PowerPoint ® Clicker Questions prepared by Mark Hollier, Georgia Perimeter College - Clarkston Campus C H A P T E R © 2013 Pearson Education, Inc.© Annie Leibovitz/Contact Press Images 2 Chemistry Comes Alive

© 2013 Pearson Education, Inc. Which of the following is not an example of matter? a) Blood plasma b) Air we breathe c) A hand bone d) Energy

© 2013 Pearson Education, Inc. Which of the following is not an example of matter? a) Blood plasma b) Air we breathe c) A hand bone d) Energy

© 2013 Pearson Education, Inc. Chemical energy is __________. a) a form of kinetic energy b) energy stored in bonds between atoms c) a form of potential energy d) both b and c

© 2013 Pearson Education, Inc. Chemical energy is __________. a) a form of kinetic energy b) energy stored in bonds between atoms c) a form of potential energy d) both b and c

© 2013 Pearson Education, Inc. Which of the following is an example of the conversion of potential energy into kinetic energy? a) Synthesis of ATP from glucose b) ATP hydrolysis to drive muscle contraction c) Digestion of protein in the stomach d) Pumping ions across a cell membrane

© 2013 Pearson Education, Inc. Which of the following is an example of the conversion of potential energy into kinetic energy? a) Synthesis of ATP from glucose b) ATP hydrolysis to drive muscle contraction c) Digestion of protein in the stomach d) Pumping ions across a cell membrane

© 2013 Pearson Education, Inc. The four elements that comprise 96% of living matter are __________. a) carbon, sodium, nitrogen, oxygen b) carbon, hydrogen, sodium, oxygen c) carbon, hydrogen, nitrogen, sodium d) carbon, hydrogen, nitrogen, oxygen

© 2013 Pearson Education, Inc. The four elements that comprise 96% of living matter are __________. a) carbon, sodium, nitrogen, oxygen b) carbon, hydrogen, sodium, oxygen c) carbon, hydrogen, nitrogen, sodium d) carbon, hydrogen, nitrogen, oxygen

© 2013 Pearson Education, Inc. An atom's nucleus contains __________. a) protons b) neutrons c) electrons d) protons and neutrons

© 2013 Pearson Education, Inc. An atom's nucleus contains __________. a) protons b) neutrons c) electrons d) protons and neutrons

© 2013 Pearson Education, Inc. The element lithium has 3 protons and 4 neutrons in its nucleus. Its mass number is __________. a) 3 b) 4 c) 7 d) 12

© 2013 Pearson Education, Inc. The element lithium has 3 protons and 4 neutrons in its nucleus. Its mass number is __________. a) 3 b) 4 c) 7 d) 12

© 2013 Pearson Education, Inc. When atoms of two different elements bind together, they form a(n) __________. a) compound b) mixture c) element d) solution

© 2013 Pearson Education, Inc. When atoms of two different elements bind together, they form a(n) __________. a) compound b) mixture c) element d) solution

© 2013 Pearson Education, Inc. Which of the following mixture(s) are homogeneous? a) Colloids b) Solutions c) Suspensions d) Both colloids and suspensions

© 2013 Pearson Education, Inc. Which of the following mixture(s) are homogeneous? a) Colloids b) Solutions c) Suspensions d) Both colloids and suspensions

© 2013 Pearson Education, Inc. The most important determinant of an atom's bonding behavior is __________. a) the number of protons in the nucleus b) the total number of electrons c) the number of valence shell electrons d) the number of neutrons in the nucleus

© 2013 Pearson Education, Inc. The most important determinant of an atom's bonding behavior is __________. a) the number of protons in the nucleus b) the total number of electrons c) the number of valence shell electrons d) the number of neutrons in the nucleus

© 2013 Pearson Education, Inc. When atoms gain electrons, __________. a) the atoms become electrically neutral b) the atoms become positively charged c) their atomic mass significantly increases d) the atoms become negatively charged

© 2013 Pearson Education, Inc. When atoms gain electrons, __________. a) the atoms become electrically neutral b) the atoms become positively charged c) their atomic mass significantly increases d) the atoms become negatively charged

© 2013 Pearson Education, Inc. Ionic bonds connect atoms together by __________. a) overlap of valence shells b) charge attractions c) overlap of the nucleus d) attractions between dipoles

© 2013 Pearson Education, Inc. Ionic bonds connect atoms together by __________. a) overlap of valence shells b) charge attractions c) overlap of the nucleus d) attractions between dipoles

© 2013 Pearson Education, Inc. Covalent bonds occur when __________. a) electrons are shared between atoms b) electrons are transferred between atoms c) electrons are lost d) opposite charges attract atoms together

