Question 1

A hydrogen bond can form between a hydrogen atom on a(n)

Accepted Answer

A)  electronegative donor group and another electronegative atom. 
B)  cationic atom and another hydrogen. 
C)  nonpolar donor group and an electronegative atom. 
D)  ionic atom and another anion. 
A)  electronegative donor group and another electronegative atom. 
B)  cationic atom and another hydrogen. 
C)  nonpolar donor group and an electronegative atom. 
D)  ionic atom and another anion.

Question 2

Fill in the table below.

Accepted Answer

The answer of Fill in the table below.  ...

Question 3

What is the concentration of H +  in a solution of 0.05 M NaOH?

Accepted Answer

A)  5 * 10-16 M 
B)  2 *10-13 M 
C)  5*1012 M 
D)  140 M 
A)  5 * 10-16 M 
B)  2 *10-13 M 
C)  5*1012 M 
D)  140 M

Question 4

What chemical reaction causes ATP to be a high-energy molecule?

Accepted Answer

A)  cleavage of phosphoanhydride bond 
B)  transfer of an adenylyl group to form a reactive intermediate 
C)  hydrolysis of phosphoryl group 
D)  oxidation of phosphoanhydride bond 
A)  cleavage of phosphoanhydride bond 
B)  transfer of an adenylyl group to form a reactive intermediate 
C)  hydrolysis of phosphoryl group 
D)  oxidation of phosphoanhydride bond

Question 5

The effects of solutes on the colligative properties of a solution depend only on the

Accepted Answer

A)  chemical properties of the solutes. 
B)  molecular mass of the solutes. 
C)  overall charge of the solute. 
D)  number of solute particles. 
A)  chemical properties of the solutes. 
B)  molecular mass of the solutes. 
C)  overall charge of the solute. 
D)  number of solute particles.

Question 6

Organisms on Earth cannot easily exist at temperatures below 0 $\degree$C because at that temperature

Accepted Answer

A)  hydrogen bonds cannot exist. 
B)  water does not exist in a tetrahedron. 
C)  ice crystals form in the organism. 
D)  proton hopping cannot occur. 
A)  hydrogen bonds cannot exist. 
B)  water does not exist in a tetrahedron. 
C)  ice crystals form in the organism. 
D)  proton hopping cannot occur.

Question 7

The __________ system controls the interconversion among ATP, ADP, and AMP.

Accepted Answer

A)  phosphorylate 
B)  adenylate 
C)  energy conversion 
D)  metabolism 
A)  phosphorylate 
B)  adenylate 
C)  energy conversion 
D)  metabolism

Question 8

If an unknown solution has low pKa value, it can be said with certainty that it is

Accepted Answer

A)  a weak acid. 
B)  a strong acid. 
C)  pure water. 
D)  a nonpolar solution. 
A)  a weak acid. 
B)  a strong acid. 
C)  pure water. 
D)  a nonpolar solution.

Question 9

The change in entropy of a system is a function of a change in

Accepted Answer

A)  temperature and pressure. 
B)  volume and pressure. 
C)  enthalpy and pressure. 
D)  enthalpy and temperature. 
A)  temperature and pressure. 
B)  volume and pressure. 
C)  enthalpy and pressure. 
D)  enthalpy and temperature.

Question 10

What is the final molecule made from the oxidation of H2O by solar energy?

Accepted Answer

A)  ozone 
B)  glucose 
C)  fructose 
D)  carbon dioxide 
A)  ozone 
B)  glucose 
C)  fructose 
D)  carbon dioxide

Question 11

What is the concentration of OH -  in a solution that contains 3.9 * 10-4 M H-?

Accepted Answer

A)  2.6*10-11 M 
B)  3.9 *10-4  M 
C)  2.7 * 10-2  M 
D)  1.0 * 10 - 14  M 
A)  2.6*10-11 M 
B)  3.9 *10-4  M 
C)  2.7 * 10-2  M 
D)  1.0 * 10 - 14  M

Question 12

Given the figure below, label the following: hydration layer, electrostatic interaction, hydrogen bond, van der Waals interaction.

Accepted Answer

The answer of Given the figure below, label the following:...

Question 13

Under what conditions could a biological reaction spontaneously proceed to reactants if the $\Delta$G$\degree$ $\gt$ 0?

Accepted Answer

A)  Reactant concentrations are greater than product concentrations. 
B)  Product concentrations are greater than reactant concentrations. 
C)  Reactant concentrations are equal to product concentrations. 
D)  There are no conditions where this could happen. 
A)  Reactant concentrations are greater than product concentrations. 
B)  Product concentrations are greater than reactant concentrations. 
C)  Reactant concentrations are equal to product concentrations. 
D)  There are no conditions where this could happen.

