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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Textbook Question
Chapter 4, Problem 5TYK
Which of the following is not true of an asymmetric carbon atom?
- a. It is attached to four different atoms or groups.
- b. It results in right- and left-handed versions of a molecule.
- c. Its configuration is in the shape of a tetrahedron.
- d. It is found in cis-trans isomers.
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Indicate whether each of the following stereoisomers is true or false.
a. Stereoisomers always have the same molecular formula.
b. Stereoisomers always have the same structural formula.
c. Stereoisomers are always nonsuperimposable mirror images of each other.
d. Stereoisomers always possess handedness.
Which of the following correctly describes peptide bonds? *
A. They are a special type of amide bond.
B. They are very stable bonds.
C. They form when water separates from an amino group and a carboxylic acid.
D. They are a bond that shows resonance.
E. All of these
Which group consists only of amino acids with polar side chains? *
A. serine, threonine, and leucine
B. serine, threonine, and cysteine
C. serine, threonine, and valine
D. serine, threonine, and isoleucine
Define the following terms: a. glycoside b. disaccharide c. oligosaccharide d. polysaccharide e. glycosidic linkage
Chapter 4 Solutions
Study Guide for Campbell Biology
Ch. 4 - How did Millers classic experiment relate to the...Ch. 4 - Define structural isomers, cis-trans isomers, and...Ch. 4 - Practice recognizing the functional groups by...Ch. 4 - Construct a concept map that illustrates your...Ch. 4 - Fill in the following table to review the...Ch. 4 - Carbons valence of four most directly results from...Ch. 4 - Prob. 2TYKCh. 4 - Hydrocarbons are not soluble in water because a....Ch. 4 - Prob. 4TYKCh. 4 - Which of the following is not true of an...
Ch. 4 - Enantiomers are a. molecules that are mirror...Ch. 4 - Which statement is not true about structural...Ch. 4 - Prob. 8TYKCh. 4 - The orbitals of a carbon atom form a(n) a....Ch. 4 - The following ribose molecule contains how many...Ch. 4 - Cis-trans isomers require a. highly polar...Ch. 4 - The chemical group that can cause an organic...Ch. 4 - The chemical group that confers acidic properties...Ch. 4 - Structural isomersCh. 4 - Prob. 2TYKMCh. 4 - can have enantiomersCh. 4 - carboxylic acidCh. 4 - can make cross-link in proteinCh. 4 - hydrophilicCh. 4 - hydrocarbonCh. 4 - amino acidCh. 4 - organic phosphateCh. 4 - aldehydeCh. 4 - amineCh. 4 - ketone
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- Which of the following is not true about the properties of a peptide (amide) bond? a.The bond order of the peptide bond is 2 b.The bond is in resonance which makes it (and the 6 atoms around it and included within it) planar c.Delocalization of electrons through the peptide bond contributes to a net dipole for the bond d.Peptide bonds are very, very strongly favored to be in the trans conformation, but proline is an exception because it is more isoenergetic due to its sidechain ring, and can be cis.arrow_forwardDescribe the structural similarities and differences of the following pairs. Identify which of these is a structural isomer, and how to identify structural isomers. a. Glucose and Mannose b. Galactose and Fructose c. Ribulose and Xylulose d. ribose and glucosearrow_forwardIndicate whether each of the following descriptions concerning the molecule sphingosine is true or false. a. Carbons 1, 2, and 3 all bear the same kind of functional group. b. Three different kinds of functional groups are present. c. It is an unsaturated diaminoalcohol. d. The carbon chain contains 20 carbon atoms.arrow_forward
- Which of the following is incorrect? (₁) a. A heterodimer is composed by two identical polypeptide chains b. The polypeptide chains in a multimeric protein are called subunits A homotrimer can be represented with the Greek letter alpha with a sub-index 3 d. Monomeric proteins do not have quaternary structure c.arrow_forward:0-H-1--:N-H Hydrogen Bond Which statement best helps explain the formation of the hydrogen bond represented in the figure? A The oxygen has a partial positive charge, and the nitrogen has a partial negative charge. (B) The nitrogen has a partial negative charge, and the hydrogen attached to the oxygen has a partial positive charge.arrow_forwardWhich of the following are nitrogenous bases with the general structure? a.guanine b.uracil c.adenine d.thymine e.cytosinearrow_forward
- Hemoglobin is a protein that carries oxygen in the blood. It is formed by two alpha subunits and two beta subunits. Which of the following statements about hemoglobin is INCORRECT? a. The structure of hemoglobin is stabilized by hydrogen bonding, hydrophobic packing and hydrophilic exposure. b. Hemoglobin has primary, secondary and tertiary structures, but no quaternary structure. c. Hemoglobin is a hetero-tetramer as it is formed by four subunits. d. It is an oligomer.arrow_forwardDefine the following terms: a. homologous polypeptides b. protein fold c. ligand d. oligomer e. protomerarrow_forwardWhich of the following(s) is/are TRUE? 1 pc A) purines and pyrimidines bond because they form equal number of bonds between them B) purines and pyrimidines bond because they add up to have 3 rings on the "rug" of the "ladder" C) purines are one ringers O D) pyrimidines are one ringers Both A and B are true Both A and C are true Both A and D are true Both B and C are true Both B and D are truearrow_forward
- Which of the following are nitrogenous bases with the general structure shown in the picture? a.cytosine b.uracil c.thymine d.adenine e.guaninearrow_forwardDefine the following terms: a. lipid b. cis-isomer c. trans-isomer d. fatty acid e. anandaminearrow_forwardObserve the structures of glucose and fructose in figure shown. These two molecules are H. H-C-OH Н—С—он C=0 но-с—н HO-C-H H-C-OH H-C-OH H-C-OH H-C-OH H-C-OH H-C-OH H H. glucose fructose A. geometric isotopes. B. enantiomers. C. stereoisomers. D. structural isomers.arrow_forward
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