Question :
11. (p. 25) Which statement correctly describes a hypertonic solution : 1777292
11. (p. 25) Which statement correctly describes a hypertonic solution when compared to another solution?
A. The solution is more concentrated with solutes than the other solution.
B. The solution has the same concentration of solutes as the other solution.
C. The solution is less concentrated with solutes than the other solution.
D. The solution is less concentrated with solvent than the other solution.
12. (p. 26) What is an acid?
A. A molecule with a pH of 7
B. A molecule that releases hydroxide ions when added to water
C. A molecule that releases hydrogen atoms when added to water
D. A molecule with a pH higher than 7
An acid is a molecule that releases a hydrogen ion when added to water. A base is a molecule that will accept the hydrogen ion, often by releasing a hydroxide ion when added to water. Acids have a pH less than 7. Bases have a pH greater than 7.
13. (p. 26) What is a base?
A. A molecule with a pH of 7
B. A molecule that releases hydroxide ions when added to water
C. A molecule that releases hydrogen atoms when added to water
D. A molecule with a pH less than 7
An acid is a molecule that releases a hydrogen ion when added to water. A base is a molecule that will accept the hydrogen ion, often by releasing a hydroxide ion when added to water. Acids have a pH less than 7. Bases have a pH greater than 7.
14. (p. 26) If a solution has a pH of 12, which of the following statement is incorrect?
A. The solution is a base.
B. The solution will release hydroxide ions when added to water.
C. The solution is alkaline.
D. The solution will release hydrogen atoms when added to water.
15. (p. 27) What condition results if the blood's pH is less than 7.35?
A. Acidosis
B. Alkalosis
C. Acidic
D. Alkaline
16. (p. 27) What are the four types of organic molecules?
A. Glucose, proteins, lipids, nucleic acids
B. Carbohydrates, proteins, lipids, nucleic acids
C. Monosaccharides, proteins, lipids, nucleotides
D. D.Carbohydrates, amino acids, lipids, nucleic acids
17. (p. 28) All of the following are examples of the function of proteins except?
A. Transport
B. Strength
C. Fight foreign invaders
D. Store energy
18. (p. 28) Which organic molecules are responsible for composing DNA as the genetic material of the cell?
A. Proteins
B. Lipids
C. Nucleic Acids
D. Carbohydrates
19. (p. 28) What are the building blocks of proteins?
A. Monosaccharide
B. Amino acid
C. Nucleotide
D. Glycerol
20. (p. 28) Which of the following is an example of the function of lipids?
A. Genetic material
B. Transport
C. Fight foreign invaders
D. Store energy