
5. Some prokaryotes lack a cell wall how do they survive in the environment? (2) 6....
Cell Structure and Function: 1. What is the basic structure of the cytoplasmic membrane, and what are its three critical roles in bacteria? (5) 2. What is the role of peptidoglycan in the cell, what are the two polysaccharides which make up the backbone, and what is the advantage for a cell lacking peptidoglycan? (4) 3. What is the difference between Gram-negative and Gram-positive Bacteria in the crosslinking of peptidoglycan? (2) 4. How and why does the Gram stain differentially...
Chapter 4(microbiology) 1. What are the shapes and arrangements of bacteria cells? 2. Why is it important to be able to identify the shape and arrangement of an unknown bacterial sample? 3. Differentiate between eubacteria and archaebacteria. 4. What are the differences between eukaryotes and prokaryotes? 5. Why would a microbiologist care about those differences? Be specific. 6. What are the basic parts of a prokaryote? (the parts found in all bacteria) 7. How do the cell walls of Gram...
what are the main features of a prokaryotes? what are their chemical makeup, role/function, and how they may or may not differ between gram-positive and gram-negative bacteria or archaea Capsule (is there another term for this? An analogous structure?) Cell wall Cell Membrane Pili Flagellum Chromosome Nucleoid Endospores Ribosome inclusions
1) Without prokaryotes... a) much decomposition in the soil would stop b) PCR would be much more difficult to do c) plants would have fewer nutrients to absorb d) there would be less methane in the world e) all of the above would occur 2) Which is least likely associated with prokaryotes? a) nitrogen fixation b) botulism c) methane production d) total global photosynthesis 3) Genetic variation in bacterial populations cannot result from: a) transduction b) transformation c) conjugation d)...
1) If you were given a microscope slide with a sample from a habitat rich in bacteria and nitrogen, you would expect to see.. a) peptidoglycan b) heterocysts c) filaments d) halophiles e) biofilms 2) A research ship catches a fish from the depths of the ocean. In the dark it glows. What are the prokaryotes doing in the fish? a) decomposing it b) providing bioluminescence c) fixing nitrogen d) photosynthesizing 3) Without prokaryotes... a) much decomposition in the soil...
Which scientist / experiment provided the most compelling evidence to disproved Aristotle's theory of Spontaneous generation? 1) Pasteur's swan neck experiment 2) Lazzaro's mutton broth experiment 3) Redi's flask and meat experiment 4) Pasteur's flask and meat experiment Antibiotic resistance genes may be transferred from one bacteria to another by conjugation via.... 1) the sex pilus 2) porins 3) chemotaxis 4) gas vacuoles Which of the following is not true of Gram-positive bacteria? 1) Posess an outer membrane composed of...
55. As they flow over rotten logs as a fluid s heet, slime molds appear to lack any partitioning isto Individual cells; however, slime molds do become The surface of some parasitic n material that contains many nuclel and cell These tissues consume food and produce wastes. In light of the cell theory that "all living things are composed of cells," then a) these tissues are not living because they are not cellular b) these tissues are obviously a bridge...
what are some chemical components that can be found in the cell wall? how do these vary?
1.Pre-Lab Questions What are two ways that some prokaryotes are able to survive in extreme environments? Describe three ways that microorganisms in soil contribute to the ecosystem as a whole. Give two examples of genera that produce endospores, and explain why they are important in human health. What are coliforms? Why are they important in assuring water quality? Why is E. coli the indicator bacterium for fecal contamination? 2.Experiment 1: Bacterial Isolation from Soil Samples Post-Lab Questions Observe the two...
1. Identify the basic shapes of bacteria and formation under the microscope. 2. Describe how bacteria are identified and named under the microscope. 3. Distinguish between Gram positive and Gram negative bacteria. 4. Explain the ways bacteria reproduce themselves. 5. Describe what makes prokaryotic cells different from eukaryotic cells. 6. Identify the internal and external structure of bacteria. 7. Define plasmids and how bacteria use them 8. Describe the 2 categories of bacteria found in the Moneran kingdom. 9. Bacterial...