Potential energy stored in bonds of molecules is _____ energy.
A.
mechanical
B.
thermal
C.
chemical
D.
molecular
E.
None of the above
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Question 2) Potential energy is
A. stored energy that could do work but is not doing so.
B. movement of ions or electrons.
C. the form of energy that actually does work.
D. energy that flows between objects with different temperatures.
E. energy that moves in waves.
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Question 3) If the potential energy in the chemical bonds of the reactants is greater than the potential energy in the chemical bonds of the product,
A. energy must be supplied for the reaction to occur.
B. the chemical reaction equalizes the potential energy levels.
C. energy is not a factor in the reaction.
D. energy has not been gained or lost.
E. energy is released by the reaction.
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Question 4) Chemical energy
A. moves matter.
B. results from the position or movement of objects.
C. is a form of potential energy within chemical bonds.
D. comes from the sun.
E. is not important in physiological processes.
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Question 5) The energy stored in ATP is a form of ________ energy.
A. mechanical
B. heat
C. electrical
D. chemical
E. kinetic
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Question 6) In the reversible reaction, CO2 + H2O H2CO3 H+ + HCO3- , a decrease in respiration rate will increase the concentration of CO2 in the blood. What will this do to the amount of H+ in the blood?
A. H+ will decrease.
B. H+ will increase.
C. H+ will be unchanged.
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Question 7) In a reversible reaction, when the rate of product formation is equal to the rate of reactant formation, the reaction is
A. in danger of exploding.
B. a net decomposition reaction.
C. a net synthesis reaction.
D. stopped.
E. at equilibrium.
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Question 8) Chemical reactions with the property of being able to proceed from reactants to products and from products to reactants are called
A. synthesis reactions.
B. decomposition reactions.
C. exchange reactions.
D. reversible reactions.
E. net reaction rates.
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Question 9) Reactions that use water to split molecules apart are called _______ reactions.
A. reversible
B. synthesis
C. oxidation
D. dehydration
E. hydrolysis
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Question 10) Why are cyanide compounds lethal to humans?
A. They interfere with protein synthesis.
B. They interfere with nerve impulses.
C. They interfere with the production of ATP.
D. They interfere with muscle contraction.
E. All of these occur with cyanide poisoning.
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