Human Anatomy & Physiology (2nd Edition)
2nd Edition
ISBN: 9780134553511
Author: Erin C. Amerman
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 13CYR
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
a. Acids dissociate in water to give hydrogen ions and an anion.
b. As a solution’s pH rises, it becomes more acidic.
c. A buffer is a system of chemicals that resists a change in pH.
d. A solution with a pH of 10 has more hydrogen ions than a solution with a pH of 2.
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Which of the following describes a buffer?
A. The measure of the amount of hydrogen ions in a liquid
B. A set of chemicals that can keep the pH of a solution stable by alternately donating and accepting the ions that contribute to pH
C. A substance that releases hydrogen ions in water
D. A substance that accepts hydrogen ions in water
Amelia tests several substances in her house to determine their pH values and records the results.
Substance
pH
Lemon juice
2.3
Tap water
6.7
Bleach
12.3
Soapy water
11.7
Can of tomatoes
4.5
Dishwasher detergent
10.9
What do the basic substances have in common?
A
They are all used in cooking.
B
They are all used in cleaning products.
C
They are all clear or transparent.
D
They are all sour tasting when eaten.
In the picture below, both persons carry the same mass of rock salt to be dissolved in the same volume of water. Which of the following statements below is true?
a. The rock salt of person A will dissolve slower because of the larger surface area.
b. The rock salt of person B will dissolve faster because of the smaller surface area.
c. The rock salt of person B will dissolve faster though the surface area of the salt is the same with that of person A.
d. The rock salt of person A will dissolve slower because it does not have a larger surface area than in B.
Chapter 2 Solutions
Human Anatomy & Physiology (2nd Edition)
Ch. 2.1 - What are atoms?Ch. 2.1 - How do the three types of subatomic particles...Ch. 2.1 - What is an element?Ch. 2.1 - 4. How are elements arranged in the periodic...Ch. 2.1 - What are isotopes?Ch. 2.2 - What is a mixture?Ch. 2.2 - 2. How do the three types of mixtures differ?
Ch. 2.2 - Prob. 3QCCh. 2.2 - What is an ionic bond?Ch. 2.2 - 5. How is an ionic bond formed?
Ch. 2.2 - 6. How do polar and nonpolar covalent bonds...Ch. 2.2 - What are hydrogen bonds? Between which types of...Ch. 2.3 - Prob. 1QCCh. 2.3 - What are the differences between the three types...Ch. 2.3 - How do endergonic and exergonic reactions differ?Ch. 2.3 - 4. What are the differences between the three main...Ch. 2.3 - What factors can influence the rate of a chemical...Ch. 2.3 - 6. What is an enzyme, and what is its function?
Ch. 2.4 - What four properties of water make it a good...Ch. 2.4 - 2. Which molecules or compounds are likely to be...Ch. 2.4 - What are acids and bases?Ch. 2.4 - What is the pH scale? Which pH values are...Ch. 2.4 - What is the effect of a buffer on a solution?Ch. 2.4 - What is a salt?Ch. 2.4 - 7. What does an electrolyte do in a solution?
Ch. 2.5 - 1. How do polymers and monomers differ?
Ch. 2.5 - 2. How do monosaccharides, disaccharides, and...Ch. 2.5 - How are two monosaccharides linked to form a...Ch. 2.5 - Prob. 4QCCh. 2.5 - 5. How do phospholipids and triglycerides differ?
Ch. 2.5 - What are steroids?Ch. 2.5 - Prob. 7QCCh. 2.5 - How are amino acids linked to form peptides and...Ch. 2.5 - 9. What are the four levels of structural...Ch. 2.5 - 10. What are the components and roles of ATP?
Ch. 2.5 - 11. How do DNA and RNA differ?
Ch. 2 - Prob. 1CYRCh. 2 - Fill in the blanks: Isotopes are atoms with the...Ch. 2 - 3. Which of the following statements correctly...Ch. 2 - 4. Explain the difference between an ionic and a...Ch. 2 - Identify each of the following molecules or...Ch. 2 - What are hydrogen bonds, and how do they form?Ch. 2 - Prob. 7CYRCh. 2 - Prob. 8CYRCh. 2 - Which of the following would not result in an...Ch. 2 - 10. An enzyme is a:
a. biological catalyst that...Ch. 2 - Prob. 11CYRCh. 2 - With respect to their solubility in water,...Ch. 2 - Mark the following statements as true or false. If...Ch. 2 - A salt is: a. a metal cation bonded to a nonmetal...Ch. 2 - 15. Compare and contrast the structures of...Ch. 2 - 16. Mark the following statements as true or...Ch. 2 - 17. Why is it important for a protein to maintain...Ch. 2 - Which of the following is not part of a...Ch. 2 - 19. Mark the following properties as belonging to...Ch. 2 - Which of the following statements is/are true...Ch. 2 - 1. In certain types of radioactive decay, the...Ch. 2 - Considering that water is a main component of the...Ch. 2 - 3. Explain why monosaccharides are polar and fatty...Ch. 2 - 1. The polysaccharide cellulose is not digestible...Ch. 2 - Some claim that the pH of your blood can be...Ch. 2 - Prob. 3AYKACh. 2 - Prob. 4AYKB
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- Using a pH meter, you find the pH of an unknown solution to be 8.0. How would you describe this solution? a. weakly acidic b. strongly acidic c. weakly basic d. strongly basicarrow_forwardName three vital properties of water in living cells.arrow_forwardA salt does not release ______ in water. a. ions b. H+arrow_forward
- Which of the following elements is or are common to both lipids and proteins? A. Carbon only B. Both hydrogen and oxygen C. Sulphur only D. Sulphur and nitrogenarrow_forwardtwo of these statements are truths and one is a lie. Which of the following statements is a lie? a. The concept of pH is exclusive of how buffers work. b. Salts dissociate into ions (except H+ and OH-) when dissolved in water. c. ATP stores a large amount of potential energy.arrow_forwardSelect the statements that are TRUE regarding Water. SELECT ALL THAT APPLY A. Water is amphoteric B. Water can be a base C. Water is partially charged D. Water can be an acidarrow_forward
- Indicate whether each of the following is due to an increase in pH, a decrease in pH or neither and explain why: __Makes carrots soften more when cooked __Color shifts due to adding chlorine to cake flour __Lowers the amount of iron sulfide formed in hard cooked eggs __Makes anthocyanins more red __Makes an egg white foam more stable __Makes starch dextrinize when heated in boiling water __Raises osmotic pressurearrow_forwardWhich of the following statements is true? a. Acids and bases cannot mix together. b. Acids and bases will neutralize each other. c. Acids, but not bases, can change the pH of a solution. d. Acids donate hydroxide ions (OH–); bases donate hydrogen ions (H+).arrow_forwardWhich of the following are properties of water that make itimportant for living cells?(a) It is a polar molecule that can form solutions.(b) It has high surface tension.(c) It has a high specific heat.(d) It can participate in dehydration and hydrolysisreactions.(e) All of the above.arrow_forward
- List four functions that water performs in the human bodyarrow_forwardThe second part of the question was asking if there would be any other areas in our body that would be affected by a change in pH balance, and if it would cause the areas to be damaged by the change in pH?arrow_forwardWhich of the statement/s is TRUE of electrolytes?I. They are positively and negatively charged particles.II. They are positively charged particles.III. They are negatively charged particles.IV. They regulate fluid distribution in the blood because they are changed.A. I and IV C. I onlyB. Ill and IV D. II and IVarrow_forward
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