Question 14

In the figure below, identify the adenine base, ribose, and phosphoanhydride bonds.

Accepted Answer

The answer of In the figure below, identify the adenine...

Question 15

Which of the following acids is the strongest given their Ka values?

Accepted Answer

A)  HF (3.5*10- 4) 
B)  HClO2 (1.1 *10- 2) 
C)  HCN (4.9 * 10-10) 
D)  HNO2 (4.6 *10- 4) 
A)  HF (3.5*10- 4) 
B)  HClO2 (1.1 *10- 2) 
C)  HCN (4.9 * 10-10) 
D)  HNO2 (4.6 *10- 4)

Question 16

In the figure below, which state of matter has the highest entropy?

Accepted Answer

A)  solid phase 
B)  liquid phase 
C)  gas phase 
D)  all are equal entropy. 
A)  solid phase 
B)  liquid phase 
C)  gas phase 
D)  all are equal entropy.

Question 17

What are the three major types of membranes?

Accepted Answer

Plasma membrane, end

Question 18

Hydrophobic interactions between nonpolar molecules result from the

Accepted Answer

A)  tendency to maximize water's interaction with nonpolar molecules. 
B)  strong attractions between nonpolar molecules. 
C)  water becoming more ordered around the nonpolar molecule. 
D)  water ionically bonding to the nonpolar molecule. 
A)  tendency to maximize water's interaction with nonpolar molecules. 
B)  strong attractions between nonpolar molecules. 
C)  water becoming more ordered around the nonpolar molecule. 
D)  water ionically bonding to the nonpolar molecule.

Question 19

Explain the first and second laws of thermodynamics and how they are relevant to the field of biochemistry.

Accepted Answer

The first law of thermodynamics states t

Question 20

Hydrogen bonds in liquid water are formed between

Accepted Answer

A)  two hydrogen atoms on the same molecule. 
B)  the oxygen of one molecule and the hydrogen of another. 
C)  protons and hydroxides. 
D)  two oxygen atoms on different molecules. 
A)  two hydrogen atoms on the same molecule. 
B)  the oxygen of one molecule and the hydrogen of another. 
C)  protons and hydroxides. 
D)  two oxygen atoms on different molecules.

Exam 2: Physical Biochemistry: Energy Conversion, Water, and Membranes

A hydrogen bond can form between a hydrogen atom on a(n)

Fill in the table below.

What is the concentration of H + in a solution of 0.05 M NaOH?

What chemical reaction causes ATP to be a high-energy molecule?

The effects of solutes on the colligative properties of a solution depend only on the

Organisms on Earth cannot easily exist at temperatures below 0 °\degree° C because at that temperature

The __________ system controls the interconversion among ATP, ADP, and AMP.

If an unknown solution has low pKa value, it can be said with certainty that it is

The change in entropy of a system is a function of a change in

What is the final molecule made from the oxidation of H2O by solar energy?

What is the concentration of OH - in a solution that contains 3.9 * 10-4 M H-?

Given the figure below, label the following: hydration layer, electrostatic interaction, hydrogen bond, van der Waals interaction.

Under what conditions could a biological reaction spontaneously proceed to reactants if the Δ\DeltaΔ G °\degree° >\gt> 0?

In the figure below, identify the adenine base, ribose, and phosphoanhydride bonds.

Which of the following acids is the strongest given their Ka values?

In the figure below, which state of matter has the highest entropy?

What are the three major types of membranes?

Hydrophobic interactions between nonpolar molecules result from the

Explain the first and second laws of thermodynamics and how they are relevant to the field of biochemistry.

Hydrogen bonds in liquid water are formed between

Principles of Biochemistry

Nucleic Acid Structure and Function

Protein Structure

Methods in Protein Biochemistry

Protein Function

Enzyme Mechanisms

Cell Signaling Systems

Glycolysis: a Paradigm of Metabolic Regulation

The Citrate Cycle

Oxidative Phosphorylation

Photosynthesis

Carbohydrate Structure and Function

Carbohydrate Metabolism

Lipid Structure and Function

Lipid Metabolism

Amino Acid Metabolism

Nucleotide Metabolism

Metabolic Integration

DNA Replication, Repair, and Recombination

RNA Synthesis, Processing, and Gene Silencing

Protein Synthesis, Posttranslational Modification, and Transport

Gene Regulation

Filters

What is the concentration of H ⁺ in a solution of 0.05 M NaOH?

Organisms on Earth cannot easily exist at temperatures below 0 $\degree$ C because at that temperature

What is the final molecule made from the oxidation of H₂O by solar energy?

What is the concentration of OH ^- in a solution that contains 3.9 * 10^-⁴M H^-?

Under what conditions could a biological reaction spontaneously proceed to reactants if the $\Delta$ G $\degree$ $\gt$ 0?