The effects of extracellular pH on immune function
... respiratory conditions such as cystic fibrosis [9], and during neoplastic growth and invasion [8, 10]. Therefore, perhaps surprisingly, there are relatively few studies on the effect of altered extracellular pH on immune cells and their function. Also considering the clinical frequency of acid-base ...
... respiratory conditions such as cystic fibrosis [9], and during neoplastic growth and invasion [8, 10]. Therefore, perhaps surprisingly, there are relatively few studies on the effect of altered extracellular pH on immune cells and their function. Also considering the clinical frequency of acid-base ...
Forces That Move Ions and Molecules
... the Brownian motion of suspended molecules. At this point the lights are turned o and the room is completely dark. No one can see anyone else or where they are in the room, but they all keep moving. After 15 minutes everyone is told to stop where they are and the lights are turned on. Remember ever ...
... the Brownian motion of suspended molecules. At this point the lights are turned o and the room is completely dark. No one can see anyone else or where they are in the room, but they all keep moving. After 15 minutes everyone is told to stop where they are and the lights are turned on. Remember ever ...
Biotechnology Advances
... specific bacteria in their habitats and their interaction with other biota or their chemical and physical environment. For a long time microbial ecology was unable to function at ...
... specific bacteria in their habitats and their interaction with other biota or their chemical and physical environment. For a long time microbial ecology was unable to function at ...
Adenosine
... 2. and isoforms serve different roles in neuronal signaling 3. isoform is expressed in the testis 4. calcineurin-mediated dephosphorylation and nuclear translocation is a central event in signal transduction, which responses to Ca2-mobilizing stimuli. ...
... 2. and isoforms serve different roles in neuronal signaling 3. isoform is expressed in the testis 4. calcineurin-mediated dephosphorylation and nuclear translocation is a central event in signal transduction, which responses to Ca2-mobilizing stimuli. ...
Similarities and differences in the responses of microorganisms to
... from spores themselves. Further, variations in chemical composition may occur on growth under different conditions producing altered responses to antimicrobial agents. It is not surprising, therefore, that microbial susceptibilities to biocides and especially to antibiotics differ greatly. It should ...
... from spores themselves. Further, variations in chemical composition may occur on growth under different conditions producing altered responses to antimicrobial agents. It is not surprising, therefore, that microbial susceptibilities to biocides and especially to antibiotics differ greatly. It should ...
Rapid Method For Transmission Electron Microscope Study Of
... were used in their studies are more complex and thicker compare to the bacteria that we used in this study. Therefore, the penetration and effects of the GA would be harsh for the bacteria, if they were exposed for a longer time as in the SMTEM. Even though the GA was exposed shorter time in the RMT ...
... were used in their studies are more complex and thicker compare to the bacteria that we used in this study. Therefore, the penetration and effects of the GA would be harsh for the bacteria, if they were exposed for a longer time as in the SMTEM. Even though the GA was exposed shorter time in the RMT ...
Definition Assignment
... (Shrratt, 1990). The cristae are very important structures as they help increase the surface area inside the mitochondria. This increased surface area provides more space for the required chemical reactions to take place (Shrratt, 1990). This essentially parallels the significance of microvilli (mem ...
... (Shrratt, 1990). The cristae are very important structures as they help increase the surface area inside the mitochondria. This increased surface area provides more space for the required chemical reactions to take place (Shrratt, 1990). This essentially parallels the significance of microvilli (mem ...
The Evolution of Symbiosis
... cellulose into forms that the termite can utilize. The termite ingests nourishment for the bacteria, and they, in return, convert these foodstuffs into nourishment for the termite. Symbiosis also solves the problem of motility and large size for some organisms. Polymastigotes, for example, have a se ...
... cellulose into forms that the termite can utilize. The termite ingests nourishment for the bacteria, and they, in return, convert these foodstuffs into nourishment for the termite. Symbiosis also solves the problem of motility and large size for some organisms. Polymastigotes, for example, have a se ...
AP & Regents Biology - Revere Local Schools
... move toward positive stimuli move away from negative stimuli ...
... move toward positive stimuli move away from negative stimuli ...
