VCU BIOL 209 - Exam 1 Study Guide (6 pages)

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Exam 1 Study Guide

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Exam 1 Study Guide


Microbes, prokaryotic and eukaryotic cell structure, viruses, and cell growth

Study Guide
Virginia Commonwealth University
Biol 209 - Medical Microbiology

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BIOL 209 1st Edition Exam 1 Study Guide Lectures 1 8 Lecture 1 August 22 What is Ebola What are the symptoms Ebola is a rare deadly virus causing bleeding in and outside the body Its symptoms include hemorrhagic fever weakness chills headache and joint and muscle aches What is a microbe Any living organism that is not visible to the naked eye viruses bacterium protists fungi archaea prions and helminths What are the positive and negative effects of microbes on humans Positive Protection against infectious disease aid in digestion production of food drugs and hormones and take part in bioremediation and detoxification In the biosphere microbes take part in nutrient cycling and energy capture Negative Food spoilage cause infectious disease What are microbes roles in the biosphere They are producers consumers and decomposers detrivores they are extremely diverse in form and function and are located everywhere Lecture 2 August 25 What types of relationships exist between species that live in the same place Mutualism both parties benefit Commensalism one party benefits and one does not but is still unharmed Parasitic one party benefits one is harmed this relationship accounts for a small of those between humans and microbes How are cells classified as belonging to bacteria archaea and eukarya domains Name a similarity and a difference between bacteria and archaea Ribosomal RNA sequences are compared to determine how different species genetics are related Unlike bacteria archaea cell walls don t contain peptidoglycan Both bacteria and archaea are similar in size and shape they are both found occurring as rods cocci spirals coiled etc Both produce asexually What are the different methods used to identify specific microorganisms Polymerase Chain Reaction PCR assay based on DNA sequences unique to a particular microbe ELISA assay uses antibodies to detect structures unique to a particular microbe Informal classification used if microbe has not developed reagents uses cell

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