Full Text - Biochemical Society Transactions
... A large research effort has been spent over the last 15 years into understanding the function of plant aquaporins, in particular with relation to their structural features, solute specificity and role in water balance regulation (for recent comprehensive reviews of plant aquaporin functions see [3,4 ...
... A large research effort has been spent over the last 15 years into understanding the function of plant aquaporins, in particular with relation to their structural features, solute specificity and role in water balance regulation (for recent comprehensive reviews of plant aquaporin functions see [3,4 ...
THE PLAY ABOUT A PLANT CELL, AN ANIMAL CELL, AND A
... holding. Then they put it in their bags and start bouncing around) Oxy: Ok, so the vacuoles are the storage units for food, water, and trash. Cell Membrane: They sure are. Oxy: When I was at the plant cell there was only one really big vacuole and it was mainly for water. Cell Membrane: Ya, we are l ...
... holding. Then they put it in their bags and start bouncing around) Oxy: Ok, so the vacuoles are the storage units for food, water, and trash. Cell Membrane: They sure are. Oxy: When I was at the plant cell there was only one really big vacuole and it was mainly for water. Cell Membrane: Ya, we are l ...
Simulation of Glucose Diffusion in a Cylindrical Cell
... supplied, but might require a membrane-bounded protein. Active transport requires a membrane bound protein and cellular energy(ATP). Diffusion is the process by which the collisions between molecules cause them to continually spread apart from each other. Molecules are constantly moving. They move i ...
... supplied, but might require a membrane-bounded protein. Active transport requires a membrane bound protein and cellular energy(ATP). Diffusion is the process by which the collisions between molecules cause them to continually spread apart from each other. Molecules are constantly moving. They move i ...
CELL: THE UNIT OF LIFE
... CHROMOSOME: The nucleus of a normal or non dividing cell has a loosened indistinct network of nucleoprotein fibers called chromatin (coined by Flemming). During cell division the chromatin condenses to form distinctly visible chromosomes. Discovery: The term chromosome (chroma – colour, soma – body) ...
... CHROMOSOME: The nucleus of a normal or non dividing cell has a loosened indistinct network of nucleoprotein fibers called chromatin (coined by Flemming). During cell division the chromatin condenses to form distinctly visible chromosomes. Discovery: The term chromosome (chroma – colour, soma – body) ...
7.2 Cell Structure
... What organelles help make and transport proteins? Proteins are assembled on ribosomes. Proteins made on the rough endoplasmic reticulum include those that will be released, or secreted, from the cell as well as many membrane proteins and proteins destined for lysosomes and other specialized location ...
... What organelles help make and transport proteins? Proteins are assembled on ribosomes. Proteins made on the rough endoplasmic reticulum include those that will be released, or secreted, from the cell as well as many membrane proteins and proteins destined for lysosomes and other specialized location ...
PDF - Walter Lab
... from assembling into cortical actin patches (Fig. 4a), thus indicating that the Lat A treatment was effective. In contrast to untreated cells, however, FM4-64 foci in Lat-A-treated cells were not consumed even at late time points. Together, these results show that the formation of FM4-64 foci at the ...
... from assembling into cortical actin patches (Fig. 4a), thus indicating that the Lat A treatment was effective. In contrast to untreated cells, however, FM4-64 foci in Lat-A-treated cells were not consumed even at late time points. Together, these results show that the formation of FM4-64 foci at the ...
PPT3 - Ycmou
... To maintain these positions in the tissue, there must be some mechanical support to be provided to each cell so that they would not move from their position in the tissue. The protein filaments which provide these mechanical strength and support to each cell in the tissue are intermediate filaments. ...
... To maintain these positions in the tissue, there must be some mechanical support to be provided to each cell so that they would not move from their position in the tissue. The protein filaments which provide these mechanical strength and support to each cell in the tissue are intermediate filaments. ...
9700/04 - StudyGuide.PK
... If you have been given a label, look at the details. If any details are incorrect or missing, please fill in your correct details in the space given at the top of this page. ...
... If you have been given a label, look at the details. If any details are incorrect or missing, please fill in your correct details in the space given at the top of this page. ...
A Smooth Muscle-specific Monoclonal Antibody Recognizes Smooth
... Tissue Culture of Rat Aortic Smooth Muscle Cells: Aortic medial cells were prepared from 5-mo-old Sprague-Dawley male rats (Tyler Laboratories, Bellevue, WA). The aortic smooth muscle preparation was obtained from three or four thoracic aorta segments. Each aorta was opened and the endothelium was s ...
... Tissue Culture of Rat Aortic Smooth Muscle Cells: Aortic medial cells were prepared from 5-mo-old Sprague-Dawley male rats (Tyler Laboratories, Bellevue, WA). The aortic smooth muscle preparation was obtained from three or four thoracic aorta segments. Each aorta was opened and the endothelium was s ...