Document
... Section: Bacterial Cytoplasmic Membranes 5) The __________ body anchors the bacterial flagellum in the cell wall. Answer: basal Bloom's Rank: Knowledge Section: External Structures of Bacterial Cells 6) The reserve deposits of starch or other compounds found in many prokaryotic cells are called ____ ...
... Section: Bacterial Cytoplasmic Membranes 5) The __________ body anchors the bacterial flagellum in the cell wall. Answer: basal Bloom's Rank: Knowledge Section: External Structures of Bacterial Cells 6) The reserve deposits of starch or other compounds found in many prokaryotic cells are called ____ ...
Electricity-producing bacterial communities in microbial fuel cells
... driven in part by a variety of operating conditions, demonstrates the versatility of bacteria that can either transfer electrons to the electrode or can exist in the reactor as a result of symbiotic relationships with electricity-producing bacteria. A picture is emerging that suggests microorganisms ...
... driven in part by a variety of operating conditions, demonstrates the versatility of bacteria that can either transfer electrons to the electrode or can exist in the reactor as a result of symbiotic relationships with electricity-producing bacteria. A picture is emerging that suggests microorganisms ...
Assessing the effect of different shapes of glyco
... rod AuNPs involved in effective CPIs is higher than spherical and star shaped counterparts. This might be because of the interaction of the large number of rod AuNPs with the E. coli surface compared to star shaped or spherical counterparts (Fig. 3a and b).18 Upon close examination of the rod shaped ...
... rod AuNPs involved in effective CPIs is higher than spherical and star shaped counterparts. This might be because of the interaction of the large number of rod AuNPs with the E. coli surface compared to star shaped or spherical counterparts (Fig. 3a and b).18 Upon close examination of the rod shaped ...
Assessing the effect of different shapes of glyco
... rod AuNPs involved in effective CPIs is higher than spherical and star shaped counterparts. This might be because of the interaction of the large number of rod AuNPs with the E. coli surface compared to star shaped or spherical counterparts (Fig. 3a and b).18 Upon close examination of the rod shaped ...
... rod AuNPs involved in effective CPIs is higher than spherical and star shaped counterparts. This might be because of the interaction of the large number of rod AuNPs with the E. coli surface compared to star shaped or spherical counterparts (Fig. 3a and b).18 Upon close examination of the rod shaped ...
Group-specific effects on coastal bacterioplankton of
... have been shown to induce toxic effects on a variety of organisms, including copepods and phytoand bacterioplankton. However, the nature of and the players in this interaction remain poorly understood. We tested the effect of 3 PUAs commonly produced by marine diatoms — 2E, 4E/Z-heptadienal (HEPTA), ...
... have been shown to induce toxic effects on a variety of organisms, including copepods and phytoand bacterioplankton. However, the nature of and the players in this interaction remain poorly understood. We tested the effect of 3 PUAs commonly produced by marine diatoms — 2E, 4E/Z-heptadienal (HEPTA), ...
Chemically Induced Aberrations of Mitosis in Bacteria
... After pre-drying of the surface, the suspension of organisms was streaked over the agar with a pipette in about five streaks parallel to the axis of the gradient. The plates were then incubated and the organisms examined cytologically after various periods of exposure. Any resistant colonies were cu ...
... After pre-drying of the surface, the suspension of organisms was streaked over the agar with a pipette in about five streaks parallel to the axis of the gradient. The plates were then incubated and the organisms examined cytologically after various periods of exposure. Any resistant colonies were cu ...
Patterning and Separating Infected Bacteria Using Host–Parasite
... 2003). Photolithography has also been used in fabricating bacterial arrays within PEG microstructures on silicon, glass, or poly(dimethylsiloxane) (PDMS) surfaces (Koh et al., 2003b). Here we present an alternative method to pattern bacterial cells by utilizing host±parasite and virus± antibody inte ...
... 2003). Photolithography has also been used in fabricating bacterial arrays within PEG microstructures on silicon, glass, or poly(dimethylsiloxane) (PDMS) surfaces (Koh et al., 2003b). Here we present an alternative method to pattern bacterial cells by utilizing host±parasite and virus± antibody inte ...
