strontium titanate
... Strontium titanate has the perovskite structure found in many oxides and fluorides of type ABX3. This is the atom packing achieved when the large cation is 1.0 – 1.4Å radius and has 12-fold coordination, while the smaller cation has a radius of 0.45 – 0.75Å, with the coordination of 6. The ideal str ...
... Strontium titanate has the perovskite structure found in many oxides and fluorides of type ABX3. This is the atom packing achieved when the large cation is 1.0 – 1.4Å radius and has 12-fold coordination, while the smaller cation has a radius of 0.45 – 0.75Å, with the coordination of 6. The ideal str ...
Certain Aspects of Cell Lineage and Morphogenesis
... The lethal effect of pole-cell irradiation at the three stages was clearly demonstrated. In each group at least 45 eggs were treated, and the percentage lethalities after 15 hours' embryonic development were as follows: 33 per cent, (irradiation at 1 hour); 57 per cent. (2 hours); 0 per cent. (3 hou ...
... The lethal effect of pole-cell irradiation at the three stages was clearly demonstrated. In each group at least 45 eggs were treated, and the percentage lethalities after 15 hours' embryonic development were as follows: 33 per cent, (irradiation at 1 hour); 57 per cent. (2 hours); 0 per cent. (3 hou ...
Ultrastructural changes in the root tip and leaf cells of Lens culinaris
... of the investigated cells. At higher concentrations, micronuclei were seen in some of the cells and large vacuoles were observed completely filling up the cells (Figure 1). The percentages of altered nuclei, cell walls, amyloplasts, and vacuoles within cells observed from semithin sections were calc ...
... of the investigated cells. At higher concentrations, micronuclei were seen in some of the cells and large vacuoles were observed completely filling up the cells (Figure 1). The percentages of altered nuclei, cell walls, amyloplasts, and vacuoles within cells observed from semithin sections were calc ...
Cytochemical Locslization of Mercury in
... microscope. The formation of the long-chain amido compound draws together separate mercury atoms and this concentration effect gives rise to the electron-opaque granules (Fig. I c, d). Theoretically reactions resulting in precipitates of sufficient density to be seen under the electron microscope ar ...
... microscope. The formation of the long-chain amido compound draws together separate mercury atoms and this concentration effect gives rise to the electron-opaque granules (Fig. I c, d). Theoretically reactions resulting in precipitates of sufficient density to be seen under the electron microscope ar ...
Cotyledon cells of Vigna mungo seedlings use at least two distinct
... Ultrastructural analyses of the cotyledon cells of normally germinated V. mungo seeds were conducted to observe how SG interacts with vacuoles to be degraded by -amylase. A cotyledon of a day 3 seedling is composed of heterologous cells with respect to the amount of reserves in the cells. Cells pos ...
... Ultrastructural analyses of the cotyledon cells of normally germinated V. mungo seeds were conducted to observe how SG interacts with vacuoles to be degraded by -amylase. A cotyledon of a day 3 seedling is composed of heterologous cells with respect to the amount of reserves in the cells. Cells pos ...
mRNA delivery for
... of ES-cell genes that are not completely silenced in somatic cells. One such gene, Hmga2, encodes a small chromatin-associated protein that cooperates with other factors to regulate gene expression. Hmga2 is highly expressed in embryonic stem cells [40], young neural stem cells [41], and many human ...
... of ES-cell genes that are not completely silenced in somatic cells. One such gene, Hmga2, encodes a small chromatin-associated protein that cooperates with other factors to regulate gene expression. Hmga2 is highly expressed in embryonic stem cells [40], young neural stem cells [41], and many human ...
Cell movements during epiboly and gastrulation in
... colored dyes, two sibling blastomeres; one underlying the other at the 64-cell stage (Fig. 2). The deeper cell generated a clone located deep in the DEL of the midblastula, and immediately underlying the clone originating from its superficial sib, as confirmed by direct inspection (Fig. 3A). DEL cel ...
... colored dyes, two sibling blastomeres; one underlying the other at the 64-cell stage (Fig. 2). The deeper cell generated a clone located deep in the DEL of the midblastula, and immediately underlying the clone originating from its superficial sib, as confirmed by direct inspection (Fig. 3A). DEL cel ...
Cotyledon cells of Vigna mungo seedlings use at
... were intact (Fig. 4 B). The electron density of the PSV became low when the degradation of proteins started (Fig. 4 C). In the same cells, a membranous structure surrounding SGs was observed, and some regions with low electron density (LED) were found (Fig. 4 C). The LED area around the SG was enlar ...
... were intact (Fig. 4 B). The electron density of the PSV became low when the degradation of proteins started (Fig. 4 C). In the same cells, a membranous structure surrounding SGs was observed, and some regions with low electron density (LED) were found (Fig. 4 C). The LED area around the SG was enlar ...
Retinal pigment epithelial cells phagocytosis of T lymphocytes
... and blindness of the Royal College of Surgeons rats which results from a defect of such phagocytosis.17 Yet, RPE phagocytosis capabilities are not limited to ROS, since they are able also to phagocyte latex beads, red blood cells, algae, yeasts, and bacteria.18 However, to our knowledge, nothing was ...
... and blindness of the Royal College of Surgeons rats which results from a defect of such phagocytosis.17 Yet, RPE phagocytosis capabilities are not limited to ROS, since they are able also to phagocyte latex beads, red blood cells, algae, yeasts, and bacteria.18 However, to our knowledge, nothing was ...