Assembly of the phragmoplast microtubule array in plant cells Bo Liu
... microtubule (MT)‐based structure, which is known as a phragmoplast. The phragmoplast is centrifugally expanded, which appears to be mediated by MT turnover involving the depolymerization of MTs and polymerization of tubulins around the midzone of the phragmoplast. In tobacco and Arabidopsis, we h ...
... microtubule (MT)‐based structure, which is known as a phragmoplast. The phragmoplast is centrifugally expanded, which appears to be mediated by MT turnover involving the depolymerization of MTs and polymerization of tubulins around the midzone of the phragmoplast. In tobacco and Arabidopsis, we h ...
S-layer and cytoplasmic membrane – exceptions from the typical
... Microorganisms and especially archaea can be found in almost any kind of extreme environment, although they are not limited to them: high temperature, high acidity, high pressure, anoxic, no organic substrates. In those habitats, various species of hyperthermophilic or more generally extremophilic a ...
... Microorganisms and especially archaea can be found in almost any kind of extreme environment, although they are not limited to them: high temperature, high acidity, high pressure, anoxic, no organic substrates. In those habitats, various species of hyperthermophilic or more generally extremophilic a ...
Full Text - Harvard University
... views on lignification found in the literature. Wood chemistry research is typically conducted on conifers, notably Pinus, for which lignification is greatest in the compound primary wall (10). Molecular work emphasizing secondary wall lignification has relied upon the Zinnia leaf model system (12, ...
... views on lignification found in the literature. Wood chemistry research is typically conducted on conifers, notably Pinus, for which lignification is greatest in the compound primary wall (10). Molecular work emphasizing secondary wall lignification has relied upon the Zinnia leaf model system (12, ...
Plant Cell - WordPress.com
... The shape of the cells also varies considerably. It may be Spherical, Polygonal, Oval, Rectangular, Cylinderical etc. The smallest cell found in bacteria is 0.2 to 50 micron LEARNING EXPERIENCE Teacher explain the different shapes of the cell EVALUATION The smallest cell found in bacteria is ------- ...
... The shape of the cells also varies considerably. It may be Spherical, Polygonal, Oval, Rectangular, Cylinderical etc. The smallest cell found in bacteria is 0.2 to 50 micron LEARNING EXPERIENCE Teacher explain the different shapes of the cell EVALUATION The smallest cell found in bacteria is ------- ...
Mycoplasma
... spontaneously to variants that can replicate in the form of small filterable protoplasmic elements with defective or absent cell walls. These organisms, called L-forms, can also be formed by many species when cell wall synthesis is impaired by antibiotic treatment or high salt concentration. ...
... spontaneously to variants that can replicate in the form of small filterable protoplasmic elements with defective or absent cell walls. These organisms, called L-forms, can also be formed by many species when cell wall synthesis is impaired by antibiotic treatment or high salt concentration. ...
+TIPs and Microtubule Regulation. The Beginning of the Plus End in
... radial structures that function in intracellular transport and cytoplasmic organization. In mitosis, MTs reassemble into a spindle that mechanically segregates chromosomes to daughter nuclei and participates in division plane specification. MT arrays are organized quite differently in plants (Wasten ...
... radial structures that function in intracellular transport and cytoplasmic organization. In mitosis, MTs reassemble into a spindle that mechanically segregates chromosomes to daughter nuclei and participates in division plane specification. MT arrays are organized quite differently in plants (Wasten ...
7-3 Cell Boundaries - River Dell Regional School District
... bilayer. Carbohydrates attached to the proteins act like chemical identification cards allowing cells to identify each other. Some proteins form channels and pumps to help move material into and out of the cell ...
... bilayer. Carbohydrates attached to the proteins act like chemical identification cards allowing cells to identify each other. Some proteins form channels and pumps to help move material into and out of the cell ...
Nucleocytoplasmic transport
... cytoplasmic binding are relevant to the establishment of intracellular distributions. In these cases, nucleocytoplasmic transport is not simply a matter of crossing a barrier (the nuclear envelope) through specific channels (pore-complexes) between two aqueous compartments. It is more likely to be a ...
... cytoplasmic binding are relevant to the establishment of intracellular distributions. In these cases, nucleocytoplasmic transport is not simply a matter of crossing a barrier (the nuclear envelope) through specific channels (pore-complexes) between two aqueous compartments. It is more likely to be a ...
The Cell
... change energy from one form to another • Mitochondria are the sites of cellular respiration, a metabolic process that generates ATP • Chloroplasts, found in plants and algae, are the sites of photosynthesis • Peroxisomes are oxidative organelles ...
... change energy from one form to another • Mitochondria are the sites of cellular respiration, a metabolic process that generates ATP • Chloroplasts, found in plants and algae, are the sites of photosynthesis • Peroxisomes are oxidative organelles ...
