Cyclin synthesis and degradation and the embryonic cell cycle
... for the post-cellularization cell divisions of the Drosophila embryo (Edgar and O ’Farrell, 1989; Lehner and O ’Farrell, 1989). In this case the rate-limiting step appears to be the synthesis of the homologue of the cdc25 gene that is probably required for the slow post-translational steps after cyc ...
... for the post-cellularization cell divisions of the Drosophila embryo (Edgar and O ’Farrell, 1989; Lehner and O ’Farrell, 1989). In this case the rate-limiting step appears to be the synthesis of the homologue of the cdc25 gene that is probably required for the slow post-translational steps after cyc ...
Insert Title Here
... Q. Water enters the outermost cells of the root by osmosis. What does this tell you about the cell sap of these outermost cells? Active transport ...
... Q. Water enters the outermost cells of the root by osmosis. What does this tell you about the cell sap of these outermost cells? Active transport ...
Potassium regulation
... • 1)activate Na+-K+ pump • 2)make more K+ channels at the luminal side • 3)keep the gradient by the fact that K+ which is secreted is continuously removed • These are the 3 mechanisms by which potassium secretion is affected. ...
... • 1)activate Na+-K+ pump • 2)make more K+ channels at the luminal side • 3)keep the gradient by the fact that K+ which is secreted is continuously removed • These are the 3 mechanisms by which potassium secretion is affected. ...
Compartmentalisation of Rho regulators directs cell
... James Castelli-Gair Hombría4 and António Jacinto1,2,* During development, small RhoGTPases control the precise cell shape changes and movements that underlie morphogenesis. Their activity must be tightly regulated in time and space, but little is known about how Rho regulators (RhoGEFs and RhoGAPs) ...
... James Castelli-Gair Hombría4 and António Jacinto1,2,* During development, small RhoGTPases control the precise cell shape changes and movements that underlie morphogenesis. Their activity must be tightly regulated in time and space, but little is known about how Rho regulators (RhoGEFs and RhoGAPs) ...
Distributed Processing of Sensory Information
... intervals were 10-30 sec. Every 5-10 trials, the intemeuron was depolarized to determine whether it was still able to fire cell 3. Each necessity test lasted until the intemeuron could no longer fire cell 3 (usually less than 20 trials). Cell 3 impulses were counted in a window O-4.5 set from the en ...
... intervals were 10-30 sec. Every 5-10 trials, the intemeuron was depolarized to determine whether it was still able to fire cell 3. Each necessity test lasted until the intemeuron could no longer fire cell 3 (usually less than 20 trials). Cell 3 impulses were counted in a window O-4.5 set from the en ...
The Arabidopsis thaliana proton transporters, AtNhx1 and Avp1, can
... FIG. 3. Distribution of fluorescence and immunodetection of subcellular fractions in gef1 nhx1 cells transformed with two constructs: a GEF1-GFP fusion and a NHX1-(HA)3-tagged fusion. (A) The strain RGY419 (gef1 nhx1) was transformed with plasmids pRG151; GEF1-GFP and pRIN73; NHX1-(HA)3. Transforman ...
... FIG. 3. Distribution of fluorescence and immunodetection of subcellular fractions in gef1 nhx1 cells transformed with two constructs: a GEF1-GFP fusion and a NHX1-(HA)3-tagged fusion. (A) The strain RGY419 (gef1 nhx1) was transformed with plasmids pRG151; GEF1-GFP and pRIN73; NHX1-(HA)3. Transforman ...
-ATPases:
... Plasma membrane H+-ATPases constitute a family of proton pumps driven by hydrolysis of ATP and are found exclusively in the plasma membrane of plants and fungi. Here their primary role is to provide an energy source for transport of nutrients into the cell. The plasma membrane H+-ATPase is an electr ...
... Plasma membrane H+-ATPases constitute a family of proton pumps driven by hydrolysis of ATP and are found exclusively in the plasma membrane of plants and fungi. Here their primary role is to provide an energy source for transport of nutrients into the cell. The plasma membrane H+-ATPase is an electr ...
The structure of secondary cell wall polymers: how
... Rogers et al., 1980). Although the exact biological function (or functions) of these negatively charged SCWPs is not fully understood, several general functions have been attributed to them. These include (i) binding of divalent cations, (ii) role in the balance of metal ions for membrane functional ...
... Rogers et al., 1980). Although the exact biological function (or functions) of these negatively charged SCWPs is not fully understood, several general functions have been attributed to them. These include (i) binding of divalent cations, (ii) role in the balance of metal ions for membrane functional ...
