A View of the Cell
... Your cells need nutrients such as glucose, amino acids, and lipids to function. It is the job of the plasma membrane, the flexible boundary between the cell and its environment, to allow a steady supply of these nutrients to come into the cell no matter what the external conditions are. However, too ...
... Your cells need nutrients such as glucose, amino acids, and lipids to function. It is the job of the plasma membrane, the flexible boundary between the cell and its environment, to allow a steady supply of these nutrients to come into the cell no matter what the external conditions are. However, too ...
Induction of fungal cell wall stress
... The fungal cell wall is an attractive target for the development of new antifungal agents because it is essential for the viability of fungal cells, and the fungal cell wall has no counterpart in mammalian cells. The fungal cell wall is composed 80-90% of carbohydrates. The main structural polysacch ...
... The fungal cell wall is an attractive target for the development of new antifungal agents because it is essential for the viability of fungal cells, and the fungal cell wall has no counterpart in mammalian cells. The fungal cell wall is composed 80-90% of carbohydrates. The main structural polysacch ...
Protein diffusion in plant cell plasma membranes
... “half times,” are useful for comparing mobilities of different proteins. Interestingly, the fluorescence recovery curve of PM proteins describes the sum of at least two additive mechanisms: the lateral mobility of the protein within the PM, and the exchange of proteins between cytoplasmic vesicles a ...
... “half times,” are useful for comparing mobilities of different proteins. Interestingly, the fluorescence recovery curve of PM proteins describes the sum of at least two additive mechanisms: the lateral mobility of the protein within the PM, and the exchange of proteins between cytoplasmic vesicles a ...
Diffusion through a Membrane
... Molecules are constantly moving. Diffusion occurs when the molecules of a substance move from high concentrations, where there are more molecules, to low concentrations, where there are fewer molecules. Diffusion occurs because collisions between moving molecules cause them to move further apart. Di ...
... Molecules are constantly moving. Diffusion occurs when the molecules of a substance move from high concentrations, where there are more molecules, to low concentrations, where there are fewer molecules. Diffusion occurs because collisions between moving molecules cause them to move further apart. Di ...
video slide - Kealakehe High School
... • The sharp rise in Ca2+ in the egg’s cytosol increases the rates of cellular respiration and protein synthesis by the egg cell • With these rapid changes in metabolism, the egg is said to be activated • Sperm cells do not contribute any materials required for activation. The unfertilized eggs of ma ...
... • The sharp rise in Ca2+ in the egg’s cytosol increases the rates of cellular respiration and protein synthesis by the egg cell • With these rapid changes in metabolism, the egg is said to be activated • Sperm cells do not contribute any materials required for activation. The unfertilized eggs of ma ...
Chapter 8: Cellular Transport and the Cell Cycle
... Surface area-to-volume ratio Another size-limiting factor is the cell’s surface area-to-volume ratio. As a cell’s size increases, its volume increases much faster than its surface area. Picture a cube-shaped cell like those shown in Figure 8.9. The smallest cell has 1 mm sides, a surface area of 6 m ...
... Surface area-to-volume ratio Another size-limiting factor is the cell’s surface area-to-volume ratio. As a cell’s size increases, its volume increases much faster than its surface area. Picture a cube-shaped cell like those shown in Figure 8.9. The smallest cell has 1 mm sides, a surface area of 6 m ...
The role of vacuole in plant cell death
... prevents these typical characteristics, it does not interfere with the production of defense proteins (PR proteins).23 This means that the process of vacuole-mediated cell death is independent of defense-protein production. Considering that VPE appears rapidly at the beginning of the TMV-induced HR ...
... prevents these typical characteristics, it does not interfere with the production of defense proteins (PR proteins).23 This means that the process of vacuole-mediated cell death is independent of defense-protein production. Considering that VPE appears rapidly at the beginning of the TMV-induced HR ...
Chapter 2: Patterns of Associations
... 3. Energy-related organelles Chloroplasts function in photosynthesis in plants and some types of algae Use solar energy to synthesize carbohydrates ...
... 3. Energy-related organelles Chloroplasts function in photosynthesis in plants and some types of algae Use solar energy to synthesize carbohydrates ...
Plasma membrane
... illuminated; out-of-focus fluorescence above and below the plane is subtracted by a computer. A sharp image results, as seen in stained nervous tissue (top), where nerve cells are green, support cells are red, and regions of overlap are yellow. A standard fluorescence micrograph (bottom) of this rel ...
... illuminated; out-of-focus fluorescence above and below the plane is subtracted by a computer. A sharp image results, as seen in stained nervous tissue (top), where nerve cells are green, support cells are red, and regions of overlap are yellow. A standard fluorescence micrograph (bottom) of this rel ...
Chapter 7: A View of the Cell
... Your cells need nutrients such as glucose, amino acids, and lipids to function. It is the job of the plasma membrane, the flexible boundary between the cell and its environment, to allow a steady supply of these nutrients to come into the cell no matter what the external conditions are. However, too ...
... Your cells need nutrients such as glucose, amino acids, and lipids to function. It is the job of the plasma membrane, the flexible boundary between the cell and its environment, to allow a steady supply of these nutrients to come into the cell no matter what the external conditions are. However, too ...
Document
... Exception: Sex chromosomes (X, Y). Other chromosomes are known as autosomes, they have homologues. ...
... Exception: Sex chromosomes (X, Y). Other chromosomes are known as autosomes, they have homologues. ...
