Question 1

Which of the following compounds passes most easily through the cell membrane?

Accepted Answer

A)  Na+ 
B)  glucose 
C)  sucrose 
D)  glycerol 
E)  O2 
A)  Na+ 
B)  glucose 
C)  sucrose 
D)  glycerol 
E)  O2

Question 2

Red blood cells are placed into three solutions, each solution a different concentration of NaCl. One solution is isotonic, one is hypotonic and one is hypertonic with red blood cells. Solution A is _______ and solution C is _______ with the red blood cells.

Accepted Answer

A)  hypertonic; isotonic 
B)  isotonic; hypertonic 
C)  hypotonic; isotonic 
D)  isotonic; hypotonic 
E)  hypotonic; hypertonic 
A)  hypertonic; isotonic 
B)  isotonic; hypertonic 
C)  hypotonic; isotonic 
D)  isotonic; hypotonic 
E)  hypotonic; hypertonic

Question 3

A _______ settles after mixing and contains visible particles.

Accepted Answer

A)  solution 
B)  solvent 
C)  homogenous mixture 
D)  colloidal dispersion 
E)  suspension 
A)  solution 
B)  solvent 
C)  homogenous mixture 
D)  colloidal dispersion 
E)  suspension

Question 4

Which of the following is NOT a cause of renal failure?

Accepted Answer

A)  diabetes 
B)  heart attack 
C)  low blood pressure 
D)  severe dehydration 
E)  infection 
A)  diabetes 
B)  heart attack 
C)  low blood pressure 
D)  severe dehydration 
E)  infection

Question 5

A biologist needs 500 mL of a 10 mM phosphate buffer. The stock solution of the buffer is 100 mM. How much stock solution should be used to make the 10 mM phosphate buffer?

Accepted Answer

A)  500 mL 
B)  5000 mL 
C)  50 mL 
D)  5.0 mL 
E)  0.5 mL 
A)  500 mL 
B)  5000 mL 
C)  50 mL 
D)  5.0 mL 
E)  0.5 mL

Question 6

When MgCl2 dissolves in water, it produces Mg2+ and Cl- ions. Which statement best describes the interaction between ClF1F1F1S1F1F1F10 and water?

Accepted Answer

A)  Chloride anions are attracted to the partial negative charge of oxygen. 
B)  Chloride anions are attracted to the partial positive charge of oxygen. 
C)  Chloride anions are attracted to the partial negative charge of hydrogen. 
D)  Chloride anions are attracted to the partial positive charge of hydrogen. 
E)  Chloride anions are not attracted to any part of water. 
A)  Chloride anions are attracted to the partial negative charge of oxygen. 
B)  Chloride anions are attracted to the partial positive charge of oxygen. 
C)  Chloride anions are attracted to the partial negative charge of hydrogen. 
D)  Chloride anions are attracted to the partial positive charge of hydrogen. 
E)  Chloride anions are not attracted to any part of water.

Question 7

Ethanol dissolving in water is an example of a

Accepted Answer

A)  physical change, because each molecule retains its structural integral and no bonds are broken. 
B)  chemical change because all bonds to ethanol are broken. 
C)  chemical change because new bonds form between the hydrogens. 
D)  physical change because ethanol only loses one hydrogen to water. 
E)  chemical change because ethanol has a charge in solution. 
A)  physical change, because each molecule retains its structural integral and no bonds are broken. 
B)  chemical change because all bonds to ethanol are broken. 
C)  chemical change because new bonds form between the hydrogens. 
D)  physical change because ethanol only loses one hydrogen to water. 
E)  chemical change because ethanol has a charge in solution.

Question 8

The cell membrane separates the interior of the cell from its surroundings, but it does allow the passage of some small molecules from regions of higher concentration to regions of lower concentration. This process is called

Accepted Answer

A)  osmosis. 
B)  simple diffusion 
C)  dialysis. 
D)  dissolution. 
E)  active transport. 
A)  osmosis. 
B)  simple diffusion 
C)  dialysis. 
D)  dissolution. 
E)  active transport.

Question 9

We can predict whether or not a solute dissolves in a solvent with the rule "like dissolves like." This rule means that

Accepted Answer

A)  a solute with the same diameter as the solvent will dissolve. 
B)  a solute with the same phase as the solvent will dissolve. 
C)  a solvent with the same polarity as the solvent will dissolve. 
D)  a solute with the same mass as the solvent will dissolve. 
E)  a solute contains some of the same elements as the solvent it will dissolve. 
A)  a solute with the same diameter as the solvent will dissolve. 
B)  a solute with the same phase as the solvent will dissolve. 
C)  a solvent with the same polarity as the solvent will dissolve. 
D)  a solute with the same mass as the solvent will dissolve. 
E)  a solute contains some of the same elements as the solvent it will dissolve.

Question 10

Which of the following factors affect the solubility of an ionic compound in a solvent?

Accepted Answer

A)  the identity of the ions 
B)  the strength of the electrostatic interactions between the ions 
C)  the temperature of the solvent 
D)  the identity of the solvent 
E)  All of these are factors in solubility. 
A)  the identity of the ions 
B)  the strength of the electrostatic interactions between the ions 
C)  the temperature of the solvent 
D)  the identity of the solvent 
E)  All of these are factors in solubility.

Question 11

How many ions of each type are produced when Na3PO4 is dissolved in aqueous solution?

