Role for bioremediation Essay Example for Free

Role for bioremediation EssayChapter 1 Which unitary of the pastime is not a role for bioremediation? Curing infectious diseases All of the following ar examples of new emerging infectious diseases further Chickenpox Normal microbiota Beneficial microbial inhabitants of the body Golden Age of Microbiology Rapid discovery of basic microbiology principles Re-emerging diseases one time controlled by preventative public health measures they are now on the rise Prions Resistant to the usual sterilization procedures for pathogens Spontaneous generation The converse of biosynthesis A carrelular infectious agent Chemical composition includes RNA or DNA In the scientific hold Bacillus anthracis, the term Bacillus is the genus name include the agents responsible for stomach ulcers and plague bacterium are prokaryotes Bacteria impart distinctive flavors in foods such as yogurt and cheese Bacteria are obligate intracellular parasites Viruses have a protein coat that surrounds the gene tic information Viruses include molds and yeasts Fungi contain the phylum Protozoa and algae Protists derive their life force from degrading organic materials Fungi are the most metabolically diverse group Bacteria Which one of the following sequences exhibits increasing size? Viruses to bacterium to protozoa Which one of the following would be consistent with the idea of spontaneous generation? Sick people give rise to microorganisms in their bodyChapter 3 The g stain technique is valuable in distinguishing different types of bacteria One of the below is wrong permit eukaryotic motility Flagella are involved in group translocation Chromosomes Contain components of the electron transport chain for ATP generation Plasma Membranes may have peritrichous or polar arrangements Flagella are analogue rods contained within a nucleus Chromosomes replication is followed by binary fission Chromosomes are closed circular single molecues Chromosomes are used for chemotaxis Flagella involve d with predict sequences in secretion Plasma Membranes Nucleoid Stores essential genetic information Glycocalyx Prevents phagocytosis attachment Plasmid Contains a few genes not essential for cell-Metachromatic granules Site of nutrient accumulation in cell Fimbriae Short straight hair-like fibers-Gram (-) cell wall Rigid outer boundary A bacterial arrangement called a sarcina has which of the following morphological shapes? Spheres in packets of eight All of the following characteristics slang to the prokaryotes except they reproduce by mitosisChapter 4 A differential medium is one thatdistinguishes colonies of one type of bacterium from those of another type Which of the following conditions are most likely to affect the growth of bacteria? temperature, oxygen, and pH At what point in the bacterial growth curve are bacteria the most vulnerable to antibiotics log phase Which of the following methods of measuring population growth is a influence count standard plate count usin g a dilution series Faculative bacteria are those thatgrow in the presence of absence of oxygen approximately of the human pathogens are mesophiles10. 0001 out of 11 points Mesophiles this group has most of the the pathogens as they grow at body temperature Halophile would grow on selective media containing relatively high levels of salt Alkaphile they can tolerate a pH above 8.5 Psychrotroph can be form growing in the human stomach Anaerobe they do not or cannot use oxygen Hyperthermophile these have been found in seawater from hot water volcanic vents Microaerophile they survive in environments where O2 concentration is relatively low but are inhibited by high O2 levels Obligate aerobe this group requires oxygen for metabolism, just like humans Acidophile can be found growing in the human stomach Facultative Anaerobe they grow best in the presence of oxygen but can grow in the absence of oxygen Barophile they are able to live at the bottom of the ocean-The interval of time between successive binary fissions of a cell or population of cells is known as the generation time -Psychrophiles and thermophiles differ with respect to their best temperature for growth A soil sample is added to a kitchen-gardening medium that has been designed to promote the growth of the genus Pseudomonas while inhibiting the growth of fungi. This test uses a selective mediumChapter 5 Low temperature isbacteriostatic sound metals generally kill microorganisms byreacting with protein sulfhydryl groups to disrupt function Chlorhexidine is a biguanide used towash hands and clean wounds superficially The chemical counterpart of the autoclave usesethene oxide with an inert gas HEPA filters are used to filter which one of the following? Air Ultraviolet light is valuable for reducing the microbial population in the air of a hospital room Of the following, the most efficient method for sterilization of a bacteriological transfer loop is the direct flame Triclosan destroys bacteria by disrupting cell membranes Which one of the following elements would be classified as a halogen Chlorine Moist heat kills microorganisms bydenaturation A substance that has been pasteuriseis not considered sterile5 out of 8 pointsAutoclave vegetational microorganisms, and endosporesDirect Flame Vegetative microorganisms, and endosporesBoiling water for 10 minutes Vegetative microorganisms, not endospores Hot air oven for 2 hours at 160 degreesCelcius Vegetative microorganisms, and endospores Pasteurization pathogenic microorganisms, not endosporesGamma radiation Vegetative microorganisms, not endosporesFiltration Pathogenic microorganisms, not endosporesUltra-high-temperature (UHT) processing Vegetative microorganisms, not endosporesWhen food has been saltedwater diffuses out of microorganisms causing them to shrivelChapter 6 The Krebs motorbike accounts for all the following exceptproduction of pyruvate from glucose Heat is useful in the destruction of bacteria because heat dena tures enzymes by altering their tertiary structures 10.99956 out of 13 points yields pyruvate for use in the TCA cycle Glycolysis requires cytochromes for electron transport Oxidative phosphorylation requires electrons eventually be passed to NADPH Photosynthesis Requires energy from light to take place Photosynthesis ends with acceptance of electrons by oxygen atoms Oxidative phosphorylation starts with the oxidation of NADH TCA pass requires an investment of 2 ATPs Glycolysis uses chlorophyll as the pigment in the cyanobacteria Photosynthesis results in the formation of water Photosynthesis is essentially the opposite of aerobic respiration Photosynthesis begins with a glucose molecule Glycolysis results in the net gain of 2 ATPs Glycolysis generates two carbon dioxide molecules per turn TCA Cycle Which one of the following does not involve a phosphorylation reaction? The hydrolysis of ATP Which of the following states is the most correct for enzyme reactions Enzymes are sp ecific for only one reaction, generally in one direction All of the following apply to the process of anabolism except the process is exergonic You are studying an obligate anaerobe. Which one of the following pathways can you be assured is occurring? Glycolysis A bacterium that uses glucose as an energy source has been isolated from an anaerobic environment. After the growth of the bacterium, the pH of the growth medium is measured and found to be very acidic. When analyzed, the medium is found to have a high concentration of lactic acid. This bacterium is most likely metabolizing by a process known as fermentation