Connective tissue elements. During development of both exocrine
... accumulate in the apical end of the cell and push the nucleus and most of the remaining cytoplasm toward the base. Thus, the cell assumes a goblet shape. The mucin droplets become closely packed but remain membrane-bounded and separate until they escape by exocytosis from the apical end of the cell. ...
... accumulate in the apical end of the cell and push the nucleus and most of the remaining cytoplasm toward the base. Thus, the cell assumes a goblet shape. The mucin droplets become closely packed but remain membrane-bounded and separate until they escape by exocytosis from the apical end of the cell. ...
Wnt3a-mediated chemorepulsion controls movement
... they are located in the mid-primitive streak, from which they enter the mesoderm bilaterally. Signals controlling the specification of cardiac cells have been well documented; however, migration routes of cardiac progenitors have not been directly observed within the embryo and the factor(s) control ...
... they are located in the mid-primitive streak, from which they enter the mesoderm bilaterally. Signals controlling the specification of cardiac cells have been well documented; however, migration routes of cardiac progenitors have not been directly observed within the embryo and the factor(s) control ...
Digging for the roots of amoeboid motility
... Even deeper insight can be obtained from phylogenetic studies of cell biological processes: It has become clear that suites of proteins involved in a particular structure or function are often maintained or lost in tandem. These observations can define the proteins involved in particular cellular fu ...
... Even deeper insight can be obtained from phylogenetic studies of cell biological processes: It has become clear that suites of proteins involved in a particular structure or function are often maintained or lost in tandem. These observations can define the proteins involved in particular cellular fu ...
SASEC2015 Third Southern African Solar Energy Conference 11 – 13 May 2015
... represented by a diode equation and an equivalent circuit which successfully describes the electrical behaviour of a solar cell [4]. The I-V characteristics of a solar cell or module can be measured using an indoor solar simulator or an outdoor currentvoltage measurement system. The illuminated I-V ...
... represented by a diode equation and an equivalent circuit which successfully describes the electrical behaviour of a solar cell [4]. The I-V characteristics of a solar cell or module can be measured using an indoor solar simulator or an outdoor currentvoltage measurement system. The illuminated I-V ...
Cancer Prevention Strategies That Address the Evolutionary
... the cell, and a drug resistance locus conferred resistance to the drug associated with that locus. All mutations were assumed to be passed on at mitosis, and DNA synthesis was assumed to be mitogenic, so that an increase in the rate of mitosis by definition increased the rate of mutations per unit o ...
... the cell, and a drug resistance locus conferred resistance to the drug associated with that locus. All mutations were assumed to be passed on at mitosis, and DNA synthesis was assumed to be mitogenic, so that an increase in the rate of mitosis by definition increased the rate of mutations per unit o ...
Chapter 4 The Cell Membrane, Cytoskeleton, and Cell
... various components of the cellular architecture must communicate and interact for the cell to carry out the processes of life. At a conference where most participants do not know one another, name tags are often used to identify people. All cells also have name tags in the form of carbohydrates, lip ...
... various components of the cellular architecture must communicate and interact for the cell to carry out the processes of life. At a conference where most participants do not know one another, name tags are often used to identify people. All cells also have name tags in the form of carbohydrates, lip ...
- University of East Anglia
... they are located in the mid-primitive streak, from which they enter the mesoderm bilaterally. Signals controlling the specification of cardiac cells have been well documented; however, migration routes of cardiac progenitors have not been directly observed within the embryo and the factor(s) control ...
... they are located in the mid-primitive streak, from which they enter the mesoderm bilaterally. Signals controlling the specification of cardiac cells have been well documented; however, migration routes of cardiac progenitors have not been directly observed within the embryo and the factor(s) control ...
Origin of Cancer: An Information, Energy, and Matter Disease
... carcinogens including chloroform and p-dichlorobenzene that provoke cancer formation (Mally and Chipman, 2002; Duesberg et al., 2011; Seyfried, 2015). However, we saw in the last decade the renaissance of old (Hansemann, 1892; Boveri, 1914; Duesberg, 2005; Duesberg et al., 2011; Seyfried, 2015) and ...
... carcinogens including chloroform and p-dichlorobenzene that provoke cancer formation (Mally and Chipman, 2002; Duesberg et al., 2011; Seyfried, 2015). However, we saw in the last decade the renaissance of old (Hansemann, 1892; Boveri, 1914; Duesberg, 2005; Duesberg et al., 2011; Seyfried, 2015) and ...
