261 Membranes of the grane are sites where? Biology Medium Full question → A Oxygen is stored B Food is stored C Sunlight is trapped D CO2 is stored.
262 Each turn of DNA contain ____________ nitrogenous base pairs? Biology Medium Full question → A 5 B 10 C 20 D 25
263 Protein coasts of viruses are synthesized in____________? Biology Medium Full question → A Lytic cycle B Lysogenic cycle C Both a & b D All of these
264 Which of the following statement is incorrect about RNA_________________? Biology Medium Full question → 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.
265 In an aqueous environment the most stable tertiary conformation is that in which _________ amino acids are buried inside the conformation? Biology Medium Full question → A Hydrophobic B Hydrophilic C Basic D None of these
266 Hemoglobin molecule exhibits which structural organization of proteins___________? Biology Medium Full question → A Primary structure B Secondary structure C Tertiary structure D Quaternary structure
267 Locomotory structures are not found in which of the following group? Biology Medium Full question → A Amoebas B Zooflagellates C Ciliates D Apicomplexans
268 Which structure of protein gives information aboutnumber and sequence of amino acids in it_______________? Biology Medium Full question → A Primary structure B Secondary structure C Tertiary structure D Quaternary structure
269 Total number of amino acids in a hemoglobin molecule are__________? Biology Medium Full question → A 554 B 564 C 574 D 584
270 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__________? Biology Medium Full question → A Phosphodiester linkage B Glycosidic bond C Peptide bond D Hydrogen bond
271 The windpipe or trachea lies? Biology Medium Full question → A Dorsal to oesophagus B Ventral to oesophagus C Lateral to oesophagus D None of these
272 An insulin molecule consists of _________ polypeptide chains? Biology Medium Full question → A 1 B 2 C 3 D 4
273 The major constituent of blood plasma is___________? Biology Medium Full question → A Protein B NaCl C Water D Cholesterol
274 Total number of amino acids discovered so far in cells and tissues are______________? Biology Medium Full question → A 20 B 25 C 150 D 170
275 Hunger pangs usually begin ______ after the previous meal. Biology Medium Full question → A 2-4 hours B 6-8 hours C 10-12 hours D 12-24 hours
276 The element in basic structure of proteins which differentiate them from carbohydrates________? Biology Medium Full question → A C B S C H D N
277 How many moles of carbon dioxide are produced by complete oxidation of one mole of puruvic acid? Biology Medium Full question → A 1 B 2 C 3 D 6
278 In Glycin an amino acid R group is replaced by____________? Biology Medium Full question → A H B CH3 C COOH D C = O
279 Which of the following is the empirical formula of chlorophyll b? Biology Medium Full question → A C55H70O5N4Mg B C55H72O6N4Mg C C55H70O6N4Mg D C55H72O5N4Mg
280 Proteins are polymers of___________? Biology Medium Full question → A Fatty acids B Isoprenoid units C Amino acids D Nucleotides