Binding Sites for Bacterial Flagella at the Surface of the Soil Amoeba
... Experimental treatments aimed at blocking bacterial binding to A. castellanii 153413 amoebae Use of anti-Acantharnoeba antibody. Amoebae treated with TlOl (anti-Acanthamoeba) antibody followed by FITC-labelled goat anti-rabbit IgG demonstrated strong surface fluorescence. This fluorescence was origi ...
... Experimental treatments aimed at blocking bacterial binding to A. castellanii 153413 amoebae Use of anti-Acantharnoeba antibody. Amoebae treated with TlOl (anti-Acanthamoeba) antibody followed by FITC-labelled goat anti-rabbit IgG demonstrated strong surface fluorescence. This fluorescence was origi ...
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... positive ectoderm (Fig. 1, 2, 3). In the early limb, from stage 16 to 18H.H., the cholinesterase activity of ectoderm and AER cells is mainly localized on the nuclear envelope (Fig. 1, 2). Then, from stage 20-21 H.H., the main localization is at the plasma membrane (Fig. 3). Positive mesenchymal cel ...
... positive ectoderm (Fig. 1, 2, 3). In the early limb, from stage 16 to 18H.H., the cholinesterase activity of ectoderm and AER cells is mainly localized on the nuclear envelope (Fig. 1, 2). Then, from stage 20-21 H.H., the main localization is at the plasma membrane (Fig. 3). Positive mesenchymal cel ...
Anterior PAR proteins function during cytokinesis and
... from each particular assay was quantified (Total n). These embryos were first divided into groups based on gross embryonic phenotypes observed: wild type (hatched) and unhatched embryos. Unhatched embryos are embryos that did not arrest at the one-cell stage but arrested later in development. Of the ...
... from each particular assay was quantified (Total n). These embryos were first divided into groups based on gross embryonic phenotypes observed: wild type (hatched) and unhatched embryos. Unhatched embryos are embryos that did not arrest at the one-cell stage but arrested later in development. Of the ...
Clathrinmediated transport: assembly required
... After clathrin, the adaptor protein 2 (AP2) is the second most abundant protein at clathrin-coated pits (CCPs), which are the sites of CCV formation. AP2 is a large heterotetrameric complex composed of two large subunits (α and β2), a medium subunit (μ2) and a small subunit (σ2). The large subunits ...
... After clathrin, the adaptor protein 2 (AP2) is the second most abundant protein at clathrin-coated pits (CCPs), which are the sites of CCV formation. AP2 is a large heterotetrameric complex composed of two large subunits (α and β2), a medium subunit (μ2) and a small subunit (σ2). The large subunits ...
pepsin derived soluble bovine collagen
... Why choose Soluble Bovine Collagen for cell culture? Soluble bovine collagen has been pepsin treated, but its physical properties remain virtually identical to those of natural, non-soluble collagen and has been shown to have some additional benefits in cell culture applications over the natural sub ...
... Why choose Soluble Bovine Collagen for cell culture? Soluble bovine collagen has been pepsin treated, but its physical properties remain virtually identical to those of natural, non-soluble collagen and has been shown to have some additional benefits in cell culture applications over the natural sub ...
Regions of interest properties Nucleus properties Cell properties
... Definiens Tissue Studio 3 provides morphological fingerprints and biomarker expression profiles per slides, regions, vessels, cells or sub-cellular compartments. These detailed readouts can, for example, be correlated to patient outcome or therapy response to identify clinically relevant predictors. ...
... Definiens Tissue Studio 3 provides morphological fingerprints and biomarker expression profiles per slides, regions, vessels, cells or sub-cellular compartments. These detailed readouts can, for example, be correlated to patient outcome or therapy response to identify clinically relevant predictors. ...
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 ...
Epithelial repair is a two-stage process driven first by dying cells and
... Fig. 1. Removal of dying cells is a two-stage process consisting of apical contraction followed by extrusion. (A) Confocal time-lapse images (individual Z planes) of UV-treated lifeact–GFP MDCK cells. Timings start 1 h 20 min after UV treatment; xz and xy planes are indicated by corresponding lines ...
... Fig. 1. Removal of dying cells is a two-stage process consisting of apical contraction followed by extrusion. (A) Confocal time-lapse images (individual Z planes) of UV-treated lifeact–GFP MDCK cells. Timings start 1 h 20 min after UV treatment; xz and xy planes are indicated by corresponding lines ...
9700/02 - StudyGuide.PK
... The cubes were carefully blotted dry, weighed and their fresh masses recorded. One cube, 2 cm × 2 cm × 2 cm, was put into a beaker and covered with distilled water. Eight cubes each measuring 1 cm × 1 cm × 1 cm were put into another beaker of distilled water, making sure that they were all covered w ...
... The cubes were carefully blotted dry, weighed and their fresh masses recorded. One cube, 2 cm × 2 cm × 2 cm, was put into a beaker and covered with distilled water. Eight cubes each measuring 1 cm × 1 cm × 1 cm were put into another beaker of distilled water, making sure that they were all covered w ...
