question 20

One sequence of amino acids respects for long distances in silk protein. Complete hydrolysis of one mole of a fragment with this sequence gives 2 mol alanine, 3 mol glycine, and 1 mol serine. Partial hydrolysis yields Ala-Gly-Ala, Gly-Ala-Gly, Gly-Ser-Gly, and Ser-Gly-Ala peptides. What is the amino acid repeat:

Test: Biomolecules Level - 3 - Question 21

Tyrosine, at pH 12, has the following structure:

Test: Biomolecules Level - 3 - Question 22

A disaccharide does not give a posit ive test for Tollen’s reagent. Upon acidic hydrolysis, it gives an equimolar mixture of two different monosaccharides, both the which can be oxidized by bromine water. This disaccharide is:

Test: Biomolecules Level - 3 - Question 23

Match the following compounds with their respective classes

Test: Biomolecules Level - 3 - Question 24

Predict the products X and Y of the following peptide ligation react ion:

Test: Biomolecules Level - 3 - Question 25

Which of the following monomers do you expect to find in a RNA molecule:

Test: Biomolecules Level - 3 - Question 26

In the following react ion, the major products X and Y are:

Test: Biomolecules Level - 3 - Question 27

Among the following, the incorrect statement(s) is/are:

Test: Biomolecules Level - 3 - Question 28

All natural amino acids, except one, react with cold nitrous acid and produce nitrogen gas. Which one of the following is that odd amino acid:

Test: Biomolecules Level - 3 - Question 29

Which one of the following statement is correct:

Test: Biomolecules Level - 3 - Question 30

 Most abundant RNA in the cell

Detailed Solution for Test: Biomolecules Level - 3 - Question 30

Ans: a

Explanation: Ribosomal ribonucleic acid (rRNA) is the most abundant type of RNA. It constitutes the material inside the ribosome and directly helps in the translation of mRNA into proteins.

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