The World of Cells Kinds of Cells Tour of a Eukaryotic Cell Transport
... use of stains that bind to specific molecular targets. This approach has been used in the analysis of tissue samples, or histology, for many years and has been improved dramatically with the use of antibiotics that bind to very specific molecular structures. This process, called immunocytochemistry, u ...
... use of stains that bind to specific molecular targets. This approach has been used in the analysis of tissue samples, or histology, for many years and has been improved dramatically with the use of antibiotics that bind to very specific molecular structures. This process, called immunocytochemistry, u ...
Regulatory roles of cyclin dependent kinase phosphorylation in cell
... Cdc2 Y15 phosphorylation is regulated by the checkpoint, there must be several regulatory inputs affecting both the major and the minor enzymes that act on Cdc2 Y15. ...
... Cdc2 Y15 phosphorylation is regulated by the checkpoint, there must be several regulatory inputs affecting both the major and the minor enzymes that act on Cdc2 Y15. ...
Aurintricarboxylic Acid Rescues PC12 Cells and Sympathetic
... mg/ml final concentration in the extraction buffer, and the samples were incubated for 2 h at 37°C, which led to complete digestion of the RNA as seen by agarose gel electrophoresis) before determination of DNA concentration and electrophoresis of equal amounts of DNA per sample . Total PC12 cell DN ...
... mg/ml final concentration in the extraction buffer, and the samples were incubated for 2 h at 37°C, which led to complete digestion of the RNA as seen by agarose gel electrophoresis) before determination of DNA concentration and electrophoresis of equal amounts of DNA per sample . Total PC12 cell DN ...
BACTERIA
... A hard, protective case that forms around the DNA of the bacteria cell during unfavorable growth conditions. Spores allow bacteria to survive harsh conditions. (extreme heat, lack of moisture, etc…) ...
... A hard, protective case that forms around the DNA of the bacteria cell during unfavorable growth conditions. Spores allow bacteria to survive harsh conditions. (extreme heat, lack of moisture, etc…) ...
Biodiversity
... • Red Algae - This group contains most of Earth’s seaweeds. They hold chlorophyll and a red pigment that gives them there color. They live in marine waters. • Brown Algae - They live in cooler climates. They contain chlorophyll and a yellowish-brown pigment that gives it its color. The color they ha ...
... • Red Algae - This group contains most of Earth’s seaweeds. They hold chlorophyll and a red pigment that gives them there color. They live in marine waters. • Brown Algae - They live in cooler climates. They contain chlorophyll and a yellowish-brown pigment that gives it its color. The color they ha ...
Chewing the fat on natural killer T cell development
... convincing evidence that this LSD did not cause a general disruption of glycolipid processing. Furthermore, whereas Gadola et al. showed that α-galactosidase (Fabry) mutant mice had impaired NKT cell development (consistent with an earlier report that claimed reduced NKT cell numbers in the spleen [ ...
... convincing evidence that this LSD did not cause a general disruption of glycolipid processing. Furthermore, whereas Gadola et al. showed that α-galactosidase (Fabry) mutant mice had impaired NKT cell development (consistent with an earlier report that claimed reduced NKT cell numbers in the spleen [ ...
How signaling modalities link oogenesis to
... steroidogenic capacity • Acquire ovulation competency for both the mural and cumulus compartments ...
... steroidogenic capacity • Acquire ovulation competency for both the mural and cumulus compartments ...
Intrusive growth of flax phloem fibers is of intercalary type
... stem tip with 10 leaf primordia (o). Distances between successive leaves on section are depicted in the table in this panel and show the length increase in micrometers (lm). Note that the distance between leaves increases 20-fold. Fig. 2 Longitudinal sections of a flax stem showing an area with coor ...
... stem tip with 10 leaf primordia (o). Distances between successive leaves on section are depicted in the table in this panel and show the length increase in micrometers (lm). Note that the distance between leaves increases 20-fold. Fig. 2 Longitudinal sections of a flax stem showing an area with coor ...
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... However, in an electrolytic cell, an external voltage or EMF is applied to make the electrons flow in the opposite direction in a single electrolyte solution or pure liquid. Note that this application of voltage will reverse the sites of oxidation and reduction leading to the occurrence of non-spont ...
... However, in an electrolytic cell, an external voltage or EMF is applied to make the electrons flow in the opposite direction in a single electrolyte solution or pure liquid. Note that this application of voltage will reverse the sites of oxidation and reduction leading to the occurrence of non-spont ...
