A tour of the cell - The Open University
... The subcellular components can then be recovered by centrifugation. The cell homogenate is dispensed into centrifuge tubes which are placed into a rotating holder (known as a rotor) that fits into the centrifuge. As the rotor turns, particles suspended in the homogenate migrate towards the bottom of ...
... The subcellular components can then be recovered by centrifugation. The cell homogenate is dispensed into centrifuge tubes which are placed into a rotating holder (known as a rotor) that fits into the centrifuge. As the rotor turns, particles suspended in the homogenate migrate towards the bottom of ...
vesicle
... they do the same, thus creating a wave of energy until the pulse has made its way across an organ or specific area of neurons. Nerve impulses are essential for the propagation of signals. These signals are sent to and from the central nervous system via efferent and afferent neurons in order to coor ...
... they do the same, thus creating a wave of energy until the pulse has made its way across an organ or specific area of neurons. Nerve impulses are essential for the propagation of signals. These signals are sent to and from the central nervous system via efferent and afferent neurons in order to coor ...
Developmental control of a G1-S transcriptional program in Drosophila
... In situ hybridizations using digoxigenin-labeled DNA or RNA probes were performed as described (Tautz and Pfeifle, 1989; Lehner and O’Farrell, 1990b) except that xylene treatment was omitted. Digoxigenin-labeled DNA was made by either of two methods; random priming (Lehner and O’Farrell, 1990b) or i ...
... In situ hybridizations using digoxigenin-labeled DNA or RNA probes were performed as described (Tautz and Pfeifle, 1989; Lehner and O’Farrell, 1990b) except that xylene treatment was omitted. Digoxigenin-labeled DNA was made by either of two methods; random priming (Lehner and O’Farrell, 1990b) or i ...
Biology 376 Animal Development
... Each of us was once a single cell. What happened after that remains one of the most amazing processes in the universe. ...
... Each of us was once a single cell. What happened after that remains one of the most amazing processes in the universe. ...
POP-1 and Anterior–Posterior Fate Decisions in
... in C. elegans has sequence similarity to Tcf-1 and acts downstream in the Wnt-like pathway. A polyclonal antiserum raised against the POP-1 protein shows a slightly lower level of staining in the E nucleus than in the MS nucleus in most, but not all, C. elegans embryos (Lin et al., 1995). We describ ...
... in C. elegans has sequence similarity to Tcf-1 and acts downstream in the Wnt-like pathway. A polyclonal antiserum raised against the POP-1 protein shows a slightly lower level of staining in the E nucleus than in the MS nucleus in most, but not all, C. elegans embryos (Lin et al., 1995). We describ ...
Structure, expression and chromosomal localization of human p80
... Coiled bodies (CBs) are non-capsular nuclear bodies with a diameter of 0 . 3 - V m and appear to be composed of coiled fibrils. Human autoantibodies to CBs recognize an 80-kD nuclear protein highly enriched in CBs, and this protein has been named p80-coilin. CBs are known to assemble and disassemble ...
... Coiled bodies (CBs) are non-capsular nuclear bodies with a diameter of 0 . 3 - V m and appear to be composed of coiled fibrils. Human autoantibodies to CBs recognize an 80-kD nuclear protein highly enriched in CBs, and this protein has been named p80-coilin. CBs are known to assemble and disassemble ...
Fulltext PDF - Indian Academy of Sciences
... membrane compartment are regulated by numerous protein factors that work in an organized and specific fashion (Mellman 1996; Harris et al. 2001); Rab proteins are one of the key groups of these proteins. The Rab family includes more than 30 members that regulate vesicular traffic between specific co ...
... membrane compartment are regulated by numerous protein factors that work in an organized and specific fashion (Mellman 1996; Harris et al. 2001); Rab proteins are one of the key groups of these proteins. The Rab family includes more than 30 members that regulate vesicular traffic between specific co ...
Endocytosis unplugged: multiple ways to enter the cell
... it is manipulated by pathogens in a given context. Macropinocytosis – cell drinking Macropinocytosis is another process whereby a relatively large amount of the fluid phase is engulfed with respect to the cell volume, in some instances along with particles such as bacteria. First described by Lewis ...
... it is manipulated by pathogens in a given context. Macropinocytosis – cell drinking Macropinocytosis is another process whereby a relatively large amount of the fluid phase is engulfed with respect to the cell volume, in some instances along with particles such as bacteria. First described by Lewis ...
