Chapter 7 (Nov 12-13)
... Figure 7.9 Some functions of membrane proteins (a) Transport. (left) A protein that spans the membrane may provide a hydrophilic channel across the membrane that is selective for a particular solute. (right) Other transport proteins shuttle a substance from one side to the other by changing shape. ...
... Figure 7.9 Some functions of membrane proteins (a) Transport. (left) A protein that spans the membrane may provide a hydrophilic channel across the membrane that is selective for a particular solute. (right) Other transport proteins shuttle a substance from one side to the other by changing shape. ...
4 Plasma Membrane Transport
... concentration gradient, the difference in concentration of a substance from one area to another No work must be done to move substances down the concentration gradient The diffusion of a substance across a biological membrane is passive transport because it requires no energy from the cell to make i ...
... concentration gradient, the difference in concentration of a substance from one area to another No work must be done to move substances down the concentration gradient The diffusion of a substance across a biological membrane is passive transport because it requires no energy from the cell to make i ...
StellARray Predefined Flyer
... • Dried down format is ready to use or guaranteed for one year. Global Pattern Recognition™ with internal normalization provides accurate gene expression analysis that indicates only significant changes. All panels are curated from well published lists of gene pathways and most are available for ana ...
... • Dried down format is ready to use or guaranteed for one year. Global Pattern Recognition™ with internal normalization provides accurate gene expression analysis that indicates only significant changes. All panels are curated from well published lists of gene pathways and most are available for ana ...
3.2 Cell Organelles Cells have an internal structure.
... processing proteins. • The nucleus stores genetic information. • Many processes occur in the endoplasmic reticulum. • There are two types of endoplasmic reticulum. – rough endoplasmic reticulum – smooth endoplasmic reticulum ...
... processing proteins. • The nucleus stores genetic information. • Many processes occur in the endoplasmic reticulum. • There are two types of endoplasmic reticulum. – rough endoplasmic reticulum – smooth endoplasmic reticulum ...
Bio 226: Cell and Molecular Biology
... • Periclinal = perpendicular to surface: get longer • Anticlinal = parallel to surface: add more layers Now must decide which way to elongate: which walls to stretch ...
... • Periclinal = perpendicular to surface: get longer • Anticlinal = parallel to surface: add more layers Now must decide which way to elongate: which walls to stretch ...
Lab 3 The Skin and Synovial Joints 2009
... sacs filled with keratin. Glycolipids in extracellular space. Stratum granulosum Three to five layers of flattened cells, organelles deteriorating; cytoplasm full of lamellated granules (release lipids) and keratohyaline granules. Stratum spinosum Several layers of keratinocytes unified by desmosome ...
... sacs filled with keratin. Glycolipids in extracellular space. Stratum granulosum Three to five layers of flattened cells, organelles deteriorating; cytoplasm full of lamellated granules (release lipids) and keratohyaline granules. Stratum spinosum Several layers of keratinocytes unified by desmosome ...
In This Issue - The Journal of Cell Biology
... observed, creating a structure with microtubules and has simultaneously a comma-shaped cross section rather provided evidence that it is not. Now, than a microtubule. Previously on page 1039, Hu et al. resolve this described tubulin structures are longstanding dilemma by demonstrating generally circ ...
... observed, creating a structure with microtubules and has simultaneously a comma-shaped cross section rather provided evidence that it is not. Now, than a microtubule. Previously on page 1039, Hu et al. resolve this described tubulin structures are longstanding dilemma by demonstrating generally circ ...
Assembly and function of cell surface structures of the
... pilins and bacterial type IV pilins (Albers et al., 1999b). The precursors of these sugar binding proteins are substrates for PibD, the membrane-bound archaeal type IV signal peptidase (Albers et al., 2003). In vitro cleavage assays demonstrated that the flagellin FlaB and the glucose binding protei ...
... pilins and bacterial type IV pilins (Albers et al., 1999b). The precursors of these sugar binding proteins are substrates for PibD, the membrane-bound archaeal type IV signal peptidase (Albers et al., 2003). In vitro cleavage assays demonstrated that the flagellin FlaB and the glucose binding protei ...
Plant Cell Culture
... ultimate in manipulation of plant cell culture. During the development of this area, numerous techniques have been established which have, in many cases, resulted in practical application. These techniques can be categorized according to whether they can be used for propagation, improvement, conserv ...
... ultimate in manipulation of plant cell culture. During the development of this area, numerous techniques have been established which have, in many cases, resