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Test Bank For Biochemistry Concepts And Connections 1st Edition Appling Latest Version A+ $12.99   Add to cart

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Test Bank For Biochemistry Concepts And Connections 1st Edition Appling Latest Version A+

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Test Bank For Biochemistry Concepts And Connections 1st Edition Appling Latest Version A+

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  • July 9, 2024
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Test Bank For Biochemistry Concepts And Connections 1st
Edition Appling Latest Version A+




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,Created By: A Solution




Biochemistry: Concepts and Connections (Appling et al.)
Chapter 1 Biochemistry and the Language of Chemistry

1) Each of the following is a noncovalent interaction EXCEPT:
A) a hydrogen bond.
B) a carbon-hydrogen bond.
C) the interaction between an amino and a carboxylate group.
D) a van der Waals interaction.
E) an interaction between —NH3+ and a water molecule.
Answer: B
Objective: 2.1
Global LO: G7


2) The most important noncovalent interaction in biochemistry is the bond.
Answer: hydrogen
Objective: 2.1
Global LO: G7


3) Which of the following is FALSE when considering van der Waals interactions?
A) The van der Waals radius represents the most stable distance between two interacting centers.
B) Van der Waals radii can determine molecular surfaces.
C) Molecules that interact by van der Waals forces do not interpenetrate.
D) The total interaction energy is the sum of the attractive and repulsive forces.
E) They are not important in determining the stability of three-dimensional structures of proteins.
Answer: E
Objective: 2.2
Global LO: G2


4) Which of the following in biological compounds are sufficiently electronegative to serve as
strong donors in a hydrogen bond?
A) Hydrogen and oxygen
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B) Oxygen and nitrogen
C) Nitrogen and hydrogen
D) Hydrogen and carbon
E) Nitrogen and carbon
Answer: B
Objective: 2.2
Global LO: G7


5) Hydrogen bonds share features of both covalent and noncovalent bonds.
Answer: TRUE
Objective: 2.2
Global LO: G2




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6) Which of the following is TRUE of hydrophobic molecules?
A) They have limited solubility in water.
B) Water forms a cage-like structure around them.
C) Dissolving in water decreases the entropy of the mixture.
D) They self-associate by releasing some of the surrounding water molecules.
E) All of the above
Answer: E
Objective: 2.3
Global LO: G2


7) Water is both a hydrogen bond donor and acceptor.
Answer: TRUE
Objective: 2.3
Global LO: G2


8) Amphipathic molecules are not able to interact via van der Waals forces.
Answer: FALSE
Objective: 2.3
Global LO: G2


9) Ionic compounds can be readily dissolved in water because the high dielectric constant of
water screens and decreases the force between the oppositely charged ions.
Answer: electrostatic
Objective: 2.3
Global LO: G7


10) The describes the tendency for hydrophobic molecules to aggregate because of the
exclusion of water with the consequent increase of entropy of the solvent.
Answer: hydrophobic effect
Objective: 2.3
Global LO: G7


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