Plant Phosphoglycerolipids: The Gatekeepers of Vascular Cell
... Plant Phosphoglycerolipids: The Gatekeepers of Vascular Cell Differentiation Bojan Gujas and Antia Rodriguez-Villalon * Vascular Development Group, Department of Biology, Institute of Agricultural Science, Swiss Federal Institute of Technology in Zürich, Zürich, Switzerland ...
... Plant Phosphoglycerolipids: The Gatekeepers of Vascular Cell Differentiation Bojan Gujas and Antia Rodriguez-Villalon * Vascular Development Group, Department of Biology, Institute of Agricultural Science, Swiss Federal Institute of Technology in Zürich, Zürich, Switzerland ...
Ophiobolin A from Bipolaris oryzae Perturbs Motility and Membrane
... the genera Bipolaris, Cochliobolus, Drechslera, Cephalosporium and Aspergillus [9]. Their structure is characterized by a specific tri- or tetracyclic ring system. More than 30 of these secondary metabolites have been described to date and assigned into several subgroups [9–13]. These compounds show ...
... the genera Bipolaris, Cochliobolus, Drechslera, Cephalosporium and Aspergillus [9]. Their structure is characterized by a specific tri- or tetracyclic ring system. More than 30 of these secondary metabolites have been described to date and assigned into several subgroups [9–13]. These compounds show ...
Historical Background: In 1838, Schwann and - Moodle
... metabolism of the plant, they are in many cases of great importance for the plant to survive in its natural environment. Man also uses these natural products as dyestuffs, food additives, cosmetics or medicines. But obtaining sufficient supplies of appropriate plant materials for the isolation of se ...
... metabolism of the plant, they are in many cases of great importance for the plant to survive in its natural environment. Man also uses these natural products as dyestuffs, food additives, cosmetics or medicines. But obtaining sufficient supplies of appropriate plant materials for the isolation of se ...
Gene Section MSF (MLL septin-like fusion) Atlas of Genetics and Cytogenetics
... based on ubiquitous adult and fetal transcript expression, although individual isoforms may have tissue specific expression. ...
... based on ubiquitous adult and fetal transcript expression, although individual isoforms may have tissue specific expression. ...
In vivo interactions of higher plant Golgi matrix proteins by
... also form a template for reformation of the Golgi ribbon after dispersal during nuclear division. It is also thought that these three proteins form a complex required for maintenance of the Golgi compartments nearest to the ER. Depletion of another Golgin, Golgin-84 results in the fragmentation of t ...
... also form a template for reformation of the Golgi ribbon after dispersal during nuclear division. It is also thought that these three proteins form a complex required for maintenance of the Golgi compartments nearest to the ER. Depletion of another Golgin, Golgin-84 results in the fragmentation of t ...
2 StainsInMicro
... against the white background. While special types of light microscopy have been invented to create better contrast stains are more frequently used to visualize cells in the lab. Stains or dyes colorize the cells or the background so they can be more clearly observed. The prokaryotic cell wall and me ...
... against the white background. While special types of light microscopy have been invented to create better contrast stains are more frequently used to visualize cells in the lab. Stains or dyes colorize the cells or the background so they can be more clearly observed. The prokaryotic cell wall and me ...
Structure of the Reovirus Membrane
... residues in two discontinuous polypeptide-chain segments (279–305 and 515–640). There are five ␣ helices (␣F–␣J) and a short  strand (25). Helices F, G, and J are an antiparallel bundle linking domains II and IV. Helices H and I and the exposed bridge between them project laterally, forming a crad ...
... residues in two discontinuous polypeptide-chain segments (279–305 and 515–640). There are five ␣ helices (␣F–␣J) and a short  strand (25). Helices F, G, and J are an antiparallel bundle linking domains II and IV. Helices H and I and the exposed bridge between them project laterally, forming a crad ...
A Cell is Like A (100 points) You will compare an animal or plant
... ribosomes, cytoplasm, mitochondria, endoplasmic reticulum, Golgi body, cell membrane, chromosomes, lysosome, vacuole. o Plant Cell Projects MUST include the following 12 organelles: nucleus, ribosomes, cytoplasm, mitochondria, endoplasmic reticulum, Golgi body, cell membrane, chromosomes, lysosome, ...
... ribosomes, cytoplasm, mitochondria, endoplasmic reticulum, Golgi body, cell membrane, chromosomes, lysosome, vacuole. o Plant Cell Projects MUST include the following 12 organelles: nucleus, ribosomes, cytoplasm, mitochondria, endoplasmic reticulum, Golgi body, cell membrane, chromosomes, lysosome, ...
