Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 3.5, Problem 3CC
WHAT IF? Where would you expect a polypeptide region rich in the amino acids valine, leucine, and isoleucine to be located in a folded polypeptide? Explain
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Using Fig. as a guide, draw the complete structure of a nucleoside triphosphate before and after it becomes incorporated into a polynucleotide chain. Draw the structure that would result if the newly formed phosphodiester bond were hydrolyzed.
Consider the following peptide to answer the questions below:
A M A K K E S H I F T A I D E
What is the total charge of this peptide at pH = 5?
What is the N terminal amino acid (full name)? C terminal amino acid?
How many fragments would result if this peptide underwent proteolytic cleavage with V-8 protease and what are these fragments (list them)?
Would this peptide be a candidate to form an alpha helix? Why or why not
What following statement is TRUE concerning motifs and domains?
a) Both motifs and domains are independently stable.
b) Domains undergo dynamic individual changes that affect the entire protein
c) B-a-ß loops, B barrels, and helix-turn-helix structure are types of domains
d) Motifs and domains are part of secondary structural elements
e) Ab initio computations predict motif folds accurately a majority of the time
My guess is B.
Chapter 3 Solutions
Campbell Biology in Focus (2nd Edition)
Ch. 3.1 - How are gasoline and fat chemically similar?Ch. 3.1 - Which molecules in Figure 3.4a re isomers? For...Ch. 3.1 - Prob. 3CCCh. 3.1 - Prob. 4CCCh. 3.2 - How many molecules of water are needed to...Ch. 3.2 - WHAT IF? Suppose you eat a serving of fish. What...Ch. 3.3 - Write the formula for a monosaccharide that has...Ch. 3.3 - A dehydration reaction joins two glucose molecules...Ch. 3.3 - WHAT IF? After a cow is given antibiotics to treat...Ch. 3.4 - Compare the structure of a fat (triglyceride) with...
Ch. 3.4 - Why are human sex hormones considered lipids?Ch. 3.4 - Prob. 3CCCh. 3.5 - Why does a denatured protein no longer function...Ch. 3.5 - What parts of a polypeptide participate in the...Ch. 3.5 - WHAT IF? Where would you expect a polypeptide...Ch. 3.6 - DRAW IT Go to Figure 3.27a and, for the top three...Ch. 3.6 - Prob. 2CCCh. 3.7 - How would sequencing the entire genome of an...Ch. 3.7 - Given the function of DNA, why would you expect...Ch. 3 - Prob. 1TYUCh. 3 - Which functional group is not present in this...Ch. 3 - MAKE CONNECTIONS Which chemical group is most...Ch. 3 - Prob. 4TYUCh. 3 - Which of the following statements concerning...Ch. 3 - The structural level of a protein least a fleeted...Ch. 3 - Enzymes that break down DNA catalyze the...Ch. 3 - Prob. 8TYUCh. 3 - The molecular formula for glucose is C6H12O6. What...Ch. 3 - Construct a table that organizes the following...Ch. 3 - Prob. 11TYUCh. 3 - Prob. 12TYUCh. 3 - FOCUS ON ORGANIZATION Proteins, which have diverse...Ch. 3 - Prob. 14TYUCh. 3 - SYNTHESIZE YOUR KNOWLEDGE Given that the function...
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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
- What is a helix-turn-helix motif? secondary structure in which an α helix is separated from a β sheet by a loop supersecondary structure in which an α helix is separated from another α helix by a turn supersecondary structure in which a β sheet is separated from a helix by a turn secondary structure in which two right-handed α helices are intertwined secondary structure in which two left-handed α helices are intertwinedarrow_forwardCan you help find the charge for the c terminal?arrow_forwardConsider a protein in which a negatively charged glutamic acid side chain (pKa=4.2)(pKa=4.2) makes a salt bridge (ion-ion interaction) with a positively charged histidine side chain (pKa=6.5)(pKa=6.5). Do only part B.arrow_forward
- Regarding the last answer choice, how come both alpha helices and beta sheets aren't denatured when the heat breaks peptide bonds? If heat were to break peptide bonds, wouldn't that affect the primary structure which inevitably affects the more complicated structures?arrow_forwardConsider the following in light of the concept of levels of structure (primary, secondary, tertiary, quaternary) as defined for proteins. (a) What level is shown by doublestranded DNA? (b) What level is shown by tRNA? (c) What level is shown by mRNA?arrow_forwardCan you please help find what the n terminal is?arrow_forward
- Consider the following in light of the concept of levels of structure (primary, secondary, tertiary, quaternary)as defined for proteins.(a) What level is shown by double-stranded DNA?(b) What level is shown by tRNA?(c) What level is shown by mRNA?arrow_forwardPlease answer the two problems in the image and explain. Thank you.arrow_forward. Assume that some protein molecule, in its folded native state, has one favored conformation. But, when it is denatured, it becomes a "random coil," with many possible conformations. (a) What must be the sign of AS for the change: native → denatured? (b) How will the contribution of AS for native → denatured affect the favorability of the process? What apparent requirement does this impose on AH if proteins are to be stable structures?arrow_forward
- The following are sequences from three different alpha helices found inhuman proteins: hBak(72-87): GQVGRQLAIIGDDINR hCB1(196-210): VTASFTASVGSLFLT hCB2(248-262): LVLAVLLICWFPVL Classify each of these three helices as either a) mostly hydrophobic, b)mostly hydrophilic, or c) amphipathic. Use the helical wheel to explainyour answers. Given the character of these helices, in which part of the protein wouldyou expect them to reside?arrow_forwardthe question is in the image, thannk you!arrow_forward(a) How many activation cycles are needed for a protein with 150 amino acids? (b) How many initiation cycles are needed for a protein with 150 amino acids? (c) How many elongation cycles are needed for a protein with 150 amino acids? (d) How many termination cycles are needed for a protein with 150 amino acids?arrow_forward
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