click below
click below
Normal Size Small Size show me how
Med Micro
| Question | Answer |
|---|---|
| 99 percent of cell weight is made up of six different elements These include all but which of the following | Lithium |
| This biomolecule is especially important for its role in the structure of cell membranes and vesicles | Phospholipids |
| Proteins are made up of many different amino acids joined by what type of bond | peptide bond |
| This type of protein complexes with reactants to make biochemical reactions more energetically favorable | Enzyme |
| This is the term for all the chemical reactions in a cell | metabolism |
| This is the time between the same points of the life cycle between two successive generations | Generation/ Doubling Time |
| Within the typical growth curve this phase is the point at which exponential growth occurs before plateauing off | Log Phase |
| Highly reactive molecules that contain oxygen are normal byproducts of metabolism and cause damage over time are | Reactive Oxygen Species |
| The __ region of a gene is the beginning of the gene where RNA polymerase binds to initiate transcription | Promotor |
| Prokaryotes typically have __ origins of replication when duplicating DNA | one |
| This type of Operon is usually expressed until a repressing transcription factor binds to shut off the gene | Repressible operson |
| A ___ is any change in the DNA sequence which may be harmful beneficial or neutral | mutation |
| Is responsible for adding new nucleotides to a growing DNA strand during Replication | DNA Polymerase |
| Repairs gaps in the new DNA strand especially on the lagging strand | DNA Ligase |
| Unzips the DNA prior to replication | DNA Helicase |
| Is responsible for building the mRNA strand from the DNA template strand during Transcription | RNA Polymerase |
| Converts hydrogen peroxide to H2O and O2 Its presence is also used for microbe identification | Catalase |
| This process joins pyruvate to coenzyme A while producing one NADH and CO2 | Transition Reaction |
| When there is not enough oxygen organisms can use this process to recycle NAD+ from NADH so that glycolysis can continue | Fermentation |
| In this process the energetic molecules/ carriers produced in the other reactions are converted to ATP through the movement of ions across a membrane and the enzyme ATP synthase | Electron Transport Chain |
| Initial step of metabolism (that we talked about) breaks glucose into two pyruvate molecules generating ATP and NADH while utilizing ATP | Glycolysis |
| This step produces a large amount of NADH and FADH2 for use by the electron transport chain. | Citric Acid Cycle (Krebs) |
| This level of microbial control reduces and / or destroys microbial load to safe public health levels | Sanitization |
| The ebola virus frequently fatal and exotic is considered an | bsl level 4 organism |
| __ discovered the first antibiotic in 1928 | Alexander Fleming |
| An antibiotics ____ is the concentration of the drug that is both safe and effective for the patient. | Therapeutic window |
| These antibiotics affect many different species of bacteria | broad spectrum |
| The specific way an antibiotic affects the bacteria it targets is known as antibiotics | mode of action |
| antibiotics that specifically target the cell membrane are especially useful for treating | Gram - bacteria |
| These are specialized protein pumps in the cell walls of bacteria that grab antibiotics that have entered the bacteria and pump them back out | efflux pumps |
| This is the term for any condition in which the normal structure or functions of an organism are damaged or impaired | disease |
| This is the term for successful colonization of a host by a mircobe | infection |
| The s & s characteristic of disease are called | syndrome |
| Infectious diseases that are commonly aquired in hospitals are called | Nosocomial Diseases |
| This is the number of cells or virions that are needed to cause an active infection in 50% of inoculated individuals | ID50 |
| An organisms ___ is its ability to cause disease; while its ___ describes the severity of the disease | pathogenicity; virulence |
| Lytic Cycle | 1. Attachment 2. Penetration 3. Biosynthesis 4. Maturation 5. Lysis |
| Lysogenic Cycle | 1. Attachment 2. Penetration 3. Encoding 4. Dormancy *Stress* brings it to Biosynthesis |
| Prokaryotes are described as ubiquitous this means that they | are everywhere |
| Human pathogens are typically classified as this type of symbiotic relationship | parasitism |
| Many betaproteobacteria can be described as eutrophs meaning they | need relatively high amounts of nutrients to survive |
| These bacteria are causative agents of a majority of stomach ulcers | Helicobacter pylori |
| These corkscrew shaped bacteria that contain axial filament between their inner and outer membrane | spirochete species |
| Proteobacteria and nonproteobacteria can both be dsecried as | gram negative |
| This is the microorganism that is not normally pathogenic but can be with factors | opportunistic pathogen |
| This bacterial genus is one of the most studied because it produces more toxins than any other genus | Clostridium |
| Helminths are | worms |
| Disease caused by fugus infections are called | mycoses |
| bacteria replicate themselves via process of | binary fission |
| you are bit by a tick carrying Lyme's Disease which you contract. This is an example of ___ transmission. | Vector |
| The outer protein coat of a virus is called | Capsid |
| Viruses do not effect | (none of the above) |
| Diseases that spread from animal to human | Zoonotic Diseases |
| ___ viral transmission is when a virus spreads from host to host | Vector |
| The person in the lab session before you sneezes spreading Flu A Later you catch the virus This is an example of ___ transmission | Indirect |
| This type of ssRNA virus integrates its genome into the hosts DNA using the process of reverse transcription | Retrovirus |
| The specificity of a virus for a specific host is called | Viral Tropism |
| Most Viruses mutate at a ___ rate | high |
| Protists Fungi and plants are part of which domain | Eukarya |
| Which domain of life Bacillus anthracis belong to | bacteria |
| Unicellular prokaryotes that have no known human pathogens and no peptidoglycan in their cell walls | archaea |
| almost all viruses must be viewed with ___ because of their extremely small size | Electron microscopy |
| These are small circular units of DNA that reside in the cytoplasm of cells | plasmids |
| This term describes a bacterium that has multiple flagella | lophotrichous |
| A streptococcus bacteria will appear under the microscope as | chains of spheres |
| This organelle is the sight of cellular respiration and energy production in eukaryotes | Mitochondria |
| This part of the bacteria is a hollow tube used to transfer genetic material between individuals | F/Sex Pilus |
| __ are the sites of protein synthesis | Ribosomes |
| ___ is the site of protein processing and modification after proteins leave the ER | Golgi Apparatus |