ELECTRON MICROSCOPY STUDY OF HARDBOARDS1 Lidija
... dark, granular material scattered between the cells (Fig. 1). We observed that some cells did not come in contact again and that voids existed both in high- and medium-density boards. Occasionally the voids reached a considerable size, even in high-density boards (Fig. 2). Some cells, particularly f ...
... dark, granular material scattered between the cells (Fig. 1). We observed that some cells did not come in contact again and that voids existed both in high- and medium-density boards. Occasionally the voids reached a considerable size, even in high-density boards (Fig. 2). Some cells, particularly f ...
BACTERIA CLASSIFICATION DOMAIN ARCHAEA DOMAIN
... chromosome and rings of DNA called plasmids. • Ribosomes are present to help in protein formation. • Many disease causing bacteria have a thick outer slime capsule for protection. • Many bacteria have small hair-like pili to attach to other cells. ...
... chromosome and rings of DNA called plasmids. • Ribosomes are present to help in protein formation. • Many disease causing bacteria have a thick outer slime capsule for protection. • Many bacteria have small hair-like pili to attach to other cells. ...
On diamond surface properties and interactions with neurons.
... in our experiments, the NCD surface topography plays a dominant role with respect to surface chemistry [32] [33], as corroborated also by the fact that cell adhesion and proliferation on H-terminated NCD is similar to those measured on the same samples with clean or UV-treated surfaces, statistical ...
... in our experiments, the NCD surface topography plays a dominant role with respect to surface chemistry [32] [33], as corroborated also by the fact that cell adhesion and proliferation on H-terminated NCD is similar to those measured on the same samples with clean or UV-treated surfaces, statistical ...
Cell types
... Trichomes are very active cells. In stamen hairs of Tradescantia, it is easy to see this activity. The cellular components move around the cell in strands of cytoplasm. The cytoplasm is in strands that move around the vacuole near the outside of the cell along the cell wall. ...
... Trichomes are very active cells. In stamen hairs of Tradescantia, it is easy to see this activity. The cellular components move around the cell in strands of cytoplasm. The cytoplasm is in strands that move around the vacuole near the outside of the cell along the cell wall. ...
Extracellular Mg concentration and Ca blockers modulate the initial
... APCs and Th2 lymphocytes, (iii) proliferation of Th2 cells in co-culture systems was significantly inhibited by calcium antagonists independently from extracellular magnesium concentrations. Our results suggest that alterations of magnesium and calcium homeostasis impact on some crucial steps of the ...
... APCs and Th2 lymphocytes, (iii) proliferation of Th2 cells in co-culture systems was significantly inhibited by calcium antagonists independently from extracellular magnesium concentrations. Our results suggest that alterations of magnesium and calcium homeostasis impact on some crucial steps of the ...
Mitosis
Mitosis is a part of the cell cycle in which chromosomes in a cell nucleus are separated into two identical sets of chromosomes, each in its own nucleus. In general, mitosis (division of the nucleus) is often followed by cytokinesis, which divides the cytoplasm, organelles and cell membrane into two new cells containing roughly equal shares of these cellular components. Mitosis and cytokinesis together define the mitotic (M) phase of an animal cell cycle—the division of the mother cell into two daughter cells, genetically identical to each other and to their parent cell.The process of mitosis is divided into stages corresponding to the completion of one set of activities and the start of the next. These stages are prophase, prometaphase, metaphase, anaphase, and telophase. During mitosis, the chromosomes, which have already duplicated, condense and attach to fibers that pull one copy of each chromosome to opposite sides of the cell. The result is two genetically identical daughter nuclei. The cell may then divide by cytokinesis to produce two daughter cells. Producing three or more daughter cells instead of normal two is a mitotic error called tripolar mitosis or multipolar mitosis (direct cell triplication / multiplication). Other errors during mitosis can induce apoptosis (programmed cell death) or cause mutations. Certain types of cancer can arise from such mutations.Mitosis occurs only in eukaryotic cells and the process varies in different organisms. For example, animals undergo an ""open"" mitosis, where the nuclear envelope breaks down before the chromosomes separate, while fungi undergo a ""closed"" mitosis, where chromosomes divide within an intact cell nucleus. Furthermore, most animal cells undergo a shape change, known as mitotic cell rounding, to adopt a near spherical morphology at the start of mitosis. Prokaryotic cells, which lack a nucleus, divide by a different process called binary fission.