Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Chapter 3, Problem 10TYK
Summary Introduction
Introduction: Solubility is the tendency of a solute to get dissolved in a solvent. A water molecule is shaped like a ‘V’ that consists of an oxygen atom and two hydrogen atoms. Oxygen is more electronegative than hydrogen. Thus, the shared electrons in the O-H covalent bond are more attracted by the oxygen atom.
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What is true about lipids? A. They are polar and therefore soluble in polar solvents B They are polar and therefore soluble in nonpolar solvents C. They are nonpolar solvents D. They are nonpolar and therefore soluble in polar solvents
This occurs when the cations and anions are attracted to the positive and negative ends of water molecules:
A. ionic bonding
B. dissociation
C. covalent bonding
D. hydrogen bonding
Which of the following statements best explains the insolubility of lipids in water?
a.
The structure of lipids includes hydrophilic molecules.
b.
The polar portion of lipids is much larger than the nonpolar portion.
c.
The polar portion of lipids is much smaller than the nonpolar portion.
d.
The polar and nonpolar portions of lipids are of the same size.
Chapter 3 Solutions
Study Guide for Campbell Biology
Ch. 3 - Draw the four water molecules that can...Ch. 3 - The following concept map is one way to show how...Ch. 3 - Prob. 3IQCh. 3 - Complete the following table to review your...Ch. 3 - Prob. 5IQCh. 3 - a. Add to the formula in Interactive Question 3.5...Ch. 3 - Fill in the following table, which summarizes the...Ch. 3 - To become proficient in the use of the concepts...Ch. 3 - Each water molecule is capable of forming a. three...Ch. 3 - The properties of water make it an ideal and...
Ch. 3 - What accounts for the movement of water up the...Ch. 3 - Climates tend to be moderate near large bodies of...Ch. 3 - You have three flasks containing 100 mL of...Ch. 3 - A burn from steam at 100C is more severe than a...Ch. 3 - Evaporative cooling is a result of a. the release...Ch. 3 - Prob. 8TYKCh. 3 - Prob. 9TYKCh. 3 - Prob. 10TYKCh. 3 - Prob. 11TYKCh. 3 - Prob. 12TYKCh. 3 - Prob. 13TYKCh. 3 - Consider two solutions labeled A and B. Solution A...Ch. 3 - What does a buffer do? a. moderates pH changes b....Ch. 3 - Prob. 16TYKCh. 3 - Prob. 17TYKCh. 3 - Prob. 18TYK
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- which of the following solvents would NOT dissolve lipids and why? a. Hot ethanol - because this solvent is polar b. Chloroform - because this solvent is polar c. Water - because this solvent is polar d. hexane - because this solvent is non-polararrow_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_forwardSubstances those are partially dissolved in water are commonly known as اخترأحد الخيارات a. hydrophilic / hydrophobic b. false statement c. hydrophilic d. hydrophobic e. all given choices are incorrectarrow_forward
- 7) Water molecules are attracted to each other. Discuss the nature of the water molecule and how it is that each water molecule is attracted to neighboring water molecules. (4)arrow_forwardThe type of bonding that happens between atoms within a water molecule is which of the following? a. Polar covalent bonding b.ionic bonding c. Non polar covalent bonding d. Hydrogen bondingarrow_forwardMultiple water molecules are held together by... A. Dehydration synthesis B. Covalent bonds C. Hydrogen bonds D. Adhesionarrow_forward
- Cholesterol is which type of lipid? a. wax b. saturated fat c. steroid d. phospholipid e. unsaturated fatarrow_forwardIf the addition of an acid or a base to a solution does not change its pH (or changed minimally), then that solution is referred to as a a. acid b. base c. buffer d. neutral solutionarrow_forwardWhich of the following is a class of molecules that encompasses all of the other molecules listed? a. triglycerides c. waxes e. lipids b. fatty acids d. steroids f. phospholipidsarrow_forward
- Which of the following describes the interaction between the amino acid last eluted and the anion exchanger at pH 7? a. dipole-dipole b. hydrophobic c. ionic d. H-bondingarrow_forwardHydroxyl ion (OH) is a type of the following: O a Acid O b. Base O c. Buffer O d. Salt Oe. None of the Abovearrow_forwardWhich of the following statements about chemicalbonds is true?a. Covalent bonds are stronger than ionic bonds.b. Hydrogen bonds occur between two atoms ofhydrogen.c. Bonding readily occurs between nonpolar andpolar molecules.d. A molecule of water is unlikely to bond with anion.arrow_forward
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