Chapter 6 The Cell
... change energy from one form to another • Mitochondria are the sites of cellular respiration, a metabolic process that generates ATP • Chloroplasts, found in plants and algae, are the sites of photosynthesis ...
... change energy from one form to another • Mitochondria are the sites of cellular respiration, a metabolic process that generates ATP • Chloroplasts, found in plants and algae, are the sites of photosynthesis ...
Chapter 6
... change energy from one form to another • Mitochondria are the sites of cellular respiration, a metabolic process that generates ATP • Chloroplasts, found in plants and algae, are the sites of photosynthesis • Peroxisomes are oxidative organelles ...
... change energy from one form to another • Mitochondria are the sites of cellular respiration, a metabolic process that generates ATP • Chloroplasts, found in plants and algae, are the sites of photosynthesis • Peroxisomes are oxidative organelles ...
Chapter 6
... change energy from one form to another • Mitochondria are the sites of cellular respiration, a metabolic process that generates ATP • Chloroplasts, found in plants and algae, are the sites of photosynthesis ...
... change energy from one form to another • Mitochondria are the sites of cellular respiration, a metabolic process that generates ATP • Chloroplasts, found in plants and algae, are the sites of photosynthesis ...
Diffusion and Membranes
... some particles are small enough to fit through pores in the membrane some are helped through large molecules restricted molecules such as water, carbon dioxide, oxygen can pass through easily glucose and ions can move through channels with the assistance of transport proteins ...
... some particles are small enough to fit through pores in the membrane some are helped through large molecules restricted molecules such as water, carbon dioxide, oxygen can pass through easily glucose and ions can move through channels with the assistance of transport proteins ...
Unicellular Organisms
... • Relatively large • Common in pond scum and freshwater • Contain two nuclei (macro and micro) ...
... • Relatively large • Common in pond scum and freshwater • Contain two nuclei (macro and micro) ...
The septins: roles in cytokinesis and other processes Mark S
... Filaments similar to the S. cerevisiae neck filaments have also been seen at the mother-bud neck and near the bases of hyphae in the dimorphie yeast C. a/b/cans [22], and it is likely, although not yet demonstrated, that these filaments contain the C. albicans septins [10]. However, C. albicans is m ...
... Filaments similar to the S. cerevisiae neck filaments have also been seen at the mother-bud neck and near the bases of hyphae in the dimorphie yeast C. a/b/cans [22], and it is likely, although not yet demonstrated, that these filaments contain the C. albicans septins [10]. However, C. albicans is m ...
Cytoplasmic streaming
Cytoplasmic streaming, also called protoplasmic streaming and cyclosis, is the directed flow of cytosol (the liquid component of the cytoplasm) and organelles around large fungal and plant cells through the mediation of actin. This movement aids in the delivery of organelles, nutrients, metabolites, genetic information, and other materials to all parts of the cell. Cytoplasmic streaming occurs along actin filaments in the cytoskeleton of the cell.Cytoplasmic streaming was first discovered in the 1830s. The scientific breakthrough assisted scientists in developing an understanding of the different roles of cells and how they function as the basic operating systems of life.This process occurs through the operation of motor proteins called myosins.These proteins use energy of adenosine triphosphate (ATP) to act as a molecular motor, which slides along actin filaments. This works in a manner that tows the organelles and other cytoplasmic contents in the same direction. Myosin proteins consist of two conjoined proteins. If one protein remains attached to the substrate, the substance acted upon by the protein, such as a microfilament, has the ability to move organelles through the cytoplasm.The green alga genus Chara and other genera in the Division Charophyta, such as Coleochaete, are thought to be the closest relatives of land plants. These haploid organisms contain some of the largest plant cells on earth, a single cell of which can reach up to 10 cm in length. The large size of these cells demands an efficient means to distribute resources, which is enabled via cytoplasmic streaming.Cytoplasmic streaming is strongly dependent upon intracellular pH and temperature. It has been observed that the effect of temperature on cytoplasmic streaming created linear variance and dependence at different high temperatures in comparison to low temperatures. This process is complicated, with temperature alterations in the system increasing its efficiency, with other factors such as the transport of ions across the membrane being simultaneously affected. This is due to cells homeostasis depending upon active transport which may be affected at some critical temperatures.In plant cells, chloroplasts may be moved around with the stream, possibly to a position of optimum light absorption for photosynthesis. The rate of motion is usually affected by light exposure, temperature, and pH levels.In reference to pH, because actin and myosin are both proteins, strong dependence on pH is expected. The optimal pH at which cytoplasmic streaming is highest, is achieved at neutral pH and decreases at both low and high pH.The flow of cytoplasm may be stopped by:Adding Lugol's iodine solutionAdding Cytochalasin D (dissolved in dimethyl sulfoxide)↑ ↑ ↑ ↑ ↑ ↑