7) What is the term used for a protein molecule that assists in the proper foldi

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7) What is the term used for a protein molecule that assists in the proper folding of other proteins? A) denaturing protein B) enzyme protein C) renaturing protein D) chaperonin E) tertiary protein 8) 8) It is possible to prepare vesicles f rom portions of the inner mitochondrial membrane. Which one of the following processes could still be carried on by this isolated inner membrane A) both the citric acid cycle and oxidative phosphorylation B) the citric acid cycle C) glycolysis and fermentation D) reduction of NAD E) oxidative phosphorylation 9) If an enzyme in solution is saturated with substrate, the most effective way to obtain a faster yield 9) of products is to A) heat the solution to 90°C B) add an allosteric inhibitor. C) add a noncompetitive inhibitor. D) add more of the enzyme. E) add more substrate. to) In which of the following would there be the greatest need for osmoregulation? 10) A) cells of a tidepool animal such as an anemone B) a lymphocyte before it has been taken back into lymph fluid C) a plant being grown hydroponically (in a watery mixture of designated nutrients) D) an animal connective tissue cell bathed in isotonic body fluid E) a red blood cell surrounded by plasma 1) You have a friend who lost 7 kg (about 15 pounds) of fat on a regimen of strict diet and exercise. 11) How did the fat leave her body? A) It was broken down to amino acids and eliminated from the body B) It was released as CO2 and H2O. C) It was converted to heat and then released. D) It was converted to urine and eliminated from the body E) It was converted to ATP, which weighs much less than fat. 12) ) The difference between the sugar in DNA and the sugar in RNA is that the sugar in DNA A) is a six-carbon sugar and the sugar in RNA is a five-carbon sugar B) contains one less oxygen atom C) can form a double-stranded molecule. D) is an aldehyde sugar and the sugar in RNA is a keto sugar. E) is in the a configuration and the sugar in RNA is in the configuration. B-2

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ques7-- (d) CHAPERONIN --is a large oligomeric (assembly) protein molecule that assists in proper folding of other proteins and preventing aggregation. certain disease like Mad Cow Disease is prevented by avoiding misfolding of proteins. molecular chaperons are the one which  belong to a large class of molecules which helps in protein folding. adenosine triphosphate (ATP) provides the energy to fold the proteins. Chaperonin system mainly has Hsp60 and Hsp10 .they often work in association with Hsp70 system. ques12-- (b) sugar in dna has one oxygen atom less at C2 compared to rna. -- the 5 carbon monosaccharides (pentoses) are found in the nucleic acid structure.RNA contains D- ribose while DNA contains D-deoxyribose.ribose and deoxyribose differ in structure at C2.

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