Mader 11 ch 5 Membrane Structure and Function
... Junction Protein Junction Proteins: Tight junctions join cells so that a tissue can fulfill a function, as when a tissue pinches off the neural tube during development. Without this cooperation between cells, an animal embryo would have no nervous system. Mills AP Biology 2012 ...
... Junction Protein Junction Proteins: Tight junctions join cells so that a tissue can fulfill a function, as when a tissue pinches off the neural tube during development. Without this cooperation between cells, an animal embryo would have no nervous system. Mills AP Biology 2012 ...
The FbaB-type fibronectin-binding protein of Streptococcus pyogenes
... the membranes of early endosomes (Ellson et al., 2001). Recognition of membrane incorporated PtdIns(3)P by FYVE and PX domain-containing sorting proteins is an essential event for endosomal fusion and subsequent vesicular trafficking into lysosomes (Vieira et al., 2001). Infection of PX-DsRed/TagRFP ...
... the membranes of early endosomes (Ellson et al., 2001). Recognition of membrane incorporated PtdIns(3)P by FYVE and PX domain-containing sorting proteins is an essential event for endosomal fusion and subsequent vesicular trafficking into lysosomes (Vieira et al., 2001). Infection of PX-DsRed/TagRFP ...
Physical and Chemical Basis of Cytoplasmic Streaming
... carded along with the streaming, is exceedingly great comparedwith ordinary cytoplasmic streaming in plant calls (71). Moreover,the direction streaming alternates according to a rhythmic pattern. There is good evidence to show that the flow of endoplasmis caused passively by a local difference in th ...
... carded along with the streaming, is exceedingly great comparedwith ordinary cytoplasmic streaming in plant calls (71). Moreover,the direction streaming alternates according to a rhythmic pattern. There is good evidence to show that the flow of endoplasmis caused passively by a local difference in th ...
Quantitative Changes in Microtubule Distribution Correlate with
... arranged into radial arrays with respect to the stomatal aperture. These arrays are dynamic and the number of readily detectable radial-array elements declines when stomata close (Eisinger et al., 2012). Array integrity or turnover appears to affect guard cell function; oryzalin (0.1 mM) disrupts mi ...
... arranged into radial arrays with respect to the stomatal aperture. These arrays are dynamic and the number of readily detectable radial-array elements declines when stomata close (Eisinger et al., 2012). Array integrity or turnover appears to affect guard cell function; oryzalin (0.1 mM) disrupts mi ...
Drosophila immune cell migration and adhesion during embryonic
... Much of the embryonic migration of Drosophila plasmatocytes occurs along paths where their function is required for further development. Plasmatocytes are specified in the anterior mesoderm in the ventral side of the head [20,21]; they then ingress [22] and split into three main routes, two of which ...
... Much of the embryonic migration of Drosophila plasmatocytes occurs along paths where their function is required for further development. Plasmatocytes are specified in the anterior mesoderm in the ventral side of the head [20,21]; they then ingress [22] and split into three main routes, two of which ...
5 | structure and function of plasma membranes
... interaction with its environment (see Table 5.1 for a summary). Cells exclude some substances, take in others, and excrete still others, all in controlled quantities. The plasma membrane must be very flexible to allow certain cells, such as red blood cells and white blood cells, to change shape as t ...
... interaction with its environment (see Table 5.1 for a summary). Cells exclude some substances, take in others, and excrete still others, all in controlled quantities. The plasma membrane must be very flexible to allow certain cells, such as red blood cells and white blood cells, to change shape as t ...
Cytokinesis
Cytokinesis (cyto- + kinesis) is the process during cell division in which the cytoplasm of a single eukaryotic cell is divided to form two daughter cells. It usually initiates during the early stages of mitosis, and sometimes meiosis, splitting a mitotic cell in two, to ensure that chromosome number is maintained from one generation to the next. After cytokinesis two (daughter) cells will be formed that are exact copies of the (parent) original cell. After cytokinesis, each daughter cell is in the interphase portion of the cell cycle. In animal cells, one notable exception to the normal process of cytokinesis is oogenesis (the creation of an ovum in the ovarian follicle of the ovary), where the ovum takes almost all the cytoplasm and organelles, leaving very little for the resulting polar bodies, which then die. Another form of mitosis without cytokinesis occurs in the liver, yielding multinucleate cells. In plant cells, a dividing structure known as the cell plate forms within the centre of the cytoplasm and a new cell wall forms between the two daughter cells.Cytokinesis is distinguished from the prokaryotic process of binary fission.