Becker's World of the Cell (9th Edition)
9th Edition
ISBN: 9780321934925
Author: Jeff Hardin, Gregory Paul Bertoni
Publisher: PEARSON
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Chapter 3, Problem 3.8PS
Wrong Again. For each of the following false statements, change the statement to make it true, and explain why it is false as written:
- (a) Proteins,
nucleic acids , polysaccharides, and lipids are all very longpolymers that are synthesized by condensation of individual monomer units. - (b) The amino acid proline is not found in α helices because its R group is too large to fit into the α helix.
- (c) Whereas a protein can be denatured by high-temperature treatment, extremes of pH generally have no effect on tertiary structure.
- (d) Nucleic acids are synthesized from monomers that are activated by linking them to a carrier molecule in an energy-requiring reaction.
- (e) α-D-glucose and β-D-glucose are stereoisomers.
- (f) Fatty acids are important components of all cellular lipids.
- (g) It is easy to predict the final folded structure of a protein from its amino acid sequence using today’s powerful supercomputers.
- (h) Most cells contain only three types of RNA: mRNA, tRNA, and rRNA.
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Chapter 3 Solutions
Becker's World of the Cell (9th Edition)
Ch. 3 - What structural features of protein molecules...Ch. 3 - Prob. 3.1CCCh. 3 - Like proteins, nucleotides are important...Ch. 3 - Polysaccharides are also important macromolecules...Ch. 3 - Prob. 3.4CCCh. 3 - Polymers and Their Properties. For each of the six...Ch. 3 - Stability of Protein Structure. Several different...Ch. 3 - Prob. 3.3PSCh. 3 - Prob. 3.4PSCh. 3 - Hair Versus Silk. The a-keratin of human hair is a...
Ch. 3 - The Permanent Wave That Isnt. The permanent wave...Ch. 3 - Features of Nucleic Acids. For each of the...Ch. 3 - Wrong Again. For each of the following false...Ch. 3 - Prob. 3.9PSCh. 3 - Prob. 3.10PSCh. 3 - Telling Them Apart. For each of the following...Ch. 3 - Prob. 3.12PSCh. 3 - Prob. 3.13PSCh. 3 - QUANTITATIVE Thinking About Lipids. You should be...Ch. 3 - Shortening. A popular brand of shortening has a...
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- Figure 7 shows one additional type of bond that can stabilize the tertiary structure of a protein. This bond is called a disulfide bond (or disulfide bridge), and it involves the sulfhydryl (-SH) R groups from one particular type of amino acid. A disulfide bond can form only under certain conditions (oxidative conditions). We'll talk about oxidation and reduction next week. For now, just note that this type of bond does exist in some proteins. Answer the below questions on tertiary structure in your own document. 8. Figure 6 shows examples of bonds that might stabilize the tertiary structure of a protein (labeled A, B, and C). Do these interactions involve only the amino acid R groups, only the polypeptide backbone atoms, or both? 9. In the table below, indicate what type of bond/ interaction is represented in the examples shown in Figure 6, panels A, B, and C and whether each interaction involves group or backbone atoms. Example Type of Bonding Interaction R group or backbone? A В 10.…arrow_forwardOligopeptide 1 Oligopeptide 2 N. N- H. N-H H Give the three-letter and one-letter names of the amino acids in each oligopeptide starting from the amino terminal to the carboxyl terminal. Make sure that the amino acid names are arranged in CORRECT order for both oligopeptides.arrow_forward8. Multiple choice. Which of the following is not a method that can be used to determine the 3° structure of proteins? (2 pts) a) Protein X-ray crystallography b)) Circular dichroism c) Cryogenic electron microscopy d) Protein NMR 9. Multiple choice. Approximately what overall yield can you expect from the solid phase peptide synthesis (SPPS) of a "10-mer" (a 10 amino acid peptide), if the yield from each step is 85%? (2 pts) 23% b) 20% c) 85% d) 71% 10. Multiple choice. Which protein purification method is best for an experiment in which you want to purify a monomeric form of a protein away from a tetrameric form? (2 ptrs) (-His a) Affinity chromatography S b) High pressure liquid chromatography c) lon exchange chrommatography d) Size exclusion chromatography 2. I1. Short answer. What is the Edman degradation experiment useful for? (3 pts) purdinate an for prry structers steps .arrow_forward
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