Contribution of microtubule growth polarity and flux to spindle
... or perpendicular to the spindle axis (xt-plot, Fig. 3A), from the time-lapse measurements (xyt). Visual inspection of movies and these constructed kymographs revealed that metaphase plant chromosomes (seen as a negative stain) maintained their positions without appreciable movements in x or y direct ...
... or perpendicular to the spindle axis (xt-plot, Fig. 3A), from the time-lapse measurements (xyt). Visual inspection of movies and these constructed kymographs revealed that metaphase plant chromosomes (seen as a negative stain) maintained their positions without appreciable movements in x or y direct ...
Effects of tubulin assembly inhibitors on cell division in prokaryotes
... rod-like in shape and are typically 2^5 Wm long. Insertional inactivation of the ftsZ gene with a kanamycin cassette in this cyanobacterial strain resulted in the elongation of the cells. The maximum cell size observed increased from 4 Wm to 9 Wm and the mean cell length increased from 3.1 to 4.0 Wm ...
... rod-like in shape and are typically 2^5 Wm long. Insertional inactivation of the ftsZ gene with a kanamycin cassette in this cyanobacterial strain resulted in the elongation of the cells. The maximum cell size observed increased from 4 Wm to 9 Wm and the mean cell length increased from 3.1 to 4.0 Wm ...
ppt - Chair of Computational Biology
... Transcriptional regulation thus influences almost all cell cycle complexes and thereby, indirectly, their static subunits. This implies that many cell cycle proteins cannot be identified through the analysis of any single type of experimental data but only through integrative analysis of several dat ...
... Transcriptional regulation thus influences almost all cell cycle complexes and thereby, indirectly, their static subunits. This implies that many cell cycle proteins cannot be identified through the analysis of any single type of experimental data but only through integrative analysis of several dat ...
Chapter 7
... membrane that is selective for a particular solute. (right) Other transport proteins shuttle a substance from one side to the other by changing shape. Some of these proteins hydrolyze ATP as an energy source to actively pump substances across the membrane. ATP (b) Enzymatic activity. A protein built ...
... membrane that is selective for a particular solute. (right) Other transport proteins shuttle a substance from one side to the other by changing shape. Some of these proteins hydrolyze ATP as an energy source to actively pump substances across the membrane. ATP (b) Enzymatic activity. A protein built ...
Photo CR reading
... is more highly concentrated outside of the cell to the inside of the cell where it is less concentrated. The products of cellular respiration are energy, 6 molecules of CO2, and 6 molecules of H2O. ...
... is more highly concentrated outside of the cell to the inside of the cell where it is less concentrated. The products of cellular respiration are energy, 6 molecules of CO2, and 6 molecules of H2O. ...
Dynamics of Phragmoplastin in Living Cells during
... dominant negative, slowing down the completion of cell plate formation, and often results in an oblique cell plate. The latter appears to uncouple cell elongation from the plane of cell division, forming twisted and elongated cells with longitudinal cell divisions. ...
... dominant negative, slowing down the completion of cell plate formation, and often results in an oblique cell plate. The latter appears to uncouple cell elongation from the plane of cell division, forming twisted and elongated cells with longitudinal cell divisions. ...
Chapter 15 - Evolution
... the nucleus where do they end up? A. cytoplasm B. rough ER C. both a & b D. neither a & b ...
... the nucleus where do they end up? A. cytoplasm B. rough ER C. both a & b D. neither a & b ...
Presentation
... Mammalian cells take in cholesterol by receptor-mediated endocytosis. Lipids are packaged by the liver into lipoproteins—secrete to bloodstream. Liver must take up low-density lipoproteins (LDLs) for recycling. The LDLs bind to specific receptor proteins. ...
... Mammalian cells take in cholesterol by receptor-mediated endocytosis. Lipids are packaged by the liver into lipoproteins—secrete to bloodstream. Liver must take up low-density lipoproteins (LDLs) for recycling. The LDLs bind to specific receptor proteins. ...
Bacterial Cell Morphogenesis Does Not Require a Preexisting
... shape. It has long been debated whether the formation of new wall material or the transmission of shape from parent to daughter cells requires existing wall material as a template [1–3]. However, rigorous testing of this hypothesis has been problematical because the cell wall is normally an essentia ...
... shape. It has long been debated whether the formation of new wall material or the transmission of shape from parent to daughter cells requires existing wall material as a template [1–3]. However, rigorous testing of this hypothesis has been problematical because the cell wall is normally an essentia ...
Conduction of a Nerve Impulse
... These chemicals then diffuse across the gap until they contact the plasma membrane of the postsynaptic neuron When contact is made the result is either excitatory or inhibitory, depending on the nature of the neurotransmitter and its receptor The NT is then deactivated by an enzyme or transport ...
... These chemicals then diffuse across the gap until they contact the plasma membrane of the postsynaptic neuron When contact is made the result is either excitatory or inhibitory, depending on the nature of the neurotransmitter and its receptor The NT is then deactivated by an enzyme or transport ...
Spatial Simulation of Actin Filament Dynamics on Structured Surfaces
... happening once the collision has already occurred. The latter type of rule refers to first-order reactions, where the rate shall be interpreted as with other (non-spatial) stochastic simulations. One of the key players of modeling actin filament growth on different surfaces is the integrin receptor co ...
... happening once the collision has already occurred. The latter type of rule refers to first-order reactions, where the rate shall be interpreted as with other (non-spatial) stochastic simulations. One of the key players of modeling actin filament growth on different surfaces is the integrin receptor co ...
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.