Microbiology: Principles and Explorations
10th Edition
ISBN: 9781119390114
Author: Black
Publisher: WILEY
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Chapter 5, Problem 2.3SC
Summary Introduction
To explain: The way in which the terms “cell wall, outer membrane, lipopolysaccharide, endotoxin, lipid A, and death of cells” are related to one another.
Introduction: Prokaryotes and eukaryotes are the basic cell types of all living cells. The prokaryotes are unicellular organisms that lack membrane-bounded nucleus and organelles. The eukaryotes possess a distinct nucleus that contains the genetic material of the cell.
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Chapter 5 Solutions
Microbiology: Principles and Explorations
Ch. 5 - Are viruses prokaryotes? Eukaryotes? Why or why...Ch. 5 - Compare surface-to-volume ratios of prokaryotes...Ch. 5 - Prob. 1.3SCCh. 5 - Prokaryotes lack mitochondria. What structure does...Ch. 5 - Compare peptidoglycan and teichoic acid as to...Ch. 5 - What takes place in the periplasmic space? Which...Ch. 5 - Prob. 2.3SCCh. 5 - Compare the cell walls of Gram-positive,...Ch. 5 - How do bacteria move in chemotaxis? Distinguish...Ch. 5 - Prob. 3.2SC
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- a cellulose sack, impermeable to starch molecules, is filled with a solution of 20% starch and is placed into a container filled with a starch solution composed of 20% water. a) What term describes the solution in the sack compared to the solution surrounding it? i) hypertonic ii) hypotonic iii) isotonic b) In which direction will the water molecules move faster? i) into the cell ii) out of the cell iii) same in both iv) not at all c) In which direction will the starch molecules move faster? i) into the cell ii) out of the cell iii) same in both iv) not at allarrow_forwardYou are studying the cell walls of gram-negative bacteria. You have isolated the components of their cell walls and run a chemical analysis of what you have isolated. What component listed below would be toxic to eukaryotic cells such as human cells? the peptidoglycan NAG the protein the lignin the cellulose the lipopolysaccharidesarrow_forwardIn the exponential phase of microbial growth, Log cell numbers Time O a) net cell growth is equal to net cell death. Ob) net cell growth is greater than net cell death. c) waste accumulates, cell death is greater than cell growth. d) the cells stop growing.arrow_forward
- What protects cells from dehydration and nutrient loss, helps defend against phatocytosis, and helps with the formation of biofilms? Pili OFlagella Ribosomes Glyocalyx Nucleiod Mitochondia Fimbriaearrow_forwardMicroorganisms degrade chemicals for the following reason(s): Select one: Obtain source of usable energy To create more microorganisms Biosynthesis of cellular component All sentences are true Two sentences are truearrow_forwardWhich of the following statement/s is/are true about gram positive bacteria Cell wall has thick peptidoglycan layer Cell wall lipid content is very low Lipopolyscharride layer is absent All of the abovearrow_forward
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