Inexpensive and fast pathogenic bacteria screening using field
... In the case of our BioFET, as in Figure 1, when the potential applied across the gate and the source (Vgs) is larger than the threshold voltage (Vth) of the device (Vgs>Vth), a conducting channel is formed between the source and the drain. Additionally, if a voltage is applied between the drain to s ...
... In the case of our BioFET, as in Figure 1, when the potential applied across the gate and the source (Vgs) is larger than the threshold voltage (Vth) of the device (Vgs>Vth), a conducting channel is formed between the source and the drain. Additionally, if a voltage is applied between the drain to s ...
Bile secretion
... - HCl acts indirectly by initiating enteric reflexes that causes an increase in pepsinogen secretion by peptic cell. - Excess of acids - causes feed back inhibition of gastric secretions by 2 ways: * Reduction of gastrin release * Initiation of inhibitory reflexes. This maintains the pH from falling ...
... - HCl acts indirectly by initiating enteric reflexes that causes an increase in pepsinogen secretion by peptic cell. - Excess of acids - causes feed back inhibition of gastric secretions by 2 ways: * Reduction of gastrin release * Initiation of inhibitory reflexes. This maintains the pH from falling ...
Biochemistry_Summary
... The metabolism( activation/inactivation) of receptors of the hormone in the target cell. The presence of factors within target cell necessary for the response. Up- or down-regulation of the receptor. Post-receptor desensitization of the cell >> down-regulation. ** There’re molecules within ...
... The metabolism( activation/inactivation) of receptors of the hormone in the target cell. The presence of factors within target cell necessary for the response. Up- or down-regulation of the receptor. Post-receptor desensitization of the cell >> down-regulation. ** There’re molecules within ...
Studies on the Bacterial Component of Soybean Root
... preparations there was a certain amount of shrinkage of the bacteroids resulting in empty spaces between them and their cell walls; it is probable that in life these were closely applied to the surface of the bacteroids. The space between the bacteroid walls and the membrane envelope was occupied by ...
... preparations there was a certain amount of shrinkage of the bacteroids resulting in empty spaces between them and their cell walls; it is probable that in life these were closely applied to the surface of the bacteroids. The space between the bacteroid walls and the membrane envelope was occupied by ...
iGCSE revision notes topic 2 (Part 1) Cells, animal
... similar structures, working together to perform a shared function • organ as a structure made up of a group of tissues, working together to perform specific functions • organ system as a group of organs with related functions, working together to perform body functions using examples covered in Sect ...
... similar structures, working together to perform a shared function • organ as a structure made up of a group of tissues, working together to perform specific functions • organ system as a group of organs with related functions, working together to perform body functions using examples covered in Sect ...
themes and objectives
... Thoroughly discuss the role of antibiotics in fighting bacterial infections and how bacteria counter this through resistance. ...
... Thoroughly discuss the role of antibiotics in fighting bacterial infections and how bacteria counter this through resistance. ...
Functional Control by Codon Bias in Magnetic Bacteria
... with each experiment measuring 10–40 individual bacterial cells) where as the magnetic bacteria were found to swim with speeds of 32 ± 1030 m/s (n = 4, two experiments for each strain of the magnetic bacteria). A two fold higher speed of magnetic bacteria compared to E. coli was in agreement with ...
... with each experiment measuring 10–40 individual bacterial cells) where as the magnetic bacteria were found to swim with speeds of 32 ± 1030 m/s (n = 4, two experiments for each strain of the magnetic bacteria). A two fold higher speed of magnetic bacteria compared to E. coli was in agreement with ...
Document
... Under anaerobic conditions, proteorhodopsin alters pmf to power the flagellar motor and increase cell viability via light-based proton pumping. ...
... Under anaerobic conditions, proteorhodopsin alters pmf to power the flagellar motor and increase cell viability via light-based proton pumping. ...
Nitrifying Bacteria - Florida Rural Water Association
... Figure 4. Planktonic Bacteria vs. Biofilm Bacteria The tap water experienced nitrification in all three 1-mL sample tubes, whereas the swab water experienced nitrification in one of the three tubes. ...
... Figure 4. Planktonic Bacteria vs. Biofilm Bacteria The tap water experienced nitrification in all three 1-mL sample tubes, whereas the swab water experienced nitrification in one of the three tubes. ...
