Exam 1 Chapters 1 7 CHAPTER 1 Biochemistry An Introduction 1 The instructions for each organism s growth development and reproduction are encoded in 2 A constant source of is required for maintenance of a cell s ordered state A DNA B RNA C Proteins D Cytoplasm E Lipids A Heat B Oxygen C Energy D Stimulus E Water A Replication B Translocation C Translation D Replication E Reductionism A Cell wall B Cell membrane C Nucleus D Cytoplasm E DNA A Extremozymes B High salt concentration C Multicellularity D Low temperature E Extremozymes A Agents of genetic change B Infectious diseases C Bacteriophage D Transduction E None of the above 3 Which of the following is not directly involved in genetic information flow 4 Prokaryotic cells lggack which of the following 5 Which of the following terms or conditions refer to some species of Archaea 6 Terms of processes associated with viruses include all of the following except 7 Which of the following is not an advantage of multicellular organisms over unicellular ones A The cells of multicellular organisms have a relatively stable environment B The cells of multicellular organisms have a division of labor C The cells of multicellular organisms have specialized functions D Multicellular organisms are capable of exploiting the environment more effectively than unicellular organisms E Multicellular organisms are all capable of large scale movement 8 Which of the following classes of compounds make up most of the mass of an organism 9 The chemical properties of organic molecules are determined by specific arrangements of atoms called A Amino acids B Proteins C Lipids D Carbohydrates E Water A Structure B Bonds C Functional groups D Radicals E Molecules A Hydrocarbon B Acid C Alcohol D Aldehyde E Ketone A Hydrocarbon B Acid C Ester D Ether E Aldehyde A Amine B Acid C Ester D Amino acid E Alcohol 10 The following molecule is an example of which class of compounds CH3CH2CH2COOH 11 The following molecule is an example of which class of compounds CH3CH2CH2COOCH2CH3 12 The following molecule is an example of which class of compounds CH3CH2CH NH2 COOH 13 Consider the following molecule Which arrow is pointing to a peptide bond 14 Which of the following classes of biomolecules are the most abundant in nature A A B B C C D D E E A Lipids B Amino acids C Carbohydrates D Proteins E Nucleotides A Fats B Steroids C Fatty acids D Phosphoglycerides E Nucleotides A Proteins B Lipids C Nucleic acids D Carbohydrates E Steroids A Nucleotides B Glucose C Phosphate group D Purines E Pyrimidines 15 All of the following classes of compounds are lipids except 16 The largest molecules in living organisms are 17 Which of the following is not a component of a nucleic acid 18 The following is an example of which reaction class CH3CH2OH CH3CHO H2O 19 The following is an example of which reaction class HOOCCH CHCOOH H2O HOOCCH2CH OH COOH A Substitution B Elimination C Addition D Isomerization E Oxidation Reduction A Substitution B Elimination C Addition D Isomerization E Oxidation Reduction A Substitution B Elimination C Addition D Isomerization E Oxidation Reduction A The sun B Geothermal heat C Carbohydrates D Fats E Other organisms 20 The following is an example of which reaction class CH3Br HSCH2CH NH2 COOH CH3SCH2CH NH2 COOH Br H 21 The ultimate source of energy for life on earth is 22 One of the principal methods that organisms use to obtain energy from chemical bonds is by A Substitution reactions B Dehydration reactions C Oxidation reduction reactions D Hydration reactions E Addition reactions 23 Biochemistry is defined as A The study of life processes B Studies of the molecular basis of life C The study of living organisms D The study of organic compounds in living organisms E The study of living compounds 24 Which of the following is not a waste product of living organisms 25 Which of the following is not an important ion found in living organisms A Carbon dioxide B Water C Urea D Ammonia E Glycine A Na B K C Mg D Ba E Cl 26 Metabolism is best defined as the A Reactions of living cells B Reactions that synthesize large molecules in living cells C Reactions that degrade molecules in living cells D Conversion of food molecules to energy E Reactions that synthesize and degrade molecules in living cells 27 Which of the following is not a role played by carbohydrates in living cells A Energy source B Structural support C Intracellular communication D Both A and B are correct E All are roles played by carbohydrates in living cells 28 Which of the following is not an organelle A Mitochondria B Chloroplast C Nucleus D Cell membrane plasma membrane E Golgi complex 29 Which of the following is the basic structural unit of living organisms A Nucleus B Cell membrane C Tissue D Cell E Cytoskeleton 30 Which of the following is not a common component of biomolecules A Carbon B Hydrogen C Oxygen D Nitrogen E Chlorine A One million B Ten million C Five hundred thousand D Five million E One hundred thousand 31 The average life span of a species is about years 32 Which of the following is not a basic element of life A Phosphorous B Hydrogen C Nitrogen D Oxygen E All of the above are basic elements of life 33 Most biomolecules can be considered to be derivatives of 34 Which of the following amino acids contain a hydrophobic side chain 35 Which of the following small molecules do not form biopolymers A Amino acids B Carbohydrates C Fats D Hydrocarbons E Alcohols A Leucine B Arginine C Glutamine D Glutamic acid E Aspartic acid A Amino acids B Sugars C Fatty acids D Nucleotides E C and D 36 Choose the amino acid that can function as a neurotransmitter 37 Which of the following is not true of life A Life is cellular B Life is information based C Life is complex and dynamic D All living things produce energy using mitochondria E Life adapts and evolves 38 Which of the following is not a component of DNA 39 The sum total of all reactions of a organism is called A Glutamic acid B Alanine C Tyrosine D Lysine E Cysteine A Uracil B Adenine C Cytosine D Guanine E Thymine A Life B Metabolism C Biosynthesis D Anabolism E Energetics A Autonomous B Self organizing C Self maintaining D Intelligent E B and D A Systems biology B Reductionism C Emergence D Robustness E Feedback control 40 Which of the following is not characteristic of an autopoietic system 41 The assumption that a complete understanding of a living organism can be obtained solely by investigating all of its components is called 42 Which