Mic 102 - Study guides, Class notes & Summaries

Bacteriophage E79 is a virus that attaches to the lipopolysaccharide of a specific bacterium as the first step of infection. Which organism would be susceptible to this virus: a. An acid-fast Mycobacterium leprae b. A gram-negative Pseudomonas aeruginosa c. An archaeon with a lipid monolayer in the envelope d. A gram-positive Streptococcus pneumoniae e. (b) AND (c) CORRECT ANSWER b. A gram-negative Pseudomonas aeruginosa A chemoautotroph uses a. CO2 as the carbon source b. visible ...

MIC 102 Final Exam Questions With Complete Solutions

What is not a function of a prokaryotic cell membrane? (A) Protein synthesis (B) Protein secretion (C) Respiratory electron transport (D) Osmotic barrier (E) Lipid synthesis CORRECT ANSWER (A) Protein synthesis Which of the following cell components would not be found on a gram-positive, circular shaped bacterium? (A) Murein (B) Teichoic Acids (C) S layer (D) Flagellum (E) Outer Membrane CORRECT ANSWER (E) Outer Membrane Which structure provides resistance to desiccation? ...

Light microscopy CORRECT ANSWER Limited ability to visualize bacterial components or distinguish between bacteria without doing something extra Electron microscopy CORRECT ANSWER Can view exterior and internal structures, smallest specimens Phase-contrast microscopy CORRECT ANSWER Refracts the light that goes through the specimen; can see detail, live cells Fluorescence microscopy CORRECT ANSWER Use of fluorochromes that emit light of specific wavelengths when excited by light of a diff...

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...

Mic 102 Quizzes Questions with Correct Answers What is a function of a prokaryotic cell membrane? a. Lipid synthesis b. Protein secretion c. Respiratory electron transport d. Osmotic barrier e. All of these are true - Answer-E. All of these are true Which of the following cell components would not be found on a gram-positive, circular-shaped bacterium? a. Outer membrane b. Teichoic acids c. S layer d. Flagellum e. Murein - Answer-A. Outer membrane Which structure can give mor...

MIC 102 Midterm one WQ2023 UC Davis| Questions And Answers| 19 Pages| With Complete Solutions

MIC 102 post-MT II| Questions And Answers| 22 pages| With Complete Solutions

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...

MIC 102 Middie 2 Exam Questions with Answers Building Blocks - Answer-amino acids nucleotides sugars lipids amino acids - Answer-building blocks of proteins different families of aminos can come from diff precursors can predict source of some mutations in central pathways - ex: families of amino acids cant be made and must be supplied nucleotides - Answer-building block of nucleic acids (DNA+RNA) made in activated state and READY for polymerization (they have the energy needed to...