Molecular regulation of the diatom cell cycle
... spindle (Fig. 2A, B). The PCs disappear during cytokinesis, while a new MC arises (Pickett-Heaps and Tippit, 1978; Pickett-Heaps, 1991). In addition, diatom mitosis involves the action of an unusual, highly organized ‘central spindle’ that is initially formed outside the nucleus and consists of par ...
... spindle (Fig. 2A, B). The PCs disappear during cytokinesis, while a new MC arises (Pickett-Heaps and Tippit, 1978; Pickett-Heaps, 1991). In addition, diatom mitosis involves the action of an unusual, highly organized ‘central spindle’ that is initially formed outside the nucleus and consists of par ...
Molecular Components of the Bacterial Cytoskeleton
... with the endosymbiont model for the origins of chloroplasts and mitochondria, FtsZ is also found in these organelles in some eukaryotes (Osteryoung and Vierling 1995; Beech et al. 2000), where it retains a conserved function in organelle division (Osteryoung and McAndrew 2001; Vitha et al. 2001). In ...
... with the endosymbiont model for the origins of chloroplasts and mitochondria, FtsZ is also found in these organelles in some eukaryotes (Osteryoung and Vierling 1995; Beech et al. 2000), where it retains a conserved function in organelle division (Osteryoung and McAndrew 2001; Vitha et al. 2001). In ...
The role of cytoplasmic streaming in symplastic transport
... ‘tow’ phenomenon; and so also would be selective coupling of myosin to some particular type of macromolecule (or vesicle) and the subsequent translocation of the macromolecule along actin trackways. Obviously, when the towed entities are dragged through a fluid, convection will result. Obviously als ...
... ‘tow’ phenomenon; and so also would be selective coupling of myosin to some particular type of macromolecule (or vesicle) and the subsequent translocation of the macromolecule along actin trackways. Obviously, when the towed entities are dragged through a fluid, convection will result. Obviously als ...
Biology Unit Title: Basic Biological Principles Timeline (approximate
... and eukaryotic cell structures and functions explain the cell theory and identify the scientists and their major contribitions to the cell theory ...
... and eukaryotic cell structures and functions explain the cell theory and identify the scientists and their major contribitions to the cell theory ...
Leukaemia Section Anaplastic large cell lymphoma (ALCL) Atlas of Genetics and Cytogenetics
... sometimes called ALK lymphomas, or ALKomas. ALK+ ALCL can be further divided into t(2;5) cases, with NPM1-ALK fusion protein which localises both in the cytoplasm and in the nucleus, and t(2;Var), involving various partners and ALK, and a cytoplasmic localization of the fusion protein; the latter ar ...
... sometimes called ALK lymphomas, or ALKomas. ALK+ ALCL can be further divided into t(2;5) cases, with NPM1-ALK fusion protein which localises both in the cytoplasm and in the nucleus, and t(2;Var), involving various partners and ALK, and a cytoplasmic localization of the fusion protein; the latter ar ...
Document
... ii. the amount of creatinine excreted daily needs to remain constant with and approximately equal to the amount that is produced daily 1. UF X Urine concentration (creatinine excretion) is approximately equal to GFR X plasma concentration (creatinine filtration) 2. creatine excretion is a little bit ...
... ii. the amount of creatinine excreted daily needs to remain constant with and approximately equal to the amount that is produced daily 1. UF X Urine concentration (creatinine excretion) is approximately equal to GFR X plasma concentration (creatinine filtration) 2. creatine excretion is a little bit ...
The Digestive System in the Head and Neck
... Sensory Innervation of the Mouth • Roof: The greater palatine and nasopalatine nerves from the maxillary division of the trigeminal nerve • Floor: The lingual nerve (common sensation), a branch of the mandibular division of the trigeminal nerve. • The taste fibers travel in the chorda tympani nerve ...
... Sensory Innervation of the Mouth • Roof: The greater palatine and nasopalatine nerves from the maxillary division of the trigeminal nerve • Floor: The lingual nerve (common sensation), a branch of the mandibular division of the trigeminal nerve. • The taste fibers travel in the chorda tympani nerve ...
Cell membrane
The cell membrane (also known as the plasma membrane or cytoplasmic membrane) is a biological membrane that separates the interior of all cells from the outside environment. The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells. The basic function of the cell membrane is to protect the cell from its surroundings. It consists of the phospholipid bilayer with embedded proteins. Cell membranes are involved in a variety of cellular processes such as cell adhesion, ion conductivity and cell signalling and serve as the attachment surface for several extracellular structures, including the cell wall, glycocalyx, and intracellular cytoskeleton. Cell membranes can be artificially reassembled.