Biology Today and Tomorrow without Physiology (MindTap Course List)
5th Edition
ISBN: 9781305117396
Author: Cecie Starr, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 2, Problem 11SQ
Summary Introduction
Concept Introduction: Proteins are biological molecules made of basic structural units, the amino acids. There are 20 different amino acids that form several combinations of several lengths with peptide bond between two amino acids. These amino acids undergo folding to form the proteins. Proteins are present in the cell as hormones, receptors, ligands, enzymes, and many more.
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Students have asked these similar questions
Which of the following statements about proteins is FALSE?
a
They can be hydrophobic, hydrophilic, or both.
b
They are composed of amino acids.
c
Their primary function is energy storage.
d
They have multiple levels of structural organization.
Biological activity of proteins is dependent on which?
A. peptide bonds
B. thermodynamic properties
C. an aqueous environment
D. protein conformation
The bonds that are important inthe secondary structure of a protein are
a)hydrogen bonds
b.peptide bonds
c.hydrophobic interaction
d.salt bridges
e.disulfide bonds
Chapter 2 Solutions
Biology Today and Tomorrow without Physiology (MindTap Course List)
Ch. 2 - A. The first shell corresponds to the first energy...Ch. 2 - B. A chlorine atom (Cl) becomes a negatively...Ch. 2 - Figure 2.12 A pH scale. Here, red dots signify...Ch. 2 - Figure 2.17 Fatty acids. Double bonds in the tails...Ch. 2 - Effects of Dietary Fats on Lipoprotein Levels...Ch. 2 - Effects of Dietary Fats on Lipoprotein Levels...Ch. 2 - Effects of Dietary Fats on Lipoprotein Levels...Ch. 2 - Prob. 1SQCh. 2 - Which element has only one proton?Ch. 2 - The mutual attraction of opposite charges holds...
Ch. 2 - A salt does not release __________ in water. a....Ch. 2 - A(n) _______ substance repels water. a. acidic b....Ch. 2 - When dissolved in water, a(n) _____ donates H+ and...Ch. 2 - _________ is a monosaccharide. a. Glucose b....Ch. 2 - Unlike saturated fatty acids, the tails of...Ch. 2 - Which of the following is a class of molecules...Ch. 2 - Prob. 10SQCh. 2 - Prob. 11SQCh. 2 - Prob. 12SQCh. 2 - Prob. 13SQCh. 2 - Match the molecules with the best description.Ch. 2 - Match each molecule with its component(s).Ch. 2 - Alchemists were the forerunners of modern-day...Ch. 2 - Prob. 2CTCh. 2 - Polonium is a rare element with 33 radioisotopes....Ch. 2 - In the following list, identify the carbohydrate,...
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- The monomers that make up proteins are called_____. a. nucleotides b. disaccharides c. amino acids d. chaperonesarrow_forwardthe primary structure of proteins is held together by a. covalent bonds b. hydrogen bonds c. disulfide bonds d. ionic bondsarrow_forwardA denatured protein has lost its _______ .a. hydrogen bondsb. shapec. functiond. all of the abovearrow_forward
- In order for proteins to function properly the neccessary amino acids must have a specific what? A. Sequence B. Bond C. Number D. Compoundarrow_forwardThe carbon-to-nitrogen bond that joins amino acids together is called a.a glycosidic bond. b.a peptide bond. c.a hydrogen bond. d.a double bond.arrow_forwardDNA and RNA are polymers consisting of monomers called a) amino acids b) disaccharides c) lipids d) nucleotides e) polysaccharidesarrow_forward
- Which of the following is NOT a function of proteins? A. movement of muscles B. provide structural components stores the genetic information of a living organism C. catalyze reactions in the cells D. transport substances through the bloodstreamarrow_forwardout of proteins, lipids and carbohydrates present in a cell membrane, what is true? A. Lipids are maximum B. Carbohydrates are minimum C. Carbohydrates are maximum D. All three are in equal proportionarrow_forwardWhich part of the amino acid varies between different types of amino acids? A. The amino group B. The carboxyl group C. The side chain D. All of the abovearrow_forward
- Denaturation of a protein A. adds hydrogen bonds to the primary level of protein structure. B. breaks hydrogen bonds in the primary level of protein structure. C. adds hydrogen bonds to the secondary and tertiary levels of protein structure. D. breaks hydrogen bonds in the secondary and tertiary levels of protein structure.arrow_forwardCellulose is a carbohydrate B. protein C. a monosaccharide D. a nucleic acid both A. and C.arrow_forwardWhich of the following statement(s) correctly describe(s) fibrous proteins? A Insoluble B Irregular amino acid sequence C Not so sensitive to changes in pH & heat D Shape is long and narrowarrow_forward
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