Molecular Cell Biology,

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

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...

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...

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...

1. Imagine that you have added the ER retention (KDEL) signal to the C-terminus of a cytoplasmic protein. If the gene was expressed in a cell, predict the final location in which your protein will localize. a. Mitochondria b. ER c. Cytoplasm d. Nucleus: Cytoplasm 2. 2. Which of the following protein is responsible for the ATP dependent uncoating of the clathrin from the nascent vesicle? a. Adaptin b. Hsc 70 c. Rab d. t-SNARE: Hsc 70 3. 3. Coat proteins such as Clathrin would dissociate...

which of the following would NOT be found in a DNA sequence a) adenine b)guanine c)thymine d) uracil - CORRECT ANSWER-D A segment of pre-mRNA is cut up by spliceosomes so that 3 eons & 2 introns are formed. How many cuts were made on the pre-mRNA? a) 3 b) 4 c) 5 d) 6 - CORRECT ANSWER-B if a DNA strand contains the triplet nucleotides ATG-GCC-GCT, what would be the set of anti-codons that accompany the transcribed mRNA during translation? a) TAG-CGG-CGA b) AUG-GCC-GCT c) AT...