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MIC 102 2023 Exam Questions with Correct Answers
MIC 102 2023 Exam Questions with Correct Answers transmission electron microscope (TEM) preparing specimens - Answer-transmission electron microscope (TEM) preparing specimens Microorganisms - Answer-organisms that are too small to be seen clearly with the unaided eye Multicellular microorganisms - Answer-microbes that are visible without microscopes which are consists of small aggregations of cells example bread molds and filamentous photosynthetic microbes Cellular microbes - Answer-...
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MIC 102 Final Test Questions with Correct Answers
MIC 102 Final Test Questions with Correct Answers How would you describe a bacterium that has many flagella originating at a single pole of the cell? A. axial filament B. lophotrichous c. monotrichous d. pertrichous e. perpendicular filament - Answer-B. lophotrichous Some "microbial" species like Epulopiscium fishelsoni can grow large enough to be seen by the naked eye. What does a cell typically have to do to be able to handle the most critical problem of growing to such a large...
statmaster
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MIC 102 Exam Questions with Correct Answers
MIC 102 Exam Questions with Correct Answers What are the three main subgroups of Eukaryotes? - Answer-Algae, Protozoa, Fungi What subgroup does Algae and Protozoa make? - Answer-Protists DESCRIBE THE ROLE OF A PLASMA MEMBRANE AND A CELL WALL. - AnswerWhat's the difference between Basic & Differential Stain? - Answer-Basic Stain: Allows you to determine the basic structure of a bacteria (rod, etc) Differential Stain: Uses more than one stain --> most popular: the gram stain. Why wou...
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MIC 102 2023 Exam Questions with Correct Answers
MIC 102 2023 Exam Questions with Correct Answers transmission electron microscope (TEM) preparing specimens - Answer-transmission electron microscope (TEM) preparing specimens Microorganisms - Answer-organisms that are too small to be seen clearly with the unaided eye Multicellular microorganisms - Answer-microbes that are visible without microscopes which are consists of small aggregations of cells example bread molds and filamentous photosynthetic microbes Cellular microbes - Answe...
statmaster
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MIC 102 Final Exam Questions with Correct Answers
MIC 102 Final Exam Questions with Correct Answers What are the different types of microscopy and staining and when are they used? - Answer-Types of microscopy include: light microscopy- used primarily to get an idea of the form of the bacteria, used in combination with staining to get an idea of Gram positive and Gram negative protein. Green fluorescent is used to observe cell occurrences like binary fission and movement of proteins. Electron microscopy is very detailed at getting an i...
statmaster
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MIC 102 Unit 6-1 Exam Questions and Answers All Correct
MIC 102 Unit 6-1 Exam Questions and Answers All Correct Which two of the following are surface barriers that microorganisms must overcome to establish an infection? - Answer-skin mucous membranes Immunology is the study of _____. - Answer-immune responses to foreign substances and microbes The gastrointestinal, genitourinary, and respiratory tracts are internal structures connected with the environment, and are lined with _____. - Answer-mucous membranes The outermost layer of human...
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MIC 102 Exam 1 Questions with Correct Answers
MIC 102 Exam 1 Questions with Correct Answers Which type of cell is most susceptible to osmotic lysis in an environment with a very low concentration of solutes (hypotonic)? - Answer-Mycoplasma Which of the following cellular structures self-assemble (purified monomers can assemble into the structure without added factors or the input of energy)? - AnswerFlagellar filament Phospholipid bilayer S layer mycoplasma - Answer-only prokaryotic group listed that do not have a cell wall to res...
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MIC 102 UC Davis Exam Questions with Correct Answers
MIC 102 UC Davis Exam Questions with Correct Answers What is a microbe? - Answer-"free-living organisms so small that they are only visible under the microscope" Are their exceptions to the definition to microbes? - Answer-Yes, some microbes are hug, not free-living, or organisms What is LUCA? And how does it relate to microbes? - Answer-Last Universal Common Ancestor is thought to be what all organisms have evolved from over 4 billion years. Specifically though, the LUCA is thought...
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MIC 102unit 5-2 Exam Questions with Correct Answers
MIC 102unit 5-2 Exam Questions with Correct Answers The stable association of one organism with another is called - Answer-Blank 1: symbiosis or symbiotic Historically, the smaller organism in a symbiotic relationship was termed the symbiont and the larger organism the host. Currently, these two organisms are now regarded as _____. - Answer-partners A symbiotic relationship in which each partner receives some benefit, but each partner can also live independently is called _____. - Ans...