Accepted Answer

A)  1 Na3PO4 
B)  3 Na+, 1 P+, 4 O2F1F1F1S1F1F1F10 
C)  3 Na+, 4 PO43F1F1F1S1F1F1F10 
D)  3 Na+, 1 PO43F1F1F1S1F1F1F10 
E)  1 Na+, 1 PO4F1F1F1S1F1F1F10 
A)  1 Na3PO4 
B)  3 Na+, 1 P+, 4 O2F1F1F1S1F1F1F10 
C)  3 Na+, 4 PO43F1F1F1S1F1F1F10 
D)  3 Na+, 1 PO43F1F1F1S1F1F1F10 
E)  1 Na+, 1 PO4F1F1F1S1F1F1F10

Question 12

When sodium chloride dissolves in water, it forms _______ with water molecules.

Accepted Answer

A)  hydrogen bonds 
B)  ionic bonds 
C)  dipole-dipole interactions 
D)  covalent bonds 
E)  ion-dipole interactions 
A)  hydrogen bonds 
B)  ionic bonds 
C)  dipole-dipole interactions 
D)  covalent bonds 
E)  ion-dipole interactions

Question 13

Jane Doe has a blood glucose level of 92 mg/dL. How many grams of glucose does she have in 1 L of her blood?

Accepted Answer

A)  0.00092 g 
B)  0.0092 g 
C)  0.092 g 
D)  0.92 g 
E)  9.2 g 
A)  0.00092 g 
B)  0.0092 g 
C)  0.092 g 
D)  0.92 g 
E)  9.2 g

Which of the following compounds passes most easily through the cell membrane?

Red blood cells are placed into three solutions, each solution a different concentration of NaCl. One solution is isotonic, one is hypotonic and one is hypertonic with red blood cells. Solution A is _ and solution C is _ with the red blood cells.

A _______ settles after mixing and contains visible particles.

Which of the following is NOT a cause of renal failure?

A biologist needs 500 mL of a 10 mM phosphate buffer. The stock solution of the buffer is 100 mM. How much stock solution should be used to make the 10 mM phosphate buffer?

When MgCl₂ dissolves in water, it produces Mg²⁺and Cl^- ions. Which statement best describes the interaction between Cl^ and water?

Ethanol dissolving in water is an example of a

The cell membrane separates the interior of the cell from its surroundings, but it does allow the passage of some small molecules from regions of higher concentration to regions of lower concentration. This process is called

We can predict whether or not a solute dissolves in a solvent with the rule "like dissolves like." This rule means that

Which of the following factors affect the solubility of an ionic compound in a solvent?

How many ions of each type are produced when Na₃PO₄ is dissolved in aqueous solution?

When sodium chloride dissolves in water, it forms _______ with water molecules.

Jane Doe has a blood glucose level of 92 mg/dL. How many grams of glucose does she have in 1 L of her blood?

Measuring Matter and Energy

Atomic Structure and Nuclear Radiation

Compounds and Molecules

Chemical Quantities and Chemical Reactions

Changes of State and the Gas Laws

Organic Chemistry: Hydrocarbons

Organic Chemistry and Biomolecules

Acids and Bases

The Reactions of Organic Functional Groups in Biochemistry

Carbohydrates: Structure and Function

Lipids: Structure and Function

Proteins: Structure and Function

Nucleotides and Nucleic Acids

Energy and Metabolism

Filters

Exam 8: Solutions, Colloids and Membranes

Which of the following compounds passes most easily through the cell membrane?

Red blood cells are placed into three solutions, each solution a different concentration of NaCl. One solution is isotonic, one is hypotonic and one is hypertonic with red blood cells. Solution A is _______ and solution C is _______ with the red blood cells.

A _______ settles after mixing and contains visible particles.

Which of the following is NOT a cause of renal failure?

A biologist needs 500 mL of a 10 mM phosphate buffer. The stock solution of the buffer is 100 mM. How much stock solution should be used to make the 10 mM phosphate buffer?

When MgCl2 dissolves in water, it produces Mg2+ and Cl- ions. Which statement best describes the interaction between Cl and water?

Ethanol dissolving in water is an example of a

The cell membrane separates the interior of the cell from its surroundings, but it does allow the passage of some small molecules from regions of higher concentration to regions of lower concentration. This process is called

We can predict whether or not a solute dissolves in a solvent with the rule "like dissolves like." This rule means that

Which of the following factors affect the solubility of an ionic compound in a solvent?

How many ions of each type are produced when Na3PO4 is dissolved in aqueous solution?

When sodium chloride dissolves in water, it forms _______ with water molecules.

Jane Doe has a blood glucose level of 92 mg/dL. How many grams of glucose does she have in 1 L of her blood?

Measuring Matter and Energy

Atomic Structure and Nuclear Radiation

Compounds and Molecules

Chemical Quantities and Chemical Reactions

Changes of State and the Gas Laws

Organic Chemistry: Hydrocarbons

Organic Chemistry and Biomolecules

Acids and Bases

The Reactions of Organic Functional Groups in Biochemistry

Carbohydrates: Structure and Function

Lipids: Structure and Function

Proteins: Structure and Function

Nucleotides and Nucleic Acids

Energy and Metabolism

Filters

Red blood cells are placed into three solutions, each solution a different concentration of NaCl. One solution is isotonic, one is hypotonic and one is hypertonic with red blood cells. Solution A is _ and solution C is _ with the red blood cells.

When MgCl₂ dissolves in water, it produces Mg²⁺and Cl^- ions. Which statement best describes the interaction between Cl^ and water?

How many ions of each type are produced when Na₃PO₄ is dissolved in aqueous solution?