) Which of the following is not true of prokeins? 30) A) They have both function
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) Which of the following is not true of prokeins? 30) A) They have both functional and structural roles in the body B) Their function depends on their three-dimensional shape. D They may be denatured or coagulated by heat or acidity. 31) Which of the following would be regarded as an organic molecule? ) They appear to be the molecular carriers of coded hereditary information 1 A) CH4 B) H20 D) Naolr ) What level of protein is represwnied by the coiling of the protvin dhain bkhone inte an aipha helix? A) primary structure C) secondary structure 3) quatenmary structure D) tertiary structure 33) Which of the tollowing statements as tabe? 33) A) Larger partickes move faster than smalkr one and thus colide more ows andi t thus collide more frequently and more B) Catalysts increase the rate of chenical mictions, sometines C) Chemcat reactions progrems at a faster rate wiws the wacting particks are prewat in high 12j Chemical reactions proceed more quiskly at higher tempera forcefully changes in shape numbers 31) S-lest the most cornset tatement regarding aucieic adds 34) A) DNA is corsádened a molecular sluve of DAA during pretean syirthosis B) Three formeseist: DNA, RNA. and tONA C) KNA is a long, single-straided mo sule made up of tw nises A. T.Slaad D) DNA is a long, double.sitranded molecule made up et A, T, G, and Cb 35) Atom X has 17 protons. low a ectrons are in its vaience sell A) 3 36) If atom X has an atomic nunilwr oD4 ?t would have which of tiw tedi,wing? A) 37 eintron C)74 protons 8) 37 protons and9 Dj 37 protons and neutrors protons and mutri S7) An atom with a valence of 3 hawa1otdxf A) 13 B) 17 38) What is the ratio-of fatty acids to glycerel in triglscrnds 21 B) 13Explanation / Answer
30) C - Proteins do not code for hereditery information, DNA does
31 A - Contains Carbon
32) C - Secondary structure
33) A - Larger particles move slower
34)D
35) B- 7 ( 17 protons means there will be 17 electrons- 2 in the first shell, then 8 in the second shell and then 7 in the third shell. )
36) C- 74 protons (atomic number is proton number in the nucleus)
37) A-3 (2 electrons in first shell, 8 in the second, and 3 valence electrons in third- 2+8+3=13)
38) D - 3:1
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