© 2013 Pearson Education, Inc. Covalent bonds occur when __________. a) electrons are shared between atoms b) electrons are transferred between atoms c) electrons are lost d) opposite charges attract atoms together

© 2013 Pearson Education, Inc. An atom will tend to be electronegative if __________. a) it lacks only 1–2 electrons in the valence shell b) it easily donates electrons c) it only has 1–2 electrons in the valence shell d) it is negatively charged

© 2013 Pearson Education, Inc. An atom will tend to be electronegative if __________. a) it lacks only 1–2 electrons in the valence shell b) it easily donates electrons c) it only has 1–2 electrons in the valence shell d) it is negatively charged

© 2013 Pearson Education, Inc. Water, H 2 O, is a polar molecule. Oxygen is electronegative and hydrogen is electropositive. This means that __________. a) each hydrogen pulls electrons away from oxygen and becomes more negative b) the electrons are shared equally c) the oxygen pulls electrons away from hydrogen and becomes more negative d) the oxygen pulls electrons away from hydrogen and becomes more positive

© 2013 Pearson Education, Inc. Water, H 2 O, is a polar molecule. Oxygen is electronegative and hydrogen is electropositive. This means that __________. a) each hydrogen pulls electrons away from oxygen and becomes more negative b) the electrons are shared equally c) the oxygen pulls electrons away from hydrogen and becomes more negative d) the oxygen pulls electrons away from hydrogen and becomes more positive

© 2013 Pearson Education, Inc. Hydrogen bonds are similar to ionic bonds because __________. a) they both are due to opposite charge attractions b) they both occur between like charged atoms c) they both form molecules d) they are both very strong bonds

© 2013 Pearson Education, Inc. Hydrogen bonds are similar to ionic bonds because __________. a) they both are due to opposite charge attractions b) they both occur between like charged atoms c) they both form molecules d) they are both very strong bonds

© 2013 Pearson Education, Inc. In a chemical reaction, ___________ join to form __________. a) products; reactants b) molecules; atoms c) formulas; products d) reactants; products

© 2013 Pearson Education, Inc. In a chemical reaction, ___________ join to form __________. a) products; reactants b) molecules; atoms c) formulas; products d) reactants; products

© 2013 Pearson Education, Inc. Water's unique properties like high heat capacity, high heat of vaporization, and universal solvent can be attributed to its __________. a) oxygen atom b) ability to form hydrogen bonds c) hydrogen atoms d) small size

© 2013 Pearson Education, Inc. Water's unique properties like high heat capacity, high heat of vaporization, and universal solvent can be attributed to its __________. a) oxygen atom b) ability to form hydrogen bonds c) hydrogen atoms d) small size

© 2013 Pearson Education, Inc. When chemical equilibrium is reached, __________. a) no further net change in the amounts of reactants and products occurs b) more reactants are converted to products in the forward direction c) the chemical reaction no longer occurs d) more products are converted to reactants in the reverse direction

© 2013 Pearson Education, Inc. When chemical equilibrium is reached, __________. a) no further net change in the amounts of reactants and products occurs b) more reactants are converted to products in the forward direction c) the chemical reaction no longer occurs d) more products are converted to reactants in the reverse direction

© 2013 Pearson Education, Inc. What will be the effect on a chemical reaction if the concentration of reactants is increased? a) The speed of the reaction will slow. b) The speed of the reaction will increase. c) The speed of the reaction will remain unchanged. d) The reaction will now require a catalyst.

© 2013 Pearson Education, Inc. What will be the effect on a chemical reaction if the concentration of reactants is increased? a) The speed of the reaction will slow. b) The speed of the reaction will increase. c) The speed of the reaction will remain unchanged. d) The reaction will now require a catalyst.

© 2013 Pearson Education, Inc. A substance that is very acidic may have a pH of 1 or 2. This means that the acidic substance __________. a) has a high concentration of OH – ions b) has an equal concentration of OH – and H + ions c) has a low concentration of H + ions d) has a high concentration of H + ions

© 2013 Pearson Education, Inc. A substance that is very acidic may have a pH of 1 or 2. This means that the acidic substance __________. a) has a high concentration of OH – ions b) has an equal concentration of OH – and H + ions c) has a low concentration of H + ions d) has a high concentration of H + ions

© 2013 Pearson Education, Inc. A buffer will release H + ions if the blood pH __________. a) rises (becomes more basic) b) falls (becomes more acidic) c) stays the same d) becomes neutral

© 2013 Pearson Education, Inc. A buffer will release H + ions if the blood pH __________. a) rises (becomes more basic) b) falls (becomes more acidic) c) stays the same d) becomes neutral

