Molecular Cell Biology,

The process of DNA replication requires that each of the parental DNA strands be used as a ____________ to produce a duplicate of the opposing strand. (a) catalyst (b) competitor (c) template (d) copy - CORRECT ANSWER-(c) template DNA replication is considered semiconservative because __________________________________. (a) after many rounds of DNA replication, the original DNA double helix is still intact. (b) each daughter DNA molecule consists of two new strands copied form the...

Humans and mice differ because - CORRECT ANSWER-their cells have some differences in the sequence of nucleotides in their nucleic acids. Molecules with which functional groups may form polymers via dehydration reactions? - CORRECT ANSWER-either hydroxyl or carboxyl groups Which of these molecules is not formed by dehydration reactions? - CORRECT ANSWER-fatty acids In animal metabolism, most of the monomers released by digestion of food macromolecules are metabolized to provide energy. O...

Test Bank for Molecular Cell Biology, Harvey Lodish, Berk, Kaiser et al., 9th Edition. All 25 Chapters. 249 Pages

True or false: Generally, the total number of nonpolar amino acids has a greater affect on protein structure than the exact order of amino acids in a polypeptide chain. - CORRECT ANSWER-False. The order in which amino acids are linked is unique for each protein and is the most important factor in determining the overall protein factor. True or False: The "polypeptide backbone" refers to all atoms in a polypeptide chain, except for those that form the peptide bonds. - CORRECT ANSWER-False...

20-1 Both multicellular plants and animals have _____________________. (a) cells capable of locomotion. (b) cells with cell walls. (c) a cytoskeleton composed of actin filaments, microtubules, and intermediate filaments. (d) tissues composed of multiple different cell types. - CORRECT ANSWER-D 20-3 Which of the following statements about plant cell walls is true? (a) The microtubule cytoskeleton directs the orientation in which cellulose is deposited in the cell wall. (b) The molecular ...

11-1 Which of the following phenomena will be observed if a cell's membrane is pierced? (a) the membrane reseals (b) the membrane collapses (c) a tear is formed (d) the membrane expands - CORRECT ANSWER-A 11-2 The plasma membrane serves many functions, many of which depend on the presence of specialized membrane proteins. Which of the following roles of the plasma membrane could still occur if the bilayer were lacking these proteins? (a) intercellular communication (b) selective permea...

Chapter 6 A Tour of the Cell This chapter introduces the topics of microscopy and cell fractionation, followed by a review of the cell and the major organelles and structures of eukaryotic cells. A challenge with this chapter is to keep this data from simply being a list of parts. In addition to the structure and function of individual organelles, questions probe student understanding of the cell as a dynamic, interconnected system: the flow of membrane and proteins in the endomembrane system...

18-1 The four phases of the cell cycle, in order, are G1, __________________, __________________, and __________________. A cell contains the most DNA after __________________ phase of the cell cycle. A cell is smallest in size after __________________ phase of the cell cycle. Growth occurs in __________________, __________________, and __________________ phases of the cell cycle. A cell does not enter mitosis until it has completed __________________ synthesis. DNA M protein G1 nu...

what is the correct order of a normal cell cycle A. M phase B. S PHASE C. G1 phase D. G2 phase - CORRECT ANSWER-C. G1 phase B. S PHASE D. G2 phase A. M phase Which statement best describes the cellular function of metabolic absorption? a. Cells can produce proteins. b. Cells can secrete digestive enzymes. c. Cells can take in and use nutrients. d. Cells can synthesize fats. - CORRECT ANSWER-ANS: C In metabolic absorption, all cells take in and use nutrients and other substanc...