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1) Proteins are polymers of a. Fatty acids b. Isoprenoid units c. Amino acids d. Nucleotides
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2) The element in basic structure of proteins which differentiate them from carbohydrates is a. C b. S c. H d. N
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3) Total number of amino acids discovered so far in cells and tissues are a. 20 b. 25 c. 150 d. 170
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4) In Glycin an amino acid R group is replaced by a. H b. CH3 c. COOH d. C = O
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5) A bond formed by linkage between -OH of carboxyl group of one amino acid and H of amino group of another amino acid which releases water is called a. Phosphodiester linkage b. Glycosidic bond c. Peptide bond d. Hydrogen bond
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6) Total number of amino acids in a hemoglobin molecule are: a. 554 b. 564 c. 574 d. 584
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7) An insulin molecule consists of _____ polypeptide chains. a. 1 b. 2 c. 3 d. 4
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8) Which structure of protein gives information aboutnumber and sequence of amino acids in it? a. Primary structure b. Secondary structure c. Tertiary structure d. Quaternary structure
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9) In an aqueous environment the most stable tertiary conformation is that in which ______ amino acids are buried inside the conformation. a. Hydrophobic b. Hydrophilic c. Basic d. None of these
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10) Hemoglobin molecule exhibits which structural organization of proteins a. Primary structure b. Secondary structure c. Tertiary structure d. Quaternary structure
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11) Which of the following does not show quaternary structure? a. Haemoglobin b. Pepsin c. Fibrin d. Insulin
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12) Which structural organization is most common in globular proteins? a. Primary b. Secondary c. Tertiary d. Quaternary
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13) Actin and myosin are the basic proteins involved in contractile machinery of our body to which type of proteins do they belong? a. Globular proteins b. Fibrous Proteins c. Both a and b d. None of these
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14) Antibodies play important role against microorganisms and other pathogens to which type of proteins do they belong? a. Globular proteins b. Fibrous Proteins c. Both a and b d. None of these
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15) ATP is a an important molecule for its major function a. As an energy currency of the cell b. As a coenzyme c. Both a and b d. None of these
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16) Each turn of DNA contain _______ nitrogenous base pairs a. 5 b. 10 c. 20 d. 25
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17) The first organism of whose genome was completely discovered was a. Human beings b. Influenza Virus c. Hemophilus Influenza d. None of these
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18) Which of the following statement is incorrect about RNA? a. The pentose sugar in it is Ribose. b. It contains Adenine Guanine Thymine and Cytosine c. It is present in the nucleoli d. It may be folded back on itself to give double helical characteristics.
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19) rRNA constitutes _____ % of the total cellular RNA. a. 3-4 % b. 10-20% c. 80% d. 90%
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20) There are mainly _______ types of tRNA a. 170 b. 20 c. 25 d. 15
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21) Most of the cellular secretions are _____ in nature. a. Glycolipids b. Glycoproteins c. Nucleohistones d. Proteins
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22) Which conjegated molecules play important role in gene expression? a. Glycolipids b. Glycoproteins c. Nucleohistones d. None of these
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23) The survival of an animal depends upon its ability to take some from its environment a. Chemicals b. Hydrocarbons c. Organic molecules d. Inorganic molecules
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24) Interconversion of carbohydrates proteins and lipids in living cells are an example of a. Coordinated catabolic activities b. Coordinated anabolic activities c. Both A and B d. Any one
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25) Carbon commonly combines with a. H b. N & O c. P & S d. All of these
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26) Non polar organic molecules are _______ in water. a. Soluble b. Insoluble c. Partially soluble d. Depends upon condition
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27) In living organisms the lubricant which provides protection against damage resulting from friction is a. Carbohydrates b. Fatty acid c. Water d. Protein
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28) In Cx(H2O)y x ranges from a. 1 to 3 thousand b. 3 to many thousand c. 3 to 5 thousand d. 5 to 9 thousand
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29) Glycolipids and glycoproteins have structural role in the _____ matrix of animal and bacterial cell a. Extracellular b. Intracellular c. Both of these d. Glucose
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30) The trioses which are intermediate in respiration and photosynthesis are a. Glyceraldehydes b. Dihydroxy acetone c. Both of these d. None of these
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31) Keto group is represented as a. CO b. C-COO-C c. HCOH d. HOH
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32) The monosaccharide found in some bacteria and occurring rarely are a. Trioses b. Hexoses c. Tetroses d. Pentoses
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33) How many carbon atoms are required to form a furan ring (ribofuranose) a. 3 b. 4 c. 5 d. 2
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34) In esterification OH comes from a. Organic acid b. Alcohol c. Water d. Sugar
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35) Triglyceride is also known as a. Natural lipid b. Neutral lipid c. Neutral wax d. All of these
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36) Which one is not found in fatty acids in acylglycerols? a. C-6 b. C-25 c. C-26 d. C-30
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37) Animals fats are ___________ atroom temperature a. Liquids b. Gases c. Solids d. None of these
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38) So far over _____ number of species of animals are known: a. million b. 1 million c. 1 d. 2 million
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39) Which of the following category is most general with its members lest resembling with each other than the other categries: a. Species b. Genus c. Family d. Order
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40) Solanum tuberosum is a scientific name of: a. Onion b. Amaltas c. Potato d. Tomato
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41) Allium cepa is the scientific name of : a. Onion b. Amaltas c. Potato d. Tomato
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42) Those organisms which can prepare their own food from simple inorganic material and can store energy are called a. Autotrophs b. Heterotrophs c. Procariotique d. Eu-cariotique
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43) Which of the Euglenas (a Protoctista) character resembles that of animals: a. They can move b. They lack cell wall c. They do not have chlorophyll d. Both a and b
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44) The word which E-Chatton suggested for bacteria and blue green algae was: a. Autotrophs b. Heterotrophs c. Pro-cariotique d. Eu-cariotique
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45) Organisms of which of the following kingdom have absorptive mode of nutrition: a. Prokaryotae b. Protoctista c. Animalia d. Fungi
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46) Which of the following organisms have Chitin as a major structural component of their cell wall: a. Prokaryotae b. Protoctista c. Plantae d. Fungi
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47) Five kingdom classification was proposed by : a. Carlous Linnaeus b. E-Chatton c. Robert Whittaker d. Lynn Margulis and Karlene Schwartz
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48) Amoeba belongs to which kingdom: a. Prokaryotae b. Plantae c. Monera d. Protista
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49) Kingdom Protoctista includes: a. Prokaryotic organisms b. Unicellular organisms c. Fungi d. Eu-cariotiquic organisms
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50) Other name for Kingdom monera is: a. Protoctista b. Prokaryotae c. Archae d. None of these
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