Staining Bacteria
... method to stain bacteria so they can be visible in specimen samples. • Differentiate bacteria into two large groups (the Gram Positive and the Gram negative) • Gram status is important in medicine; the presence or absence of a cell wall will change the bacterium's susceptibility to some antibiotics ...
... method to stain bacteria so they can be visible in specimen samples. • Differentiate bacteria into two large groups (the Gram Positive and the Gram negative) • Gram status is important in medicine; the presence or absence of a cell wall will change the bacterium's susceptibility to some antibiotics ...
Dental Plaque: A Microbial Biofilm
... • Attached – attach to surfaces and each other. These communities of bacteria that are attached to each other and to a surface are called a ___________. • Once the bacteria attaches to a surface, it activates new genes that changes its characteristics that it had previously as a free‐floating orga ...
... • Attached – attach to surfaces and each other. These communities of bacteria that are attached to each other and to a surface are called a ___________. • Once the bacteria attaches to a surface, it activates new genes that changes its characteristics that it had previously as a free‐floating orga ...
Non-Flagellar Swimming in Marine Synechococcus
... although it is difficult to predict how large these fibrils or bundles of fibrils would need to be to give the cell an “effective” helical shape such that rotation, generated by some other component, would be accompanied by forward movement. There is at least one other example in a swimming bacteriu ...
... although it is difficult to predict how large these fibrils or bundles of fibrils would need to be to give the cell an “effective” helical shape such that rotation, generated by some other component, would be accompanied by forward movement. There is at least one other example in a swimming bacteriu ...
and Virus-Based Biosensing Applications
... substrate to a chemogenic or fluorescent signal that is easily detected by a spectrophotometer (Ivanov and Dragunsky 2005). This technique may be highly sensitive, however, it requires highly trained technicians and high maintenance equipment, which make it unfeasible in many underdeveloped regions ...
... substrate to a chemogenic or fluorescent signal that is easily detected by a spectrophotometer (Ivanov and Dragunsky 2005). This technique may be highly sensitive, however, it requires highly trained technicians and high maintenance equipment, which make it unfeasible in many underdeveloped regions ...
27_InstGuide_AR
... humans are capable stewards of life on Earth. Until the recent development of genetic prospecting techniques and the discovery of huge numbers of prokaryotes living deep underground, we did not even know of the existence of the majority of living biomass. 3. Discuss with your students that animal l ...
... humans are capable stewards of life on Earth. Until the recent development of genetic prospecting techniques and the discovery of huge numbers of prokaryotes living deep underground, we did not even know of the existence of the majority of living biomass. 3. Discuss with your students that animal l ...
An Ultrastructural Study of the Gastric Campylobacter
... GCLO-1 (Owen et al., 1985), being synonymous with ‘C. pyloridis’. Although they have been described provisionally as campylobacter-like organisms, from the results of this study it can be seen that they have morphological differences from the campylobacters. Unlike campylobacters, the ends of these ...
... GCLO-1 (Owen et al., 1985), being synonymous with ‘C. pyloridis’. Although they have been described provisionally as campylobacter-like organisms, from the results of this study it can be seen that they have morphological differences from the campylobacters. Unlike campylobacters, the ends of these ...
Chapter 9 - Fullfrontalanatomy.com
... "between" (for example, intersecting lines are those that cross each other) and intra- means "inside" (like intravenous). Chemical signals are released by signaling cells in the form of small, usually volatile or soluble molecules called ligands. A ligand is a molecule that binds another specific mo ...
... "between" (for example, intersecting lines are those that cross each other) and intra- means "inside" (like intravenous). Chemical signals are released by signaling cells in the form of small, usually volatile or soluble molecules called ligands. A ligand is a molecule that binds another specific mo ...
Biodiversity
... green. It lives in moist soil and water, and sometimes can be found in melting snow. • Diatoms - They are single cellular and live in salt and fresh water. They use photosynthesis and are a phytoplankton. • Dinoflagellates - They are mostly single celled. Most live in salt water but some are found i ...
... green. It lives in moist soil and water, and sometimes can be found in melting snow. • Diatoms - They are single cellular and live in salt and fresh water. They use photosynthesis and are a phytoplankton. • Dinoflagellates - They are mostly single celled. Most live in salt water but some are found i ...
Endocytosis-like protein uptake in the bacterium Gemmata
... major unsolved problem in biology is how the many unique characteristics of the eukaryote cell evolved, including endomembranes and their dynamic features, such as endocytosis (1). Endocytosis is known as a eukaryote-specific process by which cells internalize molecules from the plasma membrane and r ...
