Sample Test Questions
... above. ____25) Chemosynthesis a) is photosynthesis that is carried out by bacteria rather than plants b) is performed by heterotrophic bacteria c) enables the synthesis of organic molecules using energy from inorganic molecules d) cannot manufacture their own food ____26) Nitrogen fixing bacteria a) ...
... above. ____25) Chemosynthesis a) is photosynthesis that is carried out by bacteria rather than plants b) is performed by heterotrophic bacteria c) enables the synthesis of organic molecules using energy from inorganic molecules d) cannot manufacture their own food ____26) Nitrogen fixing bacteria a) ...
Sept 26th Nitrogen Addendum
... Inputs = 11 Outputs = 2 NET RETENTION -- similar in most temperate, terrestrial ecosystems • naturally low and high fertility systems have different retention rates and potential • can predict losses as a result of disturbance (like clearcutting) -- where does N go? probably accumulating in soil org ...
... Inputs = 11 Outputs = 2 NET RETENTION -- similar in most temperate, terrestrial ecosystems • naturally low and high fertility systems have different retention rates and potential • can predict losses as a result of disturbance (like clearcutting) -- where does N go? probably accumulating in soil org ...
Prokaryotes- Ch. 16
... Heterotrophs obtain carbon from existing organic molecules (such as those in food). ...
... Heterotrophs obtain carbon from existing organic molecules (such as those in food). ...
Honors Biology - WordPress.com
... prey. When they find it, they engulf it and as a group secrete a substance that digests it. The entire colony then feeds on the nutrients. They can be found in soil, are thin rod shaped, gram-negative cells that exhibit self-organizing behavior as a response to environmental cues. The swarm, which h ...
... prey. When they find it, they engulf it and as a group secrete a substance that digests it. The entire colony then feeds on the nutrients. They can be found in soil, are thin rod shaped, gram-negative cells that exhibit self-organizing behavior as a response to environmental cues. The swarm, which h ...
Section 2-Bacteria
... Decomposers are organisms that break down large organisms into small chemicals. They are known as nature’s ...
... Decomposers are organisms that break down large organisms into small chemicals. They are known as nature’s ...
lipids - UniMAP Portal
... Gas-Liquid Chromatography GLC is a very useful technique in lipid analysis, particularly for the separation of very similar compounds within classes. ...
... Gas-Liquid Chromatography GLC is a very useful technique in lipid analysis, particularly for the separation of very similar compounds within classes. ...
Phosphorus and sulfur cycles
... can reduce the bioavailability of these metal ions. Sulfur compounds Organic sulfur compounds such as proteins in living organisms cycle with inorganic sulfate ions in soil or water. Most sulfur is bound up in rocks and salts or buried in deep ocean sediments. Decomposers break down organic sulfur c ...
... can reduce the bioavailability of these metal ions. Sulfur compounds Organic sulfur compounds such as proteins in living organisms cycle with inorganic sulfate ions in soil or water. Most sulfur is bound up in rocks and salts or buried in deep ocean sediments. Decomposers break down organic sulfur c ...
File
... If oil is used only once like when you fry an egg, only a few of the bonds do this so it’s not too bad. However, if oil is constantly reused, like in fast food French fry machines, more and more of the cis bonds are changed to trans until significant numbers of fatty acids with trans bonds build up. ...
... If oil is used only once like when you fry an egg, only a few of the bonds do this so it’s not too bad. However, if oil is constantly reused, like in fast food French fry machines, more and more of the cis bonds are changed to trans until significant numbers of fatty acids with trans bonds build up. ...
Appendix 12 - Beef Background Knowledge
... Seafood caused 723 outbreaks and 8,071 cases of illness. Produce caused 432 outbreaks and 25,823 illnesses. Poultry caused 354 outbreaks and 11,894 illnesses. Beef caused 343 outbreaks and 10,872 illnesses. Eggs caused 309 outbreaks and 10,750 illnesses. Multi-ingredient foods, where the contaminate ...
... Seafood caused 723 outbreaks and 8,071 cases of illness. Produce caused 432 outbreaks and 25,823 illnesses. Poultry caused 354 outbreaks and 11,894 illnesses. Beef caused 343 outbreaks and 10,872 illnesses. Eggs caused 309 outbreaks and 10,750 illnesses. Multi-ingredient foods, where the contaminate ...
2.4 Biological Parameters
... gives a direct count of the number can be determine by passing a known volume of water sample through a membrane filter that has a very small pore size. The bacteria are retained on the filter then contacted with an agar that contains nutrients necessary for the growth of the bacteria. After incub ...
... gives a direct count of the number can be determine by passing a known volume of water sample through a membrane filter that has a very small pore size. The bacteria are retained on the filter then contacted with an agar that contains nutrients necessary for the growth of the bacteria. After incub ...
Π-True/False Questions
... 1) An isolated colony on a streak plate contains millions or billions of identical cells 2) Most pathogenic bacteria are thermophiles ...
... 1) An isolated colony on a streak plate contains millions or billions of identical cells 2) Most pathogenic bacteria are thermophiles ...
MULTIPLE CHOICE. Choose the one alternative
... dominance in a community over others. 80) Certain microbes are beneficial to crops when they produce nutrients (e.g., NH4+, SO42-) usable by a crop from a substrate that was unusable. Other microbes can cause diseases in plants, much like pathogens cause disease in humans. 81) Answers will vary, but ...
... dominance in a community over others. 80) Certain microbes are beneficial to crops when they produce nutrients (e.g., NH4+, SO42-) usable by a crop from a substrate that was unusable. Other microbes can cause diseases in plants, much like pathogens cause disease in humans. 81) Answers will vary, but ...
