Test Bank for Biochemistry 9/E Campbell

1. How do the molecules that play a role in living cells compare to those encountered in organic chemistry? a. They are the same, just operating in a different context. b. Biological molecules are organic molecules, but the similarity ends there. c. Biological molecules aren't similar to organic molecules at all. d. Biology isn't based on molecules at all, but a "vital force". ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: False LEARNING OBJECTIVES: CAFA.BIOC.15.1 - New in 6e TOPICS: Basic Themes DATE CREATED: 12/23/2013 2:14 PM DATE MODIFIED: 12/23/2013 2:14 PM 2. Which of the following shows the correct order from most simple to most complex: a. atom, molecule, organelle, macromolecule b. molecule, atom, macromolecule, organelle c. tissue, cell, organ d. atom, macromolecule, tissue, organ ANSWER: d POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: False LEARNING OBJECTIVES: CAFA.BIOC.15.2 - Added in 8e TOPICS: Basic Themes DATE CREATED: 12/23/2013 2:14 PM DATE MODIFIED: 11/16/2016 1:13 AM 3. Which of the following best defines organic chemistry? a. The study of compounds contained in organisms. b. The study of compounds containing organs. c. The study of compounds containing carbon and hydrogen and their derivatives. d. The study of compounds containing elements other than carbon. ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: False LEARNING OBJECTIVES: CAFA.BIOC.15.1 - New in 6e TOPICS: Chemical Foundations of Biochemistry DATE CREATED: 12/23/2013 2:14 PM DATE MODIFIED: 12/23/2013 2:14 PM 4. Which of the following is NOT one of the primary simple molecules that scientists believe must have ultimately led to creating living things? a. ammonia b. carbon dioxide c. hydrogen d. simple carbohydrates ANSWER: d POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: False LEARNING OBJECTIVES: CAFA.BIOC.15.3 - New in 8e TOPICS: Basic Themes DATE CREATED: 12/23/2013 2:14 PM DATE MODIFIED: 11/16/2016 12:07 AM 5. Which of the following was part of the vital force theory? a. The compounds found in living things are just like those found in the non-living world. b. The compounds found in living things are interesting, but can easily be produced in the laboratory. c. The compounds found in living things can not be produced in the laboratory. ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: False LEARNING OBJECTIVES: CAFA.BIOC.15.1 - New in 6e TOPICS: Chemical Foundations of Biochemistry DATE CREATED: 12/23/2013 2:14 PM DATE MODIFIED: 12/23/2013 2:14 PM 6. The synthesis of urea from ammonium cyanate. a. was a critical component of the Miller-Urey experiment. b. requires a protein as a catalyst. c. helped dispel the vital force theory. d. supported the vital force theory. ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS: Chemical Foundations of Biochemistry DATE CREATED: 12/23/2013 2:14 PM DATE MODIFIED: 12/23/2013 2:14 PM 7. Which of the following is NOT a Functional Group a. Amino group b. Protein c. Alcohol group d. Carbonyl group ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: False LEARNING OBJECTIVES: CAFA.BIOC.15.4 - New in 7e TOPICS: Chemical Foundations of Biochemistry DATE CREATED: 12/23/2013 2:14 PM DATE MODIFIED: 12/23/2013 2:14 PM 8. Which of the following functional groups is specific to an alcohol? a. -NH b. -OH c. -C=O d. C=C e. O-P ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: False LEARNING OBJECTIVES: CAFA.BIOC.15.3 - New in 8e TOPICS: Chemical Foundations of Biochemistry DATE CREATED: 12/23/2013 2:14 PM DATE MODIFIED: 11/23/2016 12:42 AM 9. Which of the following functional groups are not commonly seen in biomolecules? a. Alkyl halides b. Amides c. Carboxylic acids d. Ethers e. Phosphate esters ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: False LEARNING OBJECTIVES: CAFA.BIOC.15.5 - Modified from 5e TOPICS: Chemical Foundations of Biochemistry DATE CREATED: 12/23/2013 2:14 PM DATE MODIFIED: 12/23/2013 2:14 PM 10. Which of the following statements regarding biomolecules is false? a. They contain predominantly ionic bonds. b. They contain predominantly nonmetallic elements. c. Carbon is the key element. d. Specific stereoisomers are essential in most cases. ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: False LEARNING OBJECTIVES: CAFA.BIOC.15.5 - Modified from 5e TOPICS: Chemical Foundations of Biochemistry DATE CREATED: 12/23/2013 2:14 PM DATE MODIFIED: 12/23/2013 2:14 PM 11. All of the following bonds are important in biomolecules, except: a. C−Cl b. C−H c. C−N d. O−H e. O−P ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS: Chemical Foundations of Biochemistry DATE CREATED: 12/23/2013 2:14 PM DATE MODIFIED: 12/23/2013 2:14 PM 12. Which of the following statements regarding biopolymers is false? a. Different sequences of the monomers can lead to different functions. b. Only soluble polymers can be created from soluble monomers. c. A wide, almost uncountable variety of polymers can be created from just a few monomers. d. Different linkages between the monomers can lead to different functions. e. Biopolymers can fold up into complex shapes. ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: False LEARNING OBJECTIVES: CAFA.BIOC.15.5 - Modified from 5e TOPICS: Chemical Foundations of Biochemistry DATE CREATED: 12/23/2013 2:14 PM DATE MODIFIED: 12/23/2013 2:14 PM 13. Which statement is not correct about peptide nucleic acids, PNA? a. They are combinations of peptides and nucleic acids. b. Scientists create them to study the origins of life c. They were proven to be the first hereditary molecule. d. They may combine the catalytic properties of proteins with the information transfer ability of nucleic acid e. All of these statements apply to PNA. ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: False LEARNING OBJECTIVES: CAFA.BIOC.15.4 - New in 7e TOPICS: Chemical Foundations of Biochemistry DATE CREATED: 12/23/2013 2:14 PM DATE MODIFIED: 12/23/2013 2:14 PM 14. According to the big bang theory of the creation of the universe, a. the universe has been getting cooler since its beginning b. the initial explosion caused the creation of all of the elements of the periodic table c. carbon is the most abundant element in the universe d. the earth could be no older than 1 billion years ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: False LEARNING OBJECTIVES: CAFA.BIOC.15.4 - New in 7e TOPICS: Origin of Life DATE CREATED: 12/23/2013 2:14 PM DATE MODIFIED: 12/23/2013 2:14 PM 15. In its earliest stages, which atoms were present in the universe? a. carbon, hydrogen, and oxygen b. hydrogen, helium, and lithium c. nitrogen, sulfur, and phosphorous d. uranium, polonium, and radium e. helium, neon, and argon ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: False LEARNING OBJECTIVES: CAFA.BIOC.15.1 - New in 6e TOPICS: Origin of Life DATE CREATED: 12/23/2013 2:14 PM DATE MODIFIED: 12/23/2013 2:14 PM 16. How are the majority of elements thought to have been formed? a. By thermonuclear reactions that normally take place in stars. b. In explosions of stars. c. By the action of cosmic rays outside the stars since the formation of the galaxy. d. All of the choices are true e. None of the choices; all the elements were present from the initial Big Bang. ANSWER: d POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: False LEARNING OBJECTIVES: CAFA.BIOC.15.1 - New in 6e TOPICS: Origin of Life DATE CREATED: 12/23/2013 2:14 PM DATE MODIFIED: 12/23/2013 2:14 PM 17. What is the chemical formula for ozone? a. O2 b. O3 c. NH3 d. H2S e. CH4 ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: False LEARNING OBJECTIVES: CAFA.BIOC.15.1 - New in 6e TOPICS: Origin of Life DATE CREATED: 12/23/2013 2:14 PM DATE MODIFIED: 12/23/2013 2:14 PM 18. It is generally believed that the following gas was missing in the primordial atmosphere: a. H2 b. CO2 c. CH4 d. NH3 e. O2 ANSWER: e POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS: Origin of Life DATE CREATED: 12/23/2013 2:14 PM DATE MODIFIED: 12/23/2013 2:14 PM