Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Textbook Question
Chapter 3, Problem 9TYK
In living systems:
a. proteins rarely combine with other macromolecules.
b. enzymes are always proteins.
c. proteins are composed of 24 amino acids.
d. chaperonins inhibit protein movement.
e. a protein domain refers to the place in the cell where proteins are synthesized and function.
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Students have asked these similar questions
A prosthetic group of a protein is a non-protein structure that is:
a. a ligand of the protein.
b. a part of the secondary structure of the protein.
c. a substrate of the protein.
d. permanently (tightly) associated with the protein.
e. transiently bound to the protein.
Which of the following describes a purpose of the glycosylation of proteins?
A. Glycosylation tags a protein for destruction within a cell.
B. Glycosylation is a process that causes cells to import new proteins from the extracellular space.
C. Glycosylation indicates where a protein belongs within a cell.
D. Glycosylation is the process of bonding amino acids to each other to build a protein.
Proteins often have regions that show specific, coherent patterns of folding or function. These regions are called:
a. domains.
b.oligomers.
c. peptides.
d. sites.
e. subunits.
Chapter 3 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 3.1 - What is the difference between hydrocarbons and...Ch. 3.1 - What is the maximum number of bonds that a carbon...Ch. 3.1 - Do carboxyl groups, amino groups, and phosphate...Ch. 3.1 - What is the difference between a dehydration...Ch. 3.2 - What is the difference between a monosaccharide, a...Ch. 3.3 - What are the three most common lipids in living...Ch. 3.4 - Prob. 1SBCh. 3.4 - What is a peptide bond, and what type of reaction...Ch. 3.4 - Prob. 3SBCh. 3.5 - What is the monomer of a nucleic acid...
Ch. 3.5 - What are the chemical differences between DNA and...Ch. 3 - Which functional group has a double bond and forms...Ch. 3 - Which of the following characteristics is not...Ch. 3 - Cellulose is to carbohydrate as: a. amino acid is...Ch. 3 - Maltose, sucrose, and lactose differ from one...Ch. 3 - Lipids that are liquid at room temperature: a. are...Ch. 3 - Which of the following statements about steroids...Ch. 3 - The term secondary structure refers to a proteins:...Ch. 3 - The first and major effect in denaturation of...Ch. 3 - In living systems: a. proteins rarely combine with...Ch. 3 - RNA differs from DNA because: a. RNA may contain...Ch. 3 - Discuss Concepts Identify the following structures...Ch. 3 - Discuss Concepts Lipoproteins are relatively...Ch. 3 - Prob. 13TYKCh. 3 - Prob. 14TYKCh. 3 - Prob. 15TYKCh. 3 - Prob. 1ITDCh. 3 - Prob. 2ITDCh. 3 - Prob. 3ITD
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- An allosteric interaction between a ligand and a protein is one in which: a. binding of a molecule to a binding site affects binding of additional molecules to the same site. b. binding of a molecule to a binding site affects binding properties of another site on the protein. c. binding of the ligand to the protein is covalent. d. multiple molecules of the same ligand can bind to the same binding site. e. two different ligands can bind to the same binding site.arrow_forwardWhich of the following is not a function of a protein? A. Support B. Transport C. Metabolic regulation D. Storage of genetic information E. Movementarrow_forwardFor biological membranes, which of the following statement is NOT true? A. The phospholipid bilayer is a fluid matrix. B. Protein can be anchored to the membrane by covalently linked lipid chains. C. Proteins can move laterally across the membrane. D. For organisms living in cold temperature, their cell membranes contain more triacylglycerols. E. Transverse motion of lipid molecules can occur occasionally. Enzyme lowers when... A. The energy difference between the substrate and the transition state B. The energy difference between the product and the transition state C. Both A and B D. Neither A nor Barrow_forward
- Proteins serve as the “machinery” for the living cells. What type ofmolecules are used to produce Proteins (_____), and how manydifferent individual types of these molecules are used to produce ourcellular proteins (_____)?A. Amino Acids : 46B. Amino Acids : 20C. Fatty Acids : 46D. Glucose : millions and millions.arrow_forwardThe function of proteins is limited to one or two tasks. Proteins play multiple roles in living things. Match the functions of proteins to their corresponding descriptions. 1. signaling proteins 2. structural proteins 3. sensory proteins 4. regulatory proteins 5. motor proteins a. help cells move throughout the body b. turn genes on and off c. involved in cellular communication d. can detect light, heat, and sound e. proteins that help strengthen cells, tissues, and organsarrow_forwardThe three-dimensional conformation of a protein may be strongly influenced by amino acid residues that are very far apart in sequence. This relationship is in contrast to secondary structure, where the amino acid residues are: a. always side by side. b. generally near each other in sequence. c. invariably restricted to about 7 of the 20 standard amino acids. d. often on different polypeptide strands. e. usually near the polypeptide chain's amino terminus or carboxyl terminus.arrow_forward
- Which of the following is NOT a function of one or more types of protein? A. Transport B. Enzymes C. Storing genetic information D. Hormonesarrow_forwardWhich of the following is true about the phosphorylation of proteins? A. Proteins are usually phosphorylated at amino acids that have hydroxyl group-containing side chains. B. Phosphorylation of proteins is catalyzed by phosphatases. C. Phosphoryation always activates enzymes. D. The specificity in phosphorylation is conferred solely by the amino acid to be phosphorylated.arrow_forwardDNA ultimately contains the instructions for the assembly of:a. proteinsb. polysaccharidesc. triglyceridesd. nucleotidesarrow_forward
- Which of the following statements are correct about protein structure (select all that apply)? A. Post-translational modifications such as glycosylation or phosphorylation may alter the structure of a protein B. Only amino acids with a net charge may interact with other amino acids C. The 3D structure of a protein is determined primarily by the protein backbone/main chain conformation while the amino acid sidechains play only a minor role. D. Hydrophobic interactions play a key role in protein folding E. Amino acid sidechains contribute to 3D structure through their ability to form hydrogen bonds with other amino acidsarrow_forwardWhich of the following most likely has a sequence of hydrophobic amino acids that permits the protein to be embedded in membranes? Select one: a. translocator (TIM/TOM) b. none of the above c. signal peptidase d. chaperone (HSP) e. ubiquitinarrow_forwardStatements:(1) Fats and oils have the same general chemical structure.(2) Biological waxes have a three-component “block diagram.”(3) In facilitated transport, a substance crosses a cell membrane with the help of a protein “pump.” a. All three statements are true. b. Two of the three statements are true. c. Only one of the statements is true. d. None of the statements is true.arrow_forward
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Biomolecules - Protein - Amino acids; Author: Tutorials Point (India) Ltd.;https://www.youtube.com/watch?v=ySNVPDHJ0ek;License: Standard YouTube License, CC-BY