© 2013 Pearson Education, Inc. The four major organic compounds that comprise our bodies are __________. a) water, salt, carbon, oxygen b) proteins, carbohydrates, lipids, nucleic acids c) amino acids, fats, sugars, DNA d) carbon, hydrogen, oxygen, nitrogen

© 2013 Pearson Education, Inc. The four major organic compounds that comprise our bodies are __________. a) water, salt, carbon, oxygen b) proteins, carbohydrates, lipids, nucleic acids c) amino acids, fats, sugars, DNA d) carbon, hydrogen, oxygen, nitrogen

© 2013 Pearson Education, Inc. The major function of carbohydrates in the body is __________. a) protein synthesis b) as cellular fuel c) being a genetic blueprint d) forming the basis of the cell membrane bilayer

© 2013 Pearson Education, Inc. The major function of carbohydrates in the body is __________. a) protein synthesis b) as cellular fuel c) being a genetic blueprint d) forming the basis of the cell membrane bilayer

© 2013 Pearson Education, Inc. Which type of reaction occurs when biological molecules are broken down? a) Hydrolysis b) Anabolic c) Dehydration synthesis d) Endergonic

© 2013 Pearson Education, Inc. Which type of reaction occurs when biological molecules are broken down? a) Hydrolysis b) Anabolic c) Dehydration synthesis d) Endergonic

© 2013 Pearson Education, Inc. The three major subclasses of lipids include phospholipids, steroids, and __________. a) fatty acids b) glycerols c) triglycerides d) oils

© 2013 Pearson Education, Inc. The three major subclasses of lipids include phospholipids, steroids, and __________. a) fatty acids b) glycerols c) triglycerides d) oils

© 2013 Pearson Education, Inc. The major building blocks for proteins are __________. a) amino acids b) monosaccharides c) triglycerides d) nucleotides

© 2013 Pearson Education, Inc. The major building blocks for proteins are __________. a) amino acids b) monosaccharides c) triglycerides d) nucleotides

© 2013 Pearson Education, Inc. Functions of proteins do not include acting as __________. a) membrane receptors b) genes c) enzymes d) muscle cell components

© 2013 Pearson Education, Inc. Functions of proteins do not include acting as __________. a) membrane receptors b) genes c) enzymes d) muscle cell components

© 2013 Pearson Education, Inc. The quaternary level of protein structure involves __________. a) individual amino acids b) aggregations of polypeptides forming a complex protein c) alpha-helices d) hydrogen bonds between adjacent amino acids

© 2013 Pearson Education, Inc. The quaternary level of protein structure involves __________. a) individual amino acids b) aggregations of polypeptides forming a complex protein c) alpha-helices d) hydrogen bonds between adjacent amino acids

© 2013 Pearson Education, Inc. An enzyme's ____________ is the molecule upon which an enzyme acts. a) active site b) substrate c) inhibitor d) catalyst

© 2013 Pearson Education, Inc. An enzyme's ____________ is the molecule upon which an enzyme acts. a) active site b) substrate c) inhibitor d) catalyst

© 2013 Pearson Education, Inc. Increasing the concentration of an enzyme's substrate (up to a point) would ___________ the reaction. a) slow down b) speed up c) inhibit d) destroy

© 2013 Pearson Education, Inc. Increasing the concentration of an enzyme's substrate (up to a point) would ___________ the reaction. a) slow down b) speed up c) inhibit d) destroy

© 2013 Pearson Education, Inc. The major building blocks of nucleic acids are __________. a) amino acids b) DNA and RNA c) nucleotides d) sugars

© 2013 Pearson Education, Inc. The major building blocks of nucleic acids are __________. a) amino acids b) DNA and RNA c) nucleotides d) sugars

© 2013 Pearson Education, Inc. The four DNA nucleotides are __________. a) carbon, hydrogen, nitrogen, oxygen b) protein, lipid, nucleic acid, carbohydrate c) primary, secondary, tertiary, quaternary d) adenine, thymine, cytosine, guanine

© 2013 Pearson Education, Inc. The four DNA nucleotides are __________. a) carbon, hydrogen, nitrogen, oxygen b) protein, lipid, nucleic acid, carbohydrate c) primary, secondary, tertiary, quaternary d) adenine, thymine, cytosine, guanine

© 2013 Pearson Education, Inc. Which of the following is not a metabolic function of ATP? a) Providing energy for anabolic reactions b) Providing energy to transport substances across membranes c) Providing energy for diffusion d) Providing energy for muscles to shorten

© 2013 Pearson Education, Inc. Which of the following is not a metabolic function of ATP? a) Providing energy for anabolic reactions b) Providing energy to transport substances across membranes c) Providing energy for diffusion d) Providing energy for muscles to shorten