Biochemistry
9th Edition
ISBN: 9781305961135
Author: Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal
Publisher: Cengage Learning
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Chapter 2, Problem 28RE
REFLECT AND APPLY Look at Figure 2.17. If you did this titration using TRIS instead of phosphate, how would the titration curve look compared to the figure? Explain.
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Chapter 2 Solutions
Biochemistry
Ch. 2 - REFLECT AND APPLY Why is water necessary for life?Ch. 2 - REFLECT AND APPLY Contemplate biochemistry if...Ch. 2 - RECALL What is a van der Waals force?Ch. 2 - RECALL What is an induced dipole?Ch. 2 - RECALL What is a salt bridge?Ch. 2 - RECALL Under what circumstance is a molecule that...Ch. 2 - REFLECT AND APPLY Which would you think would be a...Ch. 2 - RECALL List the three types of van der Waals...Ch. 2 - RECALL A hydrogen bond is a special case of what...Ch. 2 - REFLECT AND APPLY Why do you think that most...
Ch. 2 - RECALL What are some macromolecules that have...Ch. 2 - BIOCHEMICAL CONNECTIONS How are hydrogen bonds...Ch. 2 - REFLECT AND APPLY Rationalize the fact that...Ch. 2 - REFLECT AND APPLY Draw three examples of types of...Ch. 2 - RECALL What are the requirements for molecules to...Ch. 2 - REFLECT AND APPLY Many properties of acetic acid...Ch. 2 - REFLECT AND APPLY How many water molecules could...Ch. 2 - REFLECT AND APPLY Both RNA and DNA have negatively...Ch. 2 - RECALL Identify the conjugate acids and bases in...Ch. 2 - RECALL Identify conjugate acids and bases in the...Ch. 2 - REFLECT AND APPLY Aspirin is an acid with a pKa of...Ch. 2 - RECALL Why does the pH change by one unit if the...Ch. 2 - MATHEMATICAL Calculate the hydrogen ion...Ch. 2 - MATHEMATICAL Calculate the hydrogen ion...Ch. 2 - MATHEMATICAL Calculate the hydroxide ion...Ch. 2 - RECALL Define the following: (a) Acid dissociation...Ch. 2 - REFLECT AND APPLY Look at Figure 2.17. If you did...Ch. 2 - BIOCHEMICAL CONNECTIONS List the criteria used to...Ch. 2 - BIOCHEMICAL CONNECTIONS What is the relationship...Ch. 2 - MATHEMATICAL What is the [CH3COO]/[CH3COOH] ratio...Ch. 2 - MATHEMATICAL What is the [CH3COO]/[CH3COOH] ratio...Ch. 2 - MATHEMATICAL What is the ratio of TRIS/TRIS-H+ in...Ch. 2 - MATHEMATICAL What is the ratio of HEPES/HEPES-H+...Ch. 2 - MATHEMATICAL How would you prepare 1 L of a 0.050...Ch. 2 - MATHEMATICAL The buffer needed for Question 35 can...Ch. 2 - MATHEMATICAL Calculate the pH of a buffer solution...Ch. 2 - MATHEMATICAL Calculate the pH of a buffer solution...Ch. 2 - MATHEMATICAL Calculate the pH of a buffer solution...Ch. 2 - MATHEMATICAL A catalog in the lab has a recipe for...Ch. 2 - MATHEMATICAL If you mix equal volumes of 0.1 M HCl...Ch. 2 - MATHEMATICAL What would be the pH of the solution...Ch. 2 - MATHEMATICAL If you have 100 mL of a 0.10 M TRIS...Ch. 2 - MATHEMATICAL What would be the pH of the solution...Ch. 2 - MATHEMATICAL Show that, for a pure weak acid in...Ch. 2 - MATHEMATICAL What is the ratio of concentrations...Ch. 2 - BIOCHEMICAL CONNECTIONS You need to carry out an...Ch. 2 - Prob. 48RECh. 2 - Prob. 49RECh. 2 - BIOCHEMICAL CONNECTIONS Which of the buffers shown...Ch. 2 - Prob. 51RECh. 2 - REFLECT AND APPLY In Section 2-4, we said that at...Ch. 2 - MATHEMATICAL Define buffering capacity. How do the...Ch. 2 - BIOCHEMICAL CONNECTIONS If you wanted to make a...Ch. 2 - BIOCHEMICAL CONNECTIONS We usually say that a...Ch. 2 - RECALL What quality of zwitterions makes them...Ch. 2 - Prob. 57RECh. 2 - Prob. 58RECh. 2 - Prob. 59RECh. 2 - BIOCHEMICAL CONNECTIONS A frequently recommended...
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- REFLECT AND APPLY Comment on the energetics of protein folding in light of the information in this chapter.arrow_forwardREFLECT AND APPLY You are in the process of determining the amino acid sequence of a protein and must reconcile contradictory results. In one trial, you determine a sequence with glycine as the N-terminal amino acid and asparagine as the C-terminal amino acid. In another trial, your results indicate phenylalanine as the N-terminal amino acid and alanine as the C-terminal amino acid. How do you reconcile this apparent contradiction?arrow_forwardREFLECT AND APPLY Outline the methods you would use to pro- duce human growth hormone (a substance used in the treatment of dwarfism) in bacteria.arrow_forward
- REFLECT AND APPLY A mutation that changes an alanine residue in a protein to an isoleucine leads to a loss of activity. Activity is regained when a further mutation at the same site changes the isoleucine to a glycine. Why?arrow_forwardREFLECT AND APPLY The enzyme D-amino acid oxidase has a very high turnover number because the D-amino acids are potentially toxic. The KM for the enzyme is in the range of 1 to 2 mM for the aromatic amino acids and in the range of 15 to 20 mM for such amino acids as serine, alanine, and the acidic amino acids. Which of these amino acids are the preferred substrates for the enzyme?arrow_forwardREFLECT AND APPLY The amino acid hydroxyproline is found in collagen. There is no codon for hydroxyproline. Explain the occurrence of this amino acid in a common protein.arrow_forward
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- REFLECT AND APPLY E. coli incorporates deoxyribonucleotides into DNA at a rate of 250 to 1000 bases per second. Using the higher value, translate this into typing speed in words per minute. (Assume five characters per word, using the typing analogy from Question 36.)arrow_forwardREFLECT AND APPLY Immature rats are fed all the essential amino acids but one. Six hours later they are fed the missing amino acid. The rats fail to grow. Explain this observation.arrow_forwardREFLECT AND APPLY Suggest an explanation for the observation that when proteins are chemically modified so that specific side chains have a different chemical nature, these proteins cannot be denatured reversibly.arrow_forward
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