Biology: Life on Earth with Physiology (11th Edition)
11th Edition
ISBN: 9780133923001
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 2, Problem 4MC
Summary Introduction
Introduction:
Molecules are formed from the interaction of atoms of the same or different elements. Molecules represent the chemical compounds made up of two or more atoms which retain the chemical properties of elements or compounds. Molecules can be held together by ionic bond, covalent bond, or hydrogen bond. Molecules may be polar or nonpolar. Molecules combine together to form compounds.
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Chapter 2 Solutions
Biology: Life on Earth with Physiology (11th Edition)
Ch. 2.1 - Unstable Atoms Unleashed Because exposure to...Ch. 2.1 - define clement and atom?Ch. 2.1 - What is the mass number of hydrogen? Of helium?Ch. 2.1 - Prob. 2CYLCh. 2.1 - Prob. 2TCCh. 2.1 - explain atomic number and mass number?Ch. 2.1 - What causes the coals of a campfire to glow?Ch. 2.1 - explain radioactivity and its dangers and...Ch. 2.1 - In addition to lower brain activity, what other...Ch. 2.1 - describe electron shells?
Ch. 2.2 - Prob. 1CYLCh. 2.2 - At a physical exam, Thomas, a sedentary...Ch. 2.2 - Prob. 2CYLCh. 2.2 - explain atomic number and mass number?Ch. 2.3 - Unstable Atoms Unleashed Scientists believe that...Ch. 2.3 - Prob. 1CYLCh. 2.3 - The slap of a belly flop provides firsthand...Ch. 2.3 - If you placed a salt crystal in a nonpolar liquid...Ch. 2.3 - Prob. 2CYLCh. 2.3 - Predict how a drop of water on an oil-coated...Ch. 2.3 - explain atomic number and mass number?Ch. 2.3 - Prob. 3TCCh. 2 - Detergents help clean by dispersing fats and oils...Ch. 2 - An atom consists of an atomic nucleus composed of...Ch. 2 - Which of the following is false? a. An dement is...Ch. 2 - Prob. 1RQCh. 2 - Prob. 2ACCh. 2 - An atom that has lost or gained one or more...Ch. 2 - Prob. 2MCCh. 2 - Distinguish between atoms and molecules and among...Ch. 2 - Prob. 3ACCh. 2 - Prob. 3FIBCh. 2 - Prob. 3MCCh. 2 - Prob. 3RQCh. 2 - Prob. 4FIBCh. 2 - Prob. 4MCCh. 2 - Prob. 4RQCh. 2 - Water is described as __________ because each...Ch. 2 - Prob. 5MCCh. 2 - Prob. 5RQCh. 2 - Prob. 6RQCh. 2 - Prob. 7RQ
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- . A cation is a(n)a. uncharged atom.b. positively charged atom.c. negatively charged atom.d. atom that has gained an electronarrow_forwardNoncovalent bonds include all of the following except: a. van der Waals interaction b. ionic bonds c. carbon–oxygen double bond d. hydrogen bondarrow_forwardThis type of noncovalent bond is responsible for clustering fatty acid tails of phospholipids in a micelle. a. Disulfide bonds b. Hydrogen bonds c. Hydrophobic interactions d. Ionic interactions e. van der Waals interactionsarrow_forward
- A covalent bond forms whena. electrons are present in a valence shell.b. a valence electron is removed from one atom and added to another.c. a pair of valence electrons is shared between two atoms.d. the electronegativity of one atom is much greater than that ofanother atom.arrow_forwardSaturated fats: A. contain many double bonds B. exist as solids at room temperature C. have two fatty acid chains D. exist as liquids and are derived from plants E. are formed from 4 interlocking carbon ringsarrow_forwardWater has some very unusual properties. These properties occur because of thea. hydrogen bonds between the individual water molecules.b. covalent bonds between the individual water molecules.c. hydrogen bonds within each individual water molecule.d. ionic bonds between the individual water molecules.arrow_forward
- Which of the following statements is incorrect about disulfide bonds? a. They form between two cysteine amino acids.b. They are noncovalent.c. They contribute to the tertiary structure of some proteins.d. They contribute to the quaternary structure of some proteins.e. They involve the loss of two hydrogen atoms.arrow_forwardClassify each of the following bonds as nonpolar covalent, polar covalent, or ionic on the basis of electronegativity differences.a. C—Ob. Na—Clc. C—Id. Ca—Sarrow_forwardA hydrogen bond is distinct from ionic and covalent bonds in that ita. is a weak attraction between two molecules.b. forms only between two hydrogen atoms.c. is considerably stronger than the other two types of bonds.d. occurs more commonly in lipids than in other types of moleculesarrow_forward
- Which of the following is incorrect about lipids? a. Some contain polar groups referred to as "polar head" Ob. The bulk of their structure is hydrocarbon-like c. They are water-soluble bio-compounds d. They lack a common functional grouparrow_forwardWhich of the following bonding types is the most important in the nonaqueous interfaces between protein subunits? a. van der Waals interactions b. the hydrophobic effect c. ionic bonds d. disulfide bridgesarrow_forwardSaturated fats have all of the following characteristicsexcept:a. they are solid at room temperatureb. they have single bonds within the carbon chainc. they are usually obtained from animal sourcesd. they tend to dissolve in water easilyarrow_forward
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