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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Textbook Question
Chapter 2, Problem 9IQ
Draw the structural formula of a water molecule, showing in which direction the shared electrons are pulled. Indicate the areas with slight negative and positive charges that enable a water molecule to form hydrogen bonds with other polar molecules. Then draw a second water molecule and indicate a hydrogen bond between the two.
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The “octet rule” in chemistry helps predict the types of bonds thatatoms will form. In general, an atom will be most stable if it fills itsouter shell of 8 electrons. Atoms with fewer than 4 valence electronstend to donate electrons and those with more than 4 valence electronstend to accept additional electrons; those with exactly 4 can do both.Using this rule, determine what category each of the followingelements falls into: N, S, C, P, O, H, Ca, Fe, and Mg. (You will needto work out the valence of the atoms.)
Which of the following statements is correct regarding polar/nonpolar molecules?
1. Molecules comprised of nonpolar covalent bonds are likely to be hydrophilic
2. Polar molecules like sugar tend to dissolve in solutions of other polar molecules like water
3. Nonpolar molecules like sugar tend to dissolve in solutions of polar molecules like water
4. Polar covalent bonds tend to form between molecules that consist of two atoms of the same element, like oxygen gas (O2) or nitrogen gas (N2)
Match the following terms (A to F) with the statements (i – vi) below by selecting from
the drop-down menus. Each choice may be used once, more than once, or not at all.
A
nonpolar covalent bond
B
polar covalent bond
C
ionic bond
hydrogen bond
E
hydrophobic interaction
F
All of the above
(1) Explains most specifically the attraction of water molecules to each other
(i) Important for self-assembly of membranes
(iii) Important in large biological molecules
(iv) Joins backbone atoms in fatty acids
(v) Easily disrupted in presence of water
(vi) Important for alpha helix and beta sheet formation in proteins
Chapter 2 Solutions
Study Guide for Campbell Biology
Ch. 2 - Fill in the names beside the symbols of the...Ch. 2 - The difference between the mass number and the...Ch. 2 - To move to a shell farther from the nucleus, an...Ch. 2 - Prob. 4IQCh. 2 - Fill in the blanks in the following concept map to...Ch. 2 - Prob. 6IQCh. 2 - Prob. 7IQCh. 2 - Prob. 8IQCh. 2 - Draw the structural formula of a water molecule,...Ch. 2 - Look at your sketch of a water molecule in...
Ch. 2 - Prob. 11IQCh. 2 - Prob. 1SYKCh. 2 - Atoms can have various numbers associated with...Ch. 2 - Prob. 3SYKCh. 2 - Prob. 1TYKCh. 2 - Prob. 2TYKCh. 2 - Prob. 3TYKCh. 2 - Prob. 4TYKCh. 2 - Radioactive isotopes can be used in studies of...Ch. 2 - Prob. 6TYKCh. 2 - Prob. 7TYKCh. 2 - Prob. 8TYKCh. 2 - Prob. 9TYKCh. 2 - Prob. 10TYKCh. 2 - Prob. 11TYKCh. 2 - Prob. 12TYKCh. 2 - Prob. 13TYKCh. 2 - Prob. 14TYKCh. 2 - Prob. 15TYKCh. 2 - A covalent bond between two atoms is likely to be...Ch. 2 - Prob. 17TYKCh. 2 - Prob. 18TYKCh. 2 - For questions 19-21, choose from the following...Ch. 2 - Prob. 20TYKCh. 2 - Prob. 21TYKCh. 2 - Prob. 22TYKCh. 2 - Prob. 23TYKCh. 2 - Prob. 24TYKCh. 2 - Prob. 25TYKCh. 2 - What is the difference between a molecule and a...Ch. 2 - Prob. 27TYKCh. 2 - Prob. 28TYK
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- fill the following table polymer or large biological molecule monomer or smaller subunit one funtion name od covalent bond nulceic acids three fatty acids easter bond acts as an enzyme immediate or long-term energy source glycosidic linkage explain the chemical reaction that occurs water molecules dissociate and reform. why is these chemical reactions the basis of the pH scale?arrow_forwardDefine the following terms: a. hydrocarbon b. hydrophilic c. hydrophobic d. functional group e. R grouparrow_forward:0-H-1--:N-H Hydrogen Bond Which statement best helps explain the formation of the hydrogen bond represented in the figure? A The oxygen has a partial positive charge, and the nitrogen has a partial negative charge. (B) The nitrogen has a partial negative charge, and the hydrogen attached to the oxygen has a partial positive charge.arrow_forward
- Draw a water molecule and a methanol molecule interacting with each other. Label: one polar covalent bond, one nonpolar covalent bond, and one hydrogen bond. Indicate all atoms which have a partial positive or negative charge with the appropriate symbol.arrow_forwardDescribe the polar characteristics of a water molecule.arrow_forwardAnalyze the image that is given below and focus on the yellow arrow to be able to answer the questions. Type of Bond: Choices: H-bond Electrostatic Interaction Hydrophobic bond Disulfide bond Peptide bond Level of Protein structure: Choices: Primary Secondary Tertiary Quaternary Method/s of denaturation. CHECK ALL THAT APPLY Heating to 100 degrees Celsius Addition of nitric acid Reaching Isoelectric point Addition of mercuric chloride Addition of sulphosalicylic acid Addition of alcohol Addition of ammonium sulfatearrow_forward
- 8) Define the following terms: a. Hydrophobic b. Hydrophillic 9) Describe the composition of a phospholipid and its relationship with water. Be specific about how the different parts of a phospholipid interact with water.arrow_forwardDiscuss whether the following statement is correct: “An ionic bond can, in principle, be thought of as a very polar covalent bond. Polar covalent bonds, then, fall somewhere between ionic bonds at one end of the spectrum and nonpolar covalent bonds at the other end.”arrow_forwardAnalyze the image that is given below and focus on the red arrow to be able to answer the questions. Type of Bond: Choices: H-bond Electrostatic Interaction Hydrophobic bond Disulfide bond Peptide bond Level of Protein structure: Choices: Primary Secondary Tertiary Quaternary Method/s of denaturation. CHECK ALL THAT APPLY Heating to 100 degrees Celsius Addition of nitric acid Reaching Isoelectric point Addition of mercuric chloride Addition of sulphosalicylic acid Addition of alcohol Addition of ammonium sulfatearrow_forward
- Use the following diagram to answer the question: Which of the molecules have hydrogen bonding? OH (B CHa CH,OH D HN OH R OH OH OA Oc I-arrow_forwardIdentify one type of noncovalent bond present in each solid. Table salt (NaCl) Graphite (C repeating) Answer bank: van der Waals interactions, hydrophobic interactions, hydrogen bonds, ionic interactionsarrow_forwardwrite a brief desription of hydrogen bonds.arrow_forward
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