Bacteria - General - Austin Community College
... Vinegar is a fermented food traditionally made by the spontaneous souring of wine. Industrial Vinegar production begins by inoculating the fruit juice with yeasts which ferment it to an alcohol content of 1020%. Then the juice in inoculated with the bacterium, Acetobacter aceti, which convert the al ...
... Vinegar is a fermented food traditionally made by the spontaneous souring of wine. Industrial Vinegar production begins by inoculating the fruit juice with yeasts which ferment it to an alcohol content of 1020%. Then the juice in inoculated with the bacterium, Acetobacter aceti, which convert the al ...
Chapter 11 - Power Point Presentation
... Group contains many important pathogens Habitats:soil, plants, animal respiratory and intestinal tracts many in this group known also as enterics (found in human intestine) ...
... Group contains many important pathogens Habitats:soil, plants, animal respiratory and intestinal tracts many in this group known also as enterics (found in human intestine) ...
CHAPTER 41 The Nature of Fungi
... Fungi are a distinct class of microorganisms, most of which are free-living in nature where they function as decomposers in the energy cycle. Of the more than 200,000 known species, fewer than 200 have been reported to produce disease in humans. These diseases, the mycoses, have unique clinical and ...
... Fungi are a distinct class of microorganisms, most of which are free-living in nature where they function as decomposers in the energy cycle. Of the more than 200,000 known species, fewer than 200 have been reported to produce disease in humans. These diseases, the mycoses, have unique clinical and ...
bacteria_2_-_identification__reproduction_web_version
... Facultative aerobes/anaerobe can live with or without the condition; ex.: facultative anaerobes grow better in anaerobic conditions, but can tolerate oxygen ...
... Facultative aerobes/anaerobe can live with or without the condition; ex.: facultative anaerobes grow better in anaerobic conditions, but can tolerate oxygen ...
Chapter 1: Introduction to Microbiology
... atmospheric oxygen on Earth Microbes are essential for decomposition of dead organisms Many biologically important elements (S, N, P) are cycled by microbes ...
... atmospheric oxygen on Earth Microbes are essential for decomposition of dead organisms Many biologically important elements (S, N, P) are cycled by microbes ...
WHAT DO FOSSIL BACTERIA LOOK LIKE? EXAMPLES OF 3.5
... discovered (9). The rocks from the surface of the early Earth consist of sediments derived from volcanic material and sediments precipitated chemically from solutions emanating from hydrothermal vents on the seafloor or from evaporites in shallow seas/pools (10). At the same time as the sediments we ...
... discovered (9). The rocks from the surface of the early Earth consist of sediments derived from volcanic material and sediments precipitated chemically from solutions emanating from hydrothermal vents on the seafloor or from evaporites in shallow seas/pools (10). At the same time as the sediments we ...
Foundations in Microbiology
... • Resembles profile of lake but has variations in salinity, depth, temperature, hydrostatic pressure, and mixing • Contains a zone, called an estuary, where river meets the sea; fluctuates in salinity, is very high in nutrients • Tidal wave action subjects the coastal habitat to alternate period of ...
... • Resembles profile of lake but has variations in salinity, depth, temperature, hydrostatic pressure, and mixing • Contains a zone, called an estuary, where river meets the sea; fluctuates in salinity, is very high in nutrients • Tidal wave action subjects the coastal habitat to alternate period of ...
Syllabus Science Microbiology
... 4. Preservation of microbial cultures a. Periodic sub culturing and storage at refrigeration temperature b. Soil culture method for fungi 5. Study of pigmented bacteria a. Staphylococcus aureus b. Staphylococcus epidermidis c. Micrococcus luteus d. Serratia marscecens e. Pseudomonas aeruginosa 6. St ...
... 4. Preservation of microbial cultures a. Periodic sub culturing and storage at refrigeration temperature b. Soil culture method for fungi 5. Study of pigmented bacteria a. Staphylococcus aureus b. Staphylococcus epidermidis c. Micrococcus luteus d. Serratia marscecens e. Pseudomonas aeruginosa 6. St ...
Bacteria - Mr. Shanks` Class
... 1. Capsule: – a sticky protein cover found in some bacteria 2. Cell wall: – a protective coating of all bacteria 3. Cell membrane: – controls entry of molecules 4. Circular chromosome of DNA [not enclosed in a nucleus] 5. Pilus: - a protein tube that attaches to other bacteria ...
... 1. Capsule: – a sticky protein cover found in some bacteria 2. Cell wall: – a protective coating of all bacteria 3. Cell membrane: – controls entry of molecules 4. Circular chromosome of DNA [not enclosed in a nucleus] 5. Pilus: - a protein tube that attaches to other bacteria ...
Central Committee of Examination Final Exam (First Term 1430 /14
... a- Y-enterocolitica b- Y-pestis c- Y pseudotuberculsois d- non of the above ...
... a- Y-enterocolitica b- Y-pestis c- Y pseudotuberculsois d- non of the above ...
Phospholipid-derived fatty acids
Phospholipid-derived fatty acids (PLFA) are widely used in microbial ecology as chemotaxonomic markers of bacteria and other organisms. Phospholipids are the primary lipids composing cellular membranes. Phospholipids can be saponified, which releases the fatty acids contained in their diglyceride tail. Once the phospholipids of an unknown sample are saponified, the composition of the resulting PLFA can be compared to the PLFA of known organisms to determine the identity of the sample organism. PLFA analysis may be combined with other techniques, such as stable isotope probing to determine which microbes are metabolically active in a sample. PLFA analysis was pioneered by D.C. White, MD, PhD, at the University of Tennessee, in the early to mid 1980s.