HUMAN A+P MOD.MASTERING
2nd Edition
ISBN: 9780136919520
Author: AMERMAN
Publisher: PEARSON
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Chapter 2, Problem 11CYR
Summary Introduction
Introduction:
Water, the universal solvent, constitutes 60–80% of the mass of our bodies. The chemical formula forwater is H2 O. Water isalso considered to be the most abundant chemical on Earth.
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Because water has high specific heat...
A. Water can change temperature more quickly than other substances.
B. Water can stick to other water molecules
C. Water can dissolve many substances
D. Water will not change temperature as easily as other substances
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. Bases are defined as hydrogen ion donors. c. As a solution’s pH rises, it becomes more acidic. d. A buffer is a system of chemicals that resists a change in pH. e. A solution with a pH of 10 has more hydrogen ions than a solution with a pH of 2.
two 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.
Chapter 2 Solutions
HUMAN A+P MOD.MASTERING
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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- A solution that conducts electricity must contain Select one: a. Hydrophobic molecules b. Polar molecules c. Ionsarrow_forwardWhich of the following characteristics of a water-insoluble substance is most important in governing its diffusibility through a cell membrane? a. Molecular weight b. Electrical charge c. Lipid solubility d. Diameter e. Three-dimensional shapearrow_forwardWhich of the following statements is TRUE? A. Water and electrolytes move across the cell membranes only through protein channels B. Water and electrolytes cannot move across cell membranes C. Water freely moves across cell membranes D. Electrolytes freely move across cell membranesarrow_forward
- The inside of a cell contains several buffers. These buffers help ensure that Select one: a. pH inside the cell changes rapidly to balance pH changes outside the cell b. pH inside the cell remains at equilibrium with the pH outside the cell c. pH inside the cell changes rapidly to help maintain the environment outside the cell d. pH inside the cell remains stable when extracellular pH changesarrow_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_forwardDefine the following terms: a. phospholipids b. soap c. surface active agent d. phosphoglyceride e. sphingomyelinarrow_forward
- The following statements describe the reason why water is most essential nutrient, except: A. Water makes up about 60% of the adult human weight and is not caloric. B. Essential nutrients are dissolved in water. C. Water regulates body temperature. D. Water is needed for various metabolic processes in the body.arrow_forwardThe smallest unit of any substance is the . a. atom b. molecule c. cellarrow_forwardBoth water and the cytosol of cells are hydrophilic. Select one: a. True b. Falsearrow_forward
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