Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 2.3, Problem 1HYEW
The slap of a belly flop provides firsthand experience of the power of cohesion among water molecules. Because of the hydrogen bonds that interconnect its molecules, the water surface resists being broken. When you suddenly force a large number of water molecules apart with your belly, the result can be a bit painful. Do you think that belly-flopping into a pool of (nonpolar) vegetable oil would hurt as much? If you encountered a deep pool filled with vegetable oil, could you float or swim in it?
Why It Hurts So Much to Do a Belly Flop?
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Chapter 2 Solutions
Biology
Ch. 2.1 - What is the mass number of hydrogen? Of helium?Ch. 2.1 - Unstable Atoms Unleashed Because exposure to...Ch. 2.1 - Prob. 2TCCh. 2.1 - What causes the coals of a campfire to glow?Ch. 2.1 - In addition to lower brain activity, what other...Ch. 2.1 - define clement and atom?Ch. 2.1 - Prob. 2CYLCh. 2.1 - explain atomic number and mass number?Ch. 2.1 - explain radioactivity and its dangers and...Ch. 2.1 - describe electron shells?
Ch. 2.2 - At a physical exam, Thomas, a sedentary...Ch. 2.2 - Prob. 1CYLCh. 2.2 - Prob. 2CYLCh. 2.2 - explain atomic number and mass number?Ch. 2.3 - The slap of a belly flop provides firsthand...Ch. 2.3 - Prob. 1TCCh. 2.3 - Predict how a drop of water on an oil-coated...Ch. 2.3 - Prob. 3TCCh. 2.3 - Prob. 1CYLCh. 2.3 - Prob. 2CYLCh. 2.3 - explain atomic number and mass number?Ch. 2.3 - Prob. 1CTCh. 2 - Which of the following is false? a. An dement is...Ch. 2 - Prob. 2MCCh. 2 - Isotopes are defined as a. atoms of the same...Ch. 2 - Prob. 4MCCh. 2 - Prob. 5MCCh. 2 - An atom consists of an atomic nucleus composed of...Ch. 2 - An atom that has lost or gained one or more...Ch. 2 - Prob. 3FIBCh. 2 - Prob. 4FIBCh. 2 - Water is described as __________ because each...Ch. 2 - Prob. 1RQCh. 2 - Distinguish between atoms and molecules and among...Ch. 2 - Prob. 3RQCh. 2 - Prob. 4RQCh. 2 - Prob. 5RQCh. 2 - Prob. 6RQCh. 2 - Prob. 7RQCh. 2 - Detergents help clean by dispersing fats and oils...Ch. 2 - Prob. 2ACCh. 2 - Prob. 3AC
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- Explain in detail why water molecules are polar. Your explanation can be as long as you wish. Your answer must be in your own words. Your answer must include the following terms: Polar, polar covalent bonds, electronegativity, oxygen, hydrogen, partial positive, partial negartive, electrons.arrow_forwardHow do phospholipids interact with water molecules? Phospholipids do not interact with water because water is polar and lipids are nonpolar. The polar heads interact with water; the nonpolar tails do not. The polar heads avoid water; the nonpolar tails attract water (because water is polar and opposites attract). Phospholipids dissolve in water.arrow_forwardConsider molecule #1. How would these molecules arrange themselves when added to water? A. Would dissolve in water B. Would form a micelle C. Would form a bilayerarrow_forward
- Explain why a water strider insect can walk on the surface of a lake or pond. Use the terms hydrogen bonding, cohesion, and surface tension in your response.arrow_forwardWater displays many unique properties making it essential to life. Which of the following chemical characteristic confers water its unique properties? Water displays many unique properties making it essential to life. Which of the following chemical characteristic confers water its unique properties? Hydrogen bond is found within a water molecule. Water is dipolar. Water is highly electronegative. Water is abundant on Earth. Water is a small molecule that makes up of two hydrogen and one oxygen.arrow_forwardWhen you mix salad oil and water, they immediately separate because ___. A. salad oil is a nonpolar substance that repels water molecules B. salad oil is a nonpolar substance that have is attracted to water molecules C. salad oil is a polar substance that is attracted to water molecules D. salad oil is a polar substance that repels water moleculesarrow_forward
- In your own words, list and define 3 properties of water that make it essential to life.arrow_forwardYou put albumin, the protein responsible for lipid transport through the blood, in methane, a hydrophobic solution. Would you expect albumin to still be functional? Yes the protein would still be functional because its primary structure remains intact Yes the protein would still be functional because it is used to carry lipids No the protein would not be functional because the peptide bonds would be dehydrated No the protein would not be functional because covalent bonds weaken and disrupt secondary structure No the protein would not be functional because the tertiary structure would change to maximize hydrophobic interactionsarrow_forwardwhich structure is formed when fatty acid salts react with water? choices: bilayer, monolayer, clathrate, micellearrow_forward
- A phospholipid is a biomolecule composed of a phosphate group that is bonded to two lipid chains. Which of the following correctly describes the nature of those two components? (a) The phosphate group is hydrophobic, and the lipid chains are hydrophilic. (b) Both the phosphate group and the lipid chains are hydrophilic. (c) Both the phosphate group and the lipid chains are hydrophobic. (d) The phosphate group is hydrophilic, and the lipid chains are hydrophobic.arrow_forwardIn the presence of water, nonpolar associations form between molecules or regions of molecules that are ____. A. partially charged B. hydrophobic C. hydrophilic D. hydrophobic and hydrophilicarrow_forwardWhich of the following molecules is not capable of forming lipid bilayers? a. glycolipids b. wax esters c. phospholipids d. cerebrosidesarrow_forward
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