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 2, Problem 21TYK
Summary Introduction
Introduction: Chemical bond is a force through which two or more atoms join together to form a molecule. Ionic bond, metallic bond, and covalent bond are the three main types of
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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)
The PH formula is given as PH=-log(H+). The H+ is the number of free ions of hydrogen. A seven PH is considered neutral. Discuss what having a low PH and a high PH means. What does a 12 PH mean? How about a 2? Which is more caustic? Is either a good thing at extremely high or low values? Explain fully as to what a PH means to you and what you use it for.
Analyze 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 sulfate
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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- Define the following terms:a. aldol condensationb. a-carbonc. hydrophobic amino acidd. secondary structuree. b-pleated sheetarrow_forwardRank the following chemical bonds in order of increasing polarity.a. nonpolar covalent b. ionic c. polar covalentarrow_forwardDefine the following terms:a. acidb. basea. weak acidd. weak basee. conjugate basearrow_forward
- Looking at the two different types of molecules (glycerol and fatty acids), describe the molecules with respect to: a. Polarity b. Acidityarrow_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_forwardMatch 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 proteinsarrow_forward
- Draw a “dot & cross” diagram to show the shape of a water molecule (H2O). Bond angles need to be shown. State the shape of a water molecule.arrow_forward90% of our body is made of water. Use a water molecule to describe the relationship among all the following polar molecules, intramolecular and intermolecular forces, hydrophilic and hydrophobic interactions.arrow_forwardDefine the following terms: a. carbonyl group b. carboxyl group c. amino group d. hydroxyl group e. peptide bondarrow_forward
- pH expresses the molar concentration of hydronium ions in an aqueous solution on a logarithmic scale. (Note that it is common to use the hydrogen ion, H*, to represent the hydronium ion, H3O+.) pH = -log[H3O+] [H3O+] = 10-PH As pH decreases, acidity increases. As pH increases, acidity decreases. • Acidic solution: pH 7 Part A - Calculating pH Submit [H₂0+] 1 Acidic pH 01 10¹ 102 103 104 105 106 107 108 109 10-10 10-11 10-12 10-13 10-14 stomach acid 3 wine lemon tomatoes juice vinegar, black soft drinks, coffee beer 6 Neutral urine milk 7 human blood pure water sea- water baking soda 10 11 12 13 14 milk of magnesia house- hold ammonia oven cleaner Basic household bleach Adapted from Biological Science by Freeman ©2008 Pearson Education, Inc. What is the pH of an aqueous solution with the hydronium ion concentration [H3O+] = 2 x 10-14 M? Make sure that your answer has the correct number of significant figures. For help determining the correct number of significant figures, see Hint 3. ►…arrow_forwardWhat is the hydrophobic effect, and what drives it: the enthalpy or entropy of the system? (explain your answer)arrow_forwardRefer to figure 2.15 to draw a picture of on NaCl molecule interacting with several water molecules. Label all molecules and ions appropriately and, as usual, use dotted lines to represent any hydrogen bonds.arrow_forward
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