All of the following are characteristics of the bacterial flagellum except: Select one: a. It has a hook-like insertion to a basal body in the cell wall. b. It is composed of protein c. It is used in conjugation d. Counterclockwise rotation moves bacteria forward All the following are characteristics of prokaryotes except: Select one: a. Prokaryotes have cell wall b. Prokaryotes have ribosomes c . Prokaryotes have organelles d. Prokaryotes lack a nucleus e. Prokaryotes have genes

All of the following are characteristics of the bacterial flagellum except: Select one: a. It has a hook-like insertion to a basal body in the cell wall. b. It is composed of protein c. It is used in conjugation d. Counterclockwise rotation moves bacteria forward All the following are characteristics of prokaryotes except: Select one: a. Prokaryotes have cell wall b. Prokaryotes have ribosomes c . Prokaryotes have organelles d. Prokaryotes lack a nucleus e. Prokaryotes have genes

Comprehensive Medical Assisting: Administrative and Clinical Competencies (MindTap Course List)

6th Edition

ISBN:9781305964792

Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy Correa

Publisher:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy Correa

Chapter42: Basic Microbiology

Section: Chapter Questions

Problem 1CR

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Which of the following is NOT a true statement about bacterial structure and function? A. Bacteria can have membrane-enclosed organelles such as mitochondria or chloroplasts B. Bacteria have a single circular chromosome made of double-stranded DNA C. Bacterial cell walls are made of a substance called peptidoglycan D. Bacterial flagella rotate to propel the cell E. Some bacteria have a capsule surrounding the cell, made of a sticky polysaccharide or protein
Compare and contrast the structure and function of the following among bacteria and eukaryotes: a. ribosome b. flagellum c. glycocalyx
Which of the following is NOT true about bacterial endospores? A. They are produced by bacteria of the genus Bacillus and Clostridium B. They are “resting cells” for survival during adverse environmental conditions C. Resistant to desiccation (drying), heat, and chemicals D. Formed by walling off one end of the bacterial cell and surrounding it with a thick spore coat E. They represent a type of reproduction because their formation results in an increase in the number of bacterial cells
Which of the following statement about the bacterial cell wall is INCORRECT? a. The cell wall is relatively nonpermeable and restricts the passage of sugars and amino acids. b. Gram-positive cells have more peptidoglycan in theircell walls than Gram-negative cells. c. Gram-negative cells have a membrane both inside andoutside their cell walls. d. The cell wall establishes a bacterium’s shape as a coccus,bacillus, or spirillum.
Which of the following is not found in all bacterial cells?a. cell membrane c. ribosomesb. a nucleoid d. actin cytoskeleton
Which of the following is NOT a characteristic for bacteria in general? a. Plasma membrane has no saccharide units b. Sterols is one of its major outer membrane component c. Genome present in the nucleiod region of the cytosol d. Granules are mostly polysaccharide in nature
Compare the following features of bacteria to those of eukaryotic microorganisms: a. size. b. organization of genetic material. c. ribosomes. d. cell wall. e. respiration and photosynthesis. f. motility mechanisms.
Which of the following cellular components are important players in maintaining the shape of bacterial cells: a. actin b. MreB c. tubular d. S-layer e. magnetite
A bacterium has the following characteristics:∙ It adheres to the human intestinal lining using a feature that protects it from phagocytes, bacteriophages, and dehydration∙ It can survive being boiled∙ It contains no plasmids and relatively little peptidoglycanWhich of the following statements best describe the cell wall of this bacterium? Group of answer choices A. Its innermost layer is composed of a phospholipid bilayer. B. After it has been subjected to Gram staining, the cell should remain purple. C. It has an outer membrane of lipopolysaccharide. D. It is mostly composed of a complex, cross-linked polysaccharide.
1. Which of the following are examples of eukaryotic organisms? (Select all that apply) Flowers Bacteria Humans Archaea Mushrooms 2. Clathrin is used by cells to a) Help form endocytic vesicles b)Bind a vesicle to the cell’s plasma membrane c)Increase the elasticity of lipid membranes d)Bind to substrates for endocytosis e)Decrease osmotic pressure from solutes 3. A phagosome is a)A membrane compartment used to store water and ions b)An organelle used to degrade molecules c)An endocytic vesicle formed by phagocytosis d)A membrane pit located on the surface of the cell e)An organelle used for the detoxification of organic molecules 4. The process of bringing dissolved substances into the cell is a)Transcytosis b)Receptor-mediated endocytosis c)Exocytosis e)Pinocytosis f)Phagocytosis
Members of the mycoplasma genus of bacteria do not have a cell wall for protection, existing with only a simple cell membrane made up of fatty acids and phospholipids. They cannot however, synthesize their own fatty acids. How is this possible? A. They use host materials B. They use peptidoglycan from other bacteria C. They use anabolism as a way to create their outer membrane D. They use amino acids to build their membranes
Indicate whether the following structures occur in Bacteria, Eukarya or both. Also indicate one function for the structure. 1 ) Ribosomes2) Nucleus3) Cell wall4) Flagella5) Fimbriae