MDCAT Biology Chapter 3 Biological Molecules Online Test With Answers

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MDCAT Biology Chapter 3 Biological Molecules Online Test

Sr. # Questions Answers Choice
1 In deoxyribose, oxygen is removed from carbon number 1 2 3 4
2 Which of the following bond is not present in tertiary structure of proteins Peptide Hydrogen Ionic Ester
3 Glycine can be converted to alanine by Addition of carbon and 2 hydrogens Removal of carbon and 2 hydrogens Addition of Methyl group Removal of hydrogen and 2 carbons
4 Which of the following nitrogenous base have methyl group Adenine Guanine Uracil Thymine
5 What is the theoretical number of chemically different dipeptide that can be made from 2 different amino acids 1 2 4 8
6 Monosaccharides are major component of DNA, ATP, RuBP, Lecithin DNA, NAD, Insulin DNA, NAD, ATP, RuBP DNA, RNA, Myosin
7 Which of the following is dimer of glucose Sucrose Fructose Maltose Cellulose
8 Most of the proteins are composed of _____ types of amino acids 170 150 25 20
9 When Fructose form ring structure, It is 6 Cornered 5 cornered 4 cornered 3 cornered
10 Nucleotide is to ___ as amino acid is to ___ Nucleic acids, Lipids Nucleic acids, Proteins Proteins, Lipids Lipids, proteins
11 Chemical formula of pentose sugar present in DNA C<sub>5</sub>H<sub>9</sub>O<sub>5</sub> C<sub>5</sub>H<sub>10</sub>O<sub>5</sub> C<sub>5</sub>H<sub>10</sub>O<sub>4</sub> None
12 In tertiary structure, presence of hydrophilic amino acids at the surface of proteins and hydrophobic amino acids buried inside, indicate Nature of bonding Function of protein Nature of medium Shape of protein
13 Which of the following does not contain peptide bond Hemoglobin Myoglobin Insulin Cutin
14 How many nitrogen atoms are found in lecithin 1 2 3 4
15 The bond formed between glucose and fructose to form sucrose α 1 , 4 Glycosidic bond β 1 , 4 Glycosidic bond α 1 , 2 Glycosidic bond β 1 , 2 Glycosidic bond
16 Pick up the wrong statement from the following Oils are lighter than water Animal fats are solid at room temperature Specific gravity of fats is higher than water Fats containing saturated fatty acids are solid
17 Pick up the example of a dinucleotide: ATP GTP ADP NAD
18 All carbon atoms in a monosaccharide ____ have hydroxyl group Except one Except Two <span style="white-space: normal;">Without Exception</span> Except last
19 In free state Glucose is present in: Grapes Dates Figs All Fruits
20 The compound formed by the combination of a base and a pentose sugar is called: Nucleoside Nucleic acid Nucleotide Nuclein
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