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MIC 102 Tests Bundle Set
MIC 102 Tests Bundle Set
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MIC 102 Midterm one WQ2019 UC Davis questions with correct answers
The length of a bacterium such as Escherichia coli is approximately a. 1 µm = 0.001 mm b. 10 µm = 0.01 mm c. 100 µm = 0.1 mm CORRECT ANSWER a. 1 µm = 0.001 mm Lactobacillus spp. are classified in phylum a. Actinobacteria b. Firmicutes c. Proteobacteria CORRECT ANSWER b. Firmicutes According to the endosymbiotic theory a. chloroplasts evolved from members of phylum Cyanobacteria b. mitochondria evolved from members of phylum Euryarchaeota c. endoplasmic reticulum evolved ...
cracker
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Study Guide MIC 102 questions with correct answers
SG Q1: What features would LUCA be likely to have? Why? CORRECT ANSWER LUCA will have features common to both bacteria and archaea -Genetic code -ATP utilization -Ribosome mediated protein synthesis -Cell membrane How did eukaryotes emerge? CORRECT ANSWER It is proposed that eukaryotes emerged from the engulfment of a bacterium by an archaean (this lead to the creation of the mitochondria and chloroplast - the chloroplast from swallowing a photosynthetic bacterium). It is thought that the...
cracker
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MIC 102 Unit 3 questions with correct answers
Gene expressino regulated CORRECT ANSWER - transcriptional level - regulated by controlling mRNA synthesis - translational level - governed by controlling protein synthesis Activity level of proteins may be altered by CORRECT ANSWER post translational modification The term used to describe the metabolic pathway that uses DNA as a template for the manufacture mRNA is _____, and the pathway that uses mRNA as the template for the manufacture of protein is called _____. CORRECT ANSWER tr...
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MIC 102 MT2 questions with correct answers
Entry in from gram negative OM CORRECT ANSWER 1. Diffusion - not selective via porins 2. Facilitated diffusion - more specific porins 3. Energy coupled transport- use ATP to actively transport porin across. Entry into the cell CORRECT ANSWER 1. Simple diffusion - not very hepful 2. Facilitated diffusion - selective channels 3. Concentration gradient - no E input 4. Ion coupled - transport coupled to ionic gradient. E used to set up gradient. Transport bi directional. 5. ABC - binding p...
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MIC 102 UC Davis questions with correct answers
Last Universal Common Ancestor (LUCA) CORRECT ANSWER Was a microbe of unknown type that lived about 4 billion years ago; the origin of all organisms. What is 16s small unit rRNA used for? CORRECT ANSWER It's used to study construct phylogenetic trees of organisms because it's highly conserved and hasn't changed much over time. Antonie von Leeuwenhoek CORRECT ANSWER Father of microscopy in 1620 Increased surface area like folded membranes CORRECT ANSWER How do larger cells maximize di...
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MIC 102 FINAL questions with correct answers
How would you describe a bacterium that has many flagella originating at a single pole of the cell? A. axial filament B. lophotrichous c. monotrichous d. pertrichous e. perpendicular filament CORRECT ANSWER B. lophotrichous Some "microbial" species like Epulopiscium fishelsoni can grow large enough to be seen by the naked eye. What does a cell typically have to do to be able to handle the most critical problem of growing to such a large size? a. creates a series of internal gas vesicl...
cracker
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MIC 102 MT2 questions with correct answers
Explain how auxotrophic mutants can be isolated and how they inform us about metabolic pathways CORRECT ANSWER - screen for mutations in prototrophs (an organism capable of synthesizing all its metabolites from inorganic material) that cause them to become auxotrophic for a certain metabolite - map the mutation to a particular enzyme, then match enzyme to metabolic pathway - accumulations of the intermediate made before the blocked pathway help us piece together the biosynthetic pathways p...
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mic 102 final exam questions with correct answers
antibiotic- old and new definition CORRECT ANSWER - originally referred to any compound produced by one species of microbe that could kill or inhibit the growth of other microbes. -today the term is also used for synthetic chemotherapeutic agents that are clinically useful but chemically synthesized. Selective toxicity CORRECT ANSWER -a quality of an antibiotic - Antibiotic must selectively kill or inhibit the pathogen but not the host, How is selective toxicity possible? CORRECT ANSWE...
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MIC 102 MT 2 questions with correct answers
Structure of DNA CORRECT ANSWER 5'-->3' Anti-parallel 1 ring=pyrimidine 2 ring=purine A(2) + T(1) 2 H-bonds G(2)+C(1) 3 H-bonds *G and C have 3* DNA Replication CORRECT ANSWER Semi-conservative DNA Pol replicates 1000nt/second *errors only 1/10billion bp Why does the origin (oriC) have runs of A:T base pairs? CORRECT ANSWER Easy to break apart, only 2 H-bonds
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MIC 102 MIDTERM 1 questions with correct answers
Gram Negative Bacteria CORRECT ANSWER - inner membrane - lipoproteins on both sides of cell wall - thin cell wall= peptidoglycan - outer membrane - lipopolysaccharides (LPS)= located in the outer membrane - S-layer - Capsule Gram Positive Bacteria CORRECT ANSWER - inner membrane - thick cell wall= composed of lipoteichoic acid and peptidoglycan -Teichoic acid wall - S-layer - Capsule Lipopolysaccharide CORRECT ANSWER - found only in Gram negative - on the surface of the outer...
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