Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 3, Problem 4TY
Which of the following bonds is/are nonpolar?
- C—C
- C—O
- C—H
- both a and b
- both a and c
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A bond linking two atoms of the same
element through an equal sharing of
electrons would be best defined as a
Polar Covalent Bond
O Nonpolar lonic Bond
O Hydrogen Bond
O Nonpolar Covalent Bond
The dihedral or torsion angles of polypeptide backbone, the allowed values of which are summarized by the Ramachandran diagram, refer to rotation of the following pair of bonds.
Cα-N and Cα-R
C=O and Cα-N
C-N and Cα-C
Cα-C and Cα-N
Cα-R and Cα-C
How many hydrogen bond donor groups are found in the following molecule?
Chapter 3 Solutions
Principles of Biology
Ch. 3.1 - Carbon has an atomic number of ___________ and has...Ch. 3.1 - Prob. 2TYKCh. 3.2 - Formation of polymers from monomers typically...Ch. 3.3 - Which of the following classes of organic...Ch. 3.4 - Prob. 1CCCh. 3.4 - Prob. 1BCCh. 3.4 - Glucose, galactose, and fructose are examples of...Ch. 3.4 - _____________ is a storage polysaccharide commonly...Ch. 3.5 - When water and oil are added to a test tube, the...Ch. 3.5 - For a more detailed view of the components of cell...
Ch. 3.5 - Hydrolysis of a triglyceride yields 3 glycerols...Ch. 3.5 - Which of the following are highly amphipathic?...Ch. 3.6 - Which of the following is the primary structure of...Ch. 3.6 - A peptide bond is formed between amino groups of...Ch. 3.7 - If the sequence of bases in one strand of a DNA...Ch. 3.7 - Prob. 1TYKCh. 3.7 - Which of the following is not found in DNA?...Ch. 3 - Which of the following is a common functional...Ch. 3 - Prob. 2TYCh. 3 - Prob. 3TYCh. 3 - Which of the following bonds is/are nonpolar?...Ch. 3 - Prob. 5TYCh. 3 - Prob. 6TYCh. 3 - Prob. 7TYCh. 3 - Prob. 8TYCh. 3 - Prob. 9TYCh. 3 - Prob. 10TYCh. 3 - Imagine that a proteins primary structure could...Ch. 3 - Explain the difference between saturated and...Ch. 3 - Prob. 3CCQCh. 3 - Prob. 1CBQCh. 3 - Prob. 2CBQ
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- What kinds of bonds often control the shape (or tertiary form) of large molecules such as proteins? a. hydrogen b. ionic c. covalent d. inert e. singlearrow_forwardThe mutual attraction of opposite charges holds atoms together as molecules in an _______ bond. a. ionic c. polar covalent b. hydrogen d. nonpolar covalentarrow_forwardAn ________ can help keep the pH of a solution stable. a. covalent bond c. buffer b. hydrogen bond d. free radicalarrow_forward
- Each carbon atom can bond with as many as _________ other atoms.arrow_forwardWhich is responsible for the stabilization of parallel polypeptide chains in a beta-pleated sheet conformation? Van der Waals O covalent bonding O R-group interactions H-bondingarrow_forwardWhich statement is most TRUE regarding peptide bonds? O They are weaker than London dispersion forces. O They are flexible linkages that rotate around the sp? bond in the carbonyl carbon. O They are composed of an electronegative carbonyl group and an electropositive nitrogen atom. O They are amide linkages that connect amino acids.arrow_forward
- Which of the following explains why methyl anion has a pyramidal geometry while methyl cation is planar? The HOMO energy decreases upon pyramidalization of the anion but increases for the cation Hyperconjugation stabilizes the planar cation Selected Steric repulsion between the H atoms disfavors the pyramidal anion All of the orbitals for the pyramidal structure are lower energyarrow_forwardWhen two atoms share a pair of valence electrons with different levels of electronegativity, what type of bond is this?arrow_forwardWhich of these statements about the tertiary structure of a polypeptide is(are) untrue? You may select more than one answer. The tertiary structure will be maintained when the solvent is changed from pure water to aqueous acetic acid. O The tertiary structure is determined in part by the formation of disulfide bridges. Hydrogen bonding interactions are responsible for formation of secondary structure but not tertiary structure, O The tertiary structure is rigid and unchanging. O Charge-charge (electrostatic) interactions can be important in the tertiary structure.arrow_forward
- ge Bonds formed by equal sharing of a pair of covalent electrons are called bonds because there is a uniform charge across the molecule along all axes. Attractions between polarized molecules (intermolecular bonds and can also bonding) are called form between polarized regions of the same molecule (intramolecular bonding).arrow_forwardH :0: H- C;= C2 - C3 - C4 - N - H H H Give the approximate bond angle at each of the designated central atoms: note: Add five letters. C = C2 = C3 = C4 = N = a. 109.5° b. 120° C. 180° d. 90° е. 450arrow_forwardA concept map for four types of intermolecular forces and a certain type of bond is shown.Compare the relative strength of the two forces C and D. Explain how you determined this comparison by identifying the forces.arrow_forward
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