... major unsolved problem in biology is how the many unique characteristics of the eukaryote cell evolved, including endomembranes and their dynamic features, such as endocytosis (1). Endocytosis is known as a eukaryote-specific process by which cells internalize molecules from the plasma membrane and r ...
INTERNSHIP OFFERS SUMMER 2014
... MC4R-caused obesity. However, the MC4R can also engage other signalling pathways. These include the activation of MAP-kinases, recruitment of arrestin and most likely the stimulation of additional G proteins. The present project therefore aims at determining if the MC4R pharmacological chaperones c ...
... MC4R-caused obesity. However, the MC4R can also engage other signalling pathways. These include the activation of MAP-kinases, recruitment of arrestin and most likely the stimulation of additional G proteins. The present project therefore aims at determining if the MC4R pharmacological chaperones c ...
Cell-Cell Interactions
... that multicellular organisms employ as “growth factors” during development. Water-soluble signals cannot diffuse through cell membranes. Therefore, to trigger responses in cells, they must bind to receptor proteins on the surface of the cell. These cell surface receptors (figure 7.6) convert the ext ...
... that multicellular organisms employ as “growth factors” during development. Water-soluble signals cannot diffuse through cell membranes. Therefore, to trigger responses in cells, they must bind to receptor proteins on the surface of the cell. These cell surface receptors (figure 7.6) convert the ext ...
PDF
... are not entirely convincing. A three-dimensional (3D) reconstruction from serial sections and fluorescence microscopy of living cells was presented to support the claim of ‘‘the continuous nature of the membranous envelope surrounding the nuclear body and completely enclosing the nucleoid, apart fro ...
... are not entirely convincing. A three-dimensional (3D) reconstruction from serial sections and fluorescence microscopy of living cells was presented to support the claim of ‘‘the continuous nature of the membranous envelope surrounding the nuclear body and completely enclosing the nucleoid, apart fro ...
Free-living Amoebae May Serve as Hosts for the Chlamydia
... endocytobionts within the tested protozoa and the ability to prevent cyst formation also strengthen the view of a limited evolutionary specialization of Waddlia. Another possible hypothesis is that Waddlia survives within a yet unrecognized reservoir. The best-adapted host identified so far appears ...
... endocytobionts within the tested protozoa and the ability to prevent cyst formation also strengthen the view of a limited evolutionary specialization of Waddlia. Another possible hypothesis is that Waddlia survives within a yet unrecognized reservoir. The best-adapted host identified so far appears ...
A Simplified Guide to Bacteria in Water Part 1 By D
... This test is reasonable fast but tends to indicate only the bacteria which grow rapidly at higher temperatures (3040oC) in two days (these are common times and temperatures that many laboratories use). These bacteria are more likely to have originated from warm blooded animals (including humans) rat ...
... This test is reasonable fast but tends to indicate only the bacteria which grow rapidly at higher temperatures (3040oC) in two days (these are common times and temperatures that many laboratories use). These bacteria are more likely to have originated from warm blooded animals (including humans) rat ...
KS4 Microbes
... The other major difference is the size of the cell. To get an idea of how small these cells are, remember that the human body consists of approximately 100 million animal cells. Bacteria cells are 10-1000 times smaller than animal cells. 11 of 39 ...
... The other major difference is the size of the cell. To get an idea of how small these cells are, remember that the human body consists of approximately 100 million animal cells. Bacteria cells are 10-1000 times smaller than animal cells. 11 of 39 ...
Chemotaxis
Chemotaxis (from chemo- + taxis) is the movement of an organism in response to a chemical stimulus. Somatic cells, bacteria, and other single-cell or multicellular organisms direct their movements according to certain chemicals in their environment. This is important for bacteria to find food (e.g., glucose) by swimming toward the highest concentration of food molecules, or to flee from poisons (e.g., phenol). In multicellular organisms, chemotaxis is critical to early development (e.g., movement of sperm towards the egg during fertilization) and subsequent phases of development (e.g., migration of neurons or lymphocytes) as well as in normal function. In addition, it has been recognized that mechanisms that allow chemotaxis in animals can be subverted during cancer metastasis.Positive chemotaxis occurs if the movement is toward a higher concentration of the chemical in question; negative chemotaxis if the movement is in the opposite direction. Chemically prompted kinesis (randomly directed or nondirectional) can be called chemokinesis.