Which of the following statements about enzymes is incorrect? Short-Answer Quest

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Which of the following statements about enzymes is incorrect? Short-Answer Questions ! can initiate chemical reactions b) Enzymes speed up chemical reactions Enzymes often induce conformational 100 HARD 1. An atom of sodium has an atomic number of 11 and an atom of chlorine has an atomic number of 17 a) Indicate the number of electrons that are changes in the substrates that they bind particular substrates during the reactions thermoie d) Enzymes contain an active site for binding of present in the outermost electron shell of b) Predict what type of bond would form e) Enzymes undergo a permanens thange 0 EASY between these atoms, and explain why 18. Which of the following nudleod le basos are present in equal amounts in DNA a) adenine and cytosine b) thymine and guanine d adenine and guanine 2. Explain how hydrogen bonding plays a part in each of the 3. There are many deaning products on the market that 4. Some people who are watching what they eat may opt for unque properties of water and, in essence, ellows for life advertise their ability to get rid of stubborn, oily dirt. Why is water alone not sufficient for removing oily dirt? d) thymine and cytosine e) adenine and thymine a salad when they are dining include lettuce, celery, strawberries, walnuts, chicken, and a salad dressing of oil and vinegar. Explain which category of major macromolecules each of these individual salad components falls into. Then explain the general purpose or function of each major macromolecule. 19. Which type of macromolecule contains an organisms out. A dinner salad may genetic information? a) polysaccharide b) monosaccharide c) fatty acid d) DNA See Answers at the back of the book For additional study questions, go to www.prep-u.com. 20. All of the following are features of RNA except a) a sugar-phosphate-sugar-phosphate 100 HARD backbone. b) a coiled double-stranded structure d) a different type of sugar than is found in d) an ability to direct protein production e) a different type of base than is found in EASY DNA ABOUT THE CHAPTER OPENING PHOTO Hydrogen tonding between molecules gives water cohesiveness This causes the water to bead up when on urfaces that water molecuies attracted to the waxy leaves of many 79

Explanation / Answer

17. a) enzymes undergo a permanent change during the reactions they promote

18. e) adenine and thymine

19. d) DNA

20. b) coiled double stranded structure

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