Mcb3020 Study guides, Class notes & Summaries

MCB3020 Exam 1 UWF (verified 2024).

MCB3020 Exam 1 UWF

MCB3020 Final Exam Questions And Answers (Verified And Updated) The Gram stain can only be performed on cultures grown in liquid media. Group starts - answerFalse Steps of Koch's Postulates - answer1. disease always present in sick but not in well individuals 2. isolate microorganism from sick 3. infection with pure microbe into healthy individuals result in disease 4. re-isolate microorganisms form infected individuals The major site of cell membrane synthesis is the _________blank. -...

A microbe is discovered living in an extreme environment near a deep sea vent. The microorganism lacks a nucleus and peptidoglycan in its cell wall, but it does have unusual membrane lipids. This species is most likely a member of the Domain - Archaea Disproves spontaneous generation - Louis Pasteur Generates the small pox vaccine - Edward Jenner Describes bacterial transformation - Fredrick Griffith

Bacterial Morphology1.COCCI 2. BACILLI 3. HELICOIDAL CocciSpherical organisms Rods (Bacilli)Cylindrical organisms HelicoidalSpiral shaped Diplococci (pairs)-divide in one plane Streptococci (chains)divide in one plane Tetracocci (tetrads)divide in two planes

What is cytoplasm? Aqueous mixture of macromolecules, various inorganic ions, and ribosomes. Types of macromolecules Proteins, lipids, nucleic acids, and polysaccharides What are ribosomes? The cell's protein-synthesizing structures How old is the Earth? 4.6 billion years old When did the microbial cells appear? Between 3.8-3.9 billion years ago During the first 2billion years the Earth's atmosphere was______. Meaning that ______ was absent. anoxi

nanometers; 200 micrometers - the size of microorganisms ranges from ___________ (viruses) to ________________ (protists) 1um = 10E-6 m - how much is a micrometer (in m) 1nm = 10E-9 m - how much is a nanometer (in m) 1A = 10E-10 m - how much is an angstrom (in m) refracted - when passing from one medium to another, light is ________________

In average Bacterium has a genome of ...... gene in a single double-stranded DNA3000 Without the nuclear membrane it allows simultaneous transcription of .... to ....DNA to mRNA What is the enzyme that uncoils the parent bacterial DNA during bacterial replicationGyrase General mechanisms of action of antibiotics include all exceptinhibition of nuclear membrane synthesis General mechanisms of action of antibiotics include ....inhibition of cell wall synstesis inhibition of protein synth...

Exam 1 DISCOVERY: 1. Swan-neck flask experiments performed by ____________ disproved the theory of ____________ in the late 19th century. A. Redi; sanitarianism B. Redi; evolution C. Woese; endosymbiosis D. Koch; miasma E. Pasteur; spontaneous generation 2. The chain of infection, proposed by Robert Koch, describes what? A. The transmission of a germ B. That germs arise from common descent C. The postulates of germ theory D. The pathogenesis of anthrax E. That germs cause disease, ...

Notes for chapter 4 of mcb3020 (microbiology) for the university of florida!!