Slide 1 - Cloudfront.net
... Turgor Pressure Explained • Turgor pressure is The pressure exerted by water inside the cell by the vacuole against the cell wall. A decrease in turgor pressure causes wilting. ...
... Turgor Pressure Explained • Turgor pressure is The pressure exerted by water inside the cell by the vacuole against the cell wall. A decrease in turgor pressure causes wilting. ...
Labratory Examination Questions
... procedure is similar to DNA isolation, chloroform is used to precipitate proteins. (Generally, both chloroform and phenol can be used to precipitate proteins during DNA and RNA isolation). The RNA pellet is finer than the DNA pellet; therefore centrifugation should be used to collect it. RNA concent ...
... procedure is similar to DNA isolation, chloroform is used to precipitate proteins. (Generally, both chloroform and phenol can be used to precipitate proteins during DNA and RNA isolation). The RNA pellet is finer than the DNA pellet; therefore centrifugation should be used to collect it. RNA concent ...
Receptor-Mediated Endocytosis in Plant Cells
... fluorescence image of the same field showing the location of the fluorescent elicitor (b, d, f, h, j, I, n, p, and r). As seen in the micrographs, soon after addition of the elicitor, sufficient amounts of the ligand accumulated at the cell surface to form a fluorescent outline surrounding each cell ...
... fluorescence image of the same field showing the location of the fluorescent elicitor (b, d, f, h, j, I, n, p, and r). As seen in the micrographs, soon after addition of the elicitor, sufficient amounts of the ligand accumulated at the cell surface to form a fluorescent outline surrounding each cell ...
Presentation
... _________ - a liquid (often water) that other molecules are dissolved in. _______ - the substance that is dissolved in the solvent, such as salt dissolved in water. __________ - a solute dissolved in a solvent. _________________ - a measure of how much solute is dissolved in the solvent (Ex: 5% salt ...
... _________ - a liquid (often water) that other molecules are dissolved in. _______ - the substance that is dissolved in the solvent, such as salt dissolved in water. __________ - a solute dissolved in a solvent. _________________ - a measure of how much solute is dissolved in the solvent (Ex: 5% salt ...
The endoplasmic reticulum exerts control over organelle streaming
... differences in ER streaming velocities between wild type and the rhd3 mutant are markedly different (Fig. 1B). The maximal streaming velocity of the ER in fully expanded rhd3 cells treated with latrunculin B is 0.56 mm/second (Fig. 2C), which is lower than in untreated wild-type (1.55 mm/second) and ...
... differences in ER streaming velocities between wild type and the rhd3 mutant are markedly different (Fig. 1B). The maximal streaming velocity of the ER in fully expanded rhd3 cells treated with latrunculin B is 0.56 mm/second (Fig. 2C), which is lower than in untreated wild-type (1.55 mm/second) and ...
Membrane Topology of the Mammalian CMP
... Construction of Insertion and Deletion Mutants—Mouse CMP-SiaTr, with carboxyl-terminal HA tag and amino-terminal FLAG sequence, respectively, were generated as described previously (5, 6). Using the FLAG-tagged construct as template, overlapping extension polymerase chain reaction (24) was used to g ...
... Construction of Insertion and Deletion Mutants—Mouse CMP-SiaTr, with carboxyl-terminal HA tag and amino-terminal FLAG sequence, respectively, were generated as described previously (5, 6). Using the FLAG-tagged construct as template, overlapping extension polymerase chain reaction (24) was used to g ...
3 Movement of substances across cell membrane 3.1 Cell membrane
... Active transport (主動轉運) is the transport of substances across the cell membrane (38) ______________ a concentration gradient. It involves (39) ______________ proteins. Only substances that fit the (40) _____________ of the carrier proteins can be transported by active transport. It is an (41) ______ ...
... Active transport (主動轉運) is the transport of substances across the cell membrane (38) ______________ a concentration gradient. It involves (39) ______________ proteins. Only substances that fit the (40) _____________ of the carrier proteins can be transported by active transport. It is an (41) ______ ...
Chapter 8: Cellular Transport and the Cell Cycle
... The cells that make up a multicellular organism come in a wide variety of sizes and shapes. Some cells, such as red blood cells, measure only 8 m (micrometers) in diameter. Other cells, such as nerve cells in large animals, can reach lengths of up to 1 m but have small diameters. The cell with the ...
... The cells that make up a multicellular organism come in a wide variety of sizes and shapes. Some cells, such as red blood cells, measure only 8 m (micrometers) in diameter. Other cells, such as nerve cells in large animals, can reach lengths of up to 1 m but have small diameters. The cell with the ...
Dentistry_-_Test_questions_2016
... a. most antigens induce a response from more than one clone of lymphocytes b. a large protein antigen generally can combine with many different antibody molecules c. a hapten can stimulate antibody production but cannot combine with antibody molecules. d. MHC genes play a major role in determining t ...
... a. most antigens induce a response from more than one clone of lymphocytes b. a large protein antigen generally can combine with many different antibody molecules c. a hapten can stimulate antibody production but cannot combine with antibody molecules. d. MHC genes play a major role in determining t ...
FEATURE
... also found that every family or subfamily of plants has its own leaf movement factor that is effective only for plants belonging to its own family. Kameyama et al. (Nature 407:37, 2000) have suggested that the molecular process of bending may be due to decreased actin tyrosine-phosphorylation in the ...
... also found that every family or subfamily of plants has its own leaf movement factor that is effective only for plants belonging to its own family. Kameyama et al. (Nature 407:37, 2000) have suggested that the molecular process of bending may be due to decreased actin tyrosine-phosphorylation in the ...
