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BS111PracticeChap2-7Ans - BS111 Practice questions 1 Find...

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1 BS111: Practice questions 1. Find the correct match of the functional group and a representative molecule with that group: a. amino group : glucose b. carboxyl group : nitrogenous base c. carbonyl group : aldehyde d. sulfhydryl group : phospholipid e. phosphate group : alcohol Refer to the following figure for the answers to the next two questions: 2. Which shows a Van der Waals interaction site? C 3. Which shows an ionic bond? D 4. Which of the following is a result of a condensation:dehydration reaction? 5. If the pH of stomach gastric juice is 2.0 how much higher is the H ion concentration than that of pure water (pH = 7)? 6. Addition of a Phosphate group to a protein (phosphorylation) can cause a change in function because:
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2 7. Which of the following is found in the DNA double helix and in a completely single stranded RNA polymer? a. Antiparallel strands. b. 5’PO 4 to 3’ÓH phosphodiester bonds. c. Complementarity. d. Uracil. e. Ribose sugar. 8. Which of the following is correct regarding monomers, polymers and templates? 9. Cellulose and starch are both made of glucose monomers but cellulose is indigestible to animals because: For the following two questions the answers are in the key below:
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