Mastering Bio Questions And Answers

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1. Part A: In this reaction _____. *The products have less potential energy than the reactants. Part B: In this reaction _____. *heat has been released into the environment. Part C: The reaction A --> B + C + heat is released in a(n) _____ reaction. *Exergonic Part D: A(n) _____ reaction occurs spontaneously. *Exergonic Part E: Which of these reactions requires a net input of energy from its surroundings? *Endergonic Part F: In cells, what is usually the immediate source of energy for an endergonic reaction? *ATP Part G: The reaction ADP + P --> ATP is a(n) _____ reaction. *Endergonic Part H: The energy for an endergonic reaction comes from a(n) _____ reaction.*Exergonic Part I: What is the fate of the phosphate group that is removed when ATP is converted to ADP?*it is acquired by a reactant in an endergonic reaction. Part J: This graph illustrates a(n) _____ reaction.*Endergonic Part K: Select the INCORRECT association. *Exergonic….uphill Part L: What is energy coupling? *The use of energy released from an exergonic reaction to drive an endergonic reaction 2. Part A: Which term describes the degree to which an element attracts electrons? *Electronegativity Part B: Which terms describe two atoms when they form a bond in which electrons are completely transferred from one atom to the other? *Anion and Cation Part C: Which of the following statements is true of the bonds in a water molecule? *Oxygen holds electrons more tightly than hydrogen does, and the net charge is zero Part D: Which of the following statements is not true of most cellular redox reactions? *A hydrogen atom is transferred to the atom that loses an electron. Part E: What kind of bond is formed when lithium and fluorine combine to form lithium fluoride? *Ionic Part F: Gaseous hydrogen burns in the presence of oxygen to form water:

2H2 + O2 → 2H2 O + energy

Which molecule is oxidized and what kind of bond is formed? *Hydrogen, Polar 3. A cell has enough available ATP to meet its needs for...
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