Fundamentals of Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134396026
Author: Frederic H. Martini, Judi L. Nath, Edwin F. Bartholomew
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 22RQ
If a polypeptide contains 10 peptide bonds, how many amino acids does it contain? (a) 9, (b) 10, (c) 11, (d) 12.
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The structure of the amino acid isoleucine is(a) How many chiral centers does it have?(b) How many optical isomers?(c) Draw perspective formulas for all the optical isomers of isoleucine.
How many amino acids and peptide bonds does a tetrapeptide have?
A) four amino acids and three peptide bonds
B) four amino acids and four peptide bonds
C) three amino acids and four peptide bonds
D) four amino acids and two peptide bonds
What kind of bond would you expect between the side chains of the following amino acids?(a) Cysteine and cysteine(b) Alanine and leucine(c) Aspartic acid and asparagine(d) Serine and lysine
Chapter 2 Solutions
Fundamentals of Anatomy & Physiology (11th Edition)
Ch. 2 - Define atom.Ch. 2 - Atoms of the same element that have different...Ch. 2 - How is it possible for two samples of hydrogen to...Ch. 2 - Prob. 4CPCh. 2 - Prob. 5CPCh. 2 - Both oxygen and neon are gases at room temperature...Ch. 2 - Prob. 7CPCh. 2 - Prob. 8CPCh. 2 - Prob. 9CPCh. 2 - Prob. 10CP
Ch. 2 - What is an enzyme?Ch. 2 - Prob. 12CPCh. 2 - Prob. 13CPCh. 2 - Explain how the chemical properties of water make...Ch. 2 - Define pH, and explain how the pH scale relates to...Ch. 2 - What is the significance of pH in physiological...Ch. 2 - Define the following terms: acid, base, and salt.Ch. 2 - Prob. 18CPCh. 2 - Prob. 19CPCh. 2 - Which functional group acts as an acid?Ch. 2 - Prob. 21CPCh. 2 - Describe lipids.Ch. 2 - Prob. 23CPCh. 2 - Prob. 24CPCh. 2 - Prob. 25CPCh. 2 - Describe a nucleic acid.Ch. 2 - Prob. 27CPCh. 2 - Describe ATP.Ch. 2 - What molecule is produced by the phosphorylation...Ch. 2 - An oxygen atom has eight protons (a) Sketch in the...Ch. 2 - What is the following type of decomposition...Ch. 2 - The subatomic particle with the least mass (a)...Ch. 2 - Isotopes of an element differ from each other in...Ch. 2 - The number and arrangement of electrons in an...Ch. 2 - All organic compounds in the human body contain...Ch. 2 - A substance containing atoms of different elements...Ch. 2 - All the chemical reactions that occur in the human...Ch. 2 - Which of the following chemical equations...Ch. 2 - Prob. 10RQCh. 2 - A pH of 7.8 in the human body typifies a condition...Ch. 2 - A(n) _____ is a solute that dissociates to release...Ch. 2 - Special catalytic molecules called _____ speed up...Ch. 2 - Which of the following is not a function of a...Ch. 2 - Complementary base pairing in DNA includes the...Ch. 2 - What are the three subatomic panicles in atoms?Ch. 2 - Prob. 17RQCh. 2 - Prob. 18RQCh. 2 - List seven major functions performed by proteins.Ch. 2 - (a) What three basic components make up a...Ch. 2 - What three components are required to create the...Ch. 2 - If a polypeptide contains 10 peptide bonds, how...Ch. 2 - Prob. 23RQCh. 2 - Prob. 24RQCh. 2 - What is a salt? How does a salt differ from an...Ch. 2 - Prob. 26RQCh. 2 - In an exergonic reaction, (a) large molecules are...Ch. 2 - Prob. 28RQCh. 2 - Prob. 29RQCh. 2 - An atom of the element calcium has 20 protons and...Ch. 2 - A certain reaction pathway consists of four steps....Ch. 2 - Prob. 32RQCh. 2 - Prob. 1CCCh. 2 - Prob. 2CC
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- Which of the following characterize -helix regions of proteins? (A) They all have the same primary structure. (8) They are formed principally by hydrogen bonds between a carbonyl oxygen atom in one peptide bond and the amide hydrogen from a different peptide bond. (C) They are formed principally by hydrogen bonds between a carbonyl atom in one peptide bond and the hydrogen atoms on the side chain of another amino acid. (D) They are formed by hydrogen bonding between two adjacent amino acids in the primary sequence. (€) They require a high content of proline and glycinearrow_forwardWhich of the following characterize -helix regions of proteins? (A) They all have the same primary structure. (B) They are formed principally by hydrogen bonds between a carbonyl oxygen atom in one peptide bond and the amide hydrogen from a different peptide bond. (C) They are formed principally by hydrogen bonds between a carbonyl atom in one peptide bond and the hydrogen atoms on the side chain of another amino acid. (D) They are formed by hydrogen bonding between two adjacent amino acids in the primary sequence. (E) They require a high content of proline and glycinearrow_forwardValine is an amino acid with a nonpolar side chain and serine is one with a polar side chain. Draw the two amino acids.(a) Why is the side chain for valine nonpolar, whereas the side chain for serineis polar?(b) Which amino acid has a hydrophilic side chain and which has a hydrophobic sidechain?arrow_forward
- (a) Draw the structure of the two possible dipeptides that can be formed by combining glycine and asparagine. (b) In each dipeptide, label the N- and C-terminal amino acids. (c) Name each peptide using three-letter symbols.arrow_forwardWhat level of protein structure is determined by the following:(a) Peptide bonds between amino acids?(b) Hydrogen bonds between backbone carbonyl oxygen atoms and hydrogen atoms attached to backbone nitrogen atoms?(c) R group interactions that may involve Van der Waalsforces, ionic interactions, or hydrogen bonds?arrow_forwardBradykinin, a peptide that helps to regulate blood pressure, has the primary structure Arg-Pro-Pro-Gly-Phe-Ser-Pro-Phe-Arg.(a) Draw the complete structural formula of bradykinin.(b) Bradykinin has a very kinked secondary structure.Why?arrow_forward
- A portion of a polypeptide chain contains the following sequence of amino acids: (-Met, -Leu, -Ala, -Cys, -Asp-) a.) Which amino acid can form a disulfide bond? b.) Which amino acids are likely to make the polypeptide more soluble in water? c.) Which amino acids are likely to make the polypeptide less soluble in water? d.) How does the primary structure of a protein affect its tertiary structure?arrow_forward(a) Are all proteins polymers? What is the basie unit of protein? Explain the formation of Zwitterion in a-amino acid. (b) Count the number of peptide bonds in the below structure. -R-N-C-R-N-C-R-N-C-R-N-C- wwww H H H Harrow_forwardLamin polypeptides (nuclear lamina) form dimers in which the central α-helical regions of two polypeptide chains are wound around each other. This is called a coiled coil. a) True b) Falsearrow_forward
- (a) In what important ways do the α helix and β sheet structures differ? (b) How are they similar?arrow_forwardGlobular proteins are water-soluble, whereas fibrous proteins are insoluble in water. Indicate whether you expect the following amino acids to be on the surface of a globular protein or on the surface of a fibrous protein.(a) Ala (b) Glu(c) Leu (d) Phe(e) Ser (f) Valarrow_forwardThe difference between one amino acid and other is found inarrow_forward
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