Pdf - Text of NPTEL IIT Video Lectures
... Now, if we see the entire bacterial world based on its shape, the bacteria can be categorized. And, if we see its shape, you will find that, some of this bacteria are round or spherical in nature, some are rod and some are spiral in nature. Now, this are the, this, this are some of this classificat ...
... Now, if we see the entire bacterial world based on its shape, the bacteria can be categorized. And, if we see its shape, you will find that, some of this bacteria are round or spherical in nature, some are rod and some are spiral in nature. Now, this are the, this, this are some of this classificat ...
Functions of LIM proteins in cell polarity and chemotactic motility
... F-actin distribution in LimD± and LimC±/D± mutants, and changes in chemotactic motility associated with an increased pseudopod formation. Our results reveal both unique and overlapping roles for LimC and LimD, and suggest that both act directly on the actin cytoskeleton and provide rigidity to the c ...
... F-actin distribution in LimD± and LimC±/D± mutants, and changes in chemotactic motility associated with an increased pseudopod formation. Our results reveal both unique and overlapping roles for LimC and LimD, and suggest that both act directly on the actin cytoskeleton and provide rigidity to the c ...
Microbiology – Chapter 1
... • Living organisms are assigned to groups based upon their similarities. ...
... • Living organisms are assigned to groups based upon their similarities. ...
GCMS lesson plan october 3
... Independent Practice: TSW explore bacteria and binary fission by developing an animation. TSW model the stages of binary fission in a comic strip. TSW act as if they are a bacteria cell interacting with other bacteria cells. Teacher Input: TTW walk around the class monitoring the students to make su ...
... Independent Practice: TSW explore bacteria and binary fission by developing an animation. TSW model the stages of binary fission in a comic strip. TSW act as if they are a bacteria cell interacting with other bacteria cells. Teacher Input: TTW walk around the class monitoring the students to make su ...
Experimental taphonomy of giant sulphur bacteria: implications for
... bounding membrane comparable with a metazoan fertilization envelope, large size and the absence of rigid cell walls [1 –3]. Other interpretations identify these fossils as representing non-metazoan holozoans [4]. These fossils may thus provide a snapshot of very early events in the evolution of anim ...
... bounding membrane comparable with a metazoan fertilization envelope, large size and the absence of rigid cell walls [1 –3]. Other interpretations identify these fossils as representing non-metazoan holozoans [4]. These fossils may thus provide a snapshot of very early events in the evolution of anim ...
The Bacterial Cytoskeleton
... the division site (17). This confirms that the intracellular organisation of FtsZ is vastly different to that of tubulin, which probably reflects the fact that the two proteins have evolved to perform very different functions. Functions of the Z Ring Being the first event in the bacterial cell divis ...
... the division site (17). This confirms that the intracellular organisation of FtsZ is vastly different to that of tubulin, which probably reflects the fact that the two proteins have evolved to perform very different functions. Functions of the Z Ring Being the first event in the bacterial cell divis ...
Characterization of uncultured giant rod-shaped
... (0–3 cm deep) and surface water were collected from near the edge of a shallow freshwater pond in Kanazawa, Japan (36u 549 N 136u 93 739 E), and placed into tightly capped 0.5 litre glass bottles. Isolation was begun immediately on return to the laboratory. The MTB were magnetically concentrated by ...
... (0–3 cm deep) and surface water were collected from near the edge of a shallow freshwater pond in Kanazawa, Japan (36u 549 N 136u 93 739 E), and placed into tightly capped 0.5 litre glass bottles. Isolation was begun immediately on return to the laboratory. The MTB were magnetically concentrated by ...
(From tl~ Laboratories of The Rockefeller Institute far Medical
... can no longer multiply. Most of the experiments were carried out on the coli system so that this will be discussed first and in more detail. Table I shows that at a mustard concentration of 0.8 X 10-8 ~ the phage formation is still 50 per cent or more of the untreated control but the number of organ ...
... can no longer multiply. Most of the experiments were carried out on the coli system so that this will be discussed first and in more detail. Table I shows that at a mustard concentration of 0.8 X 10-8 ~ the phage formation is still 50 per cent or more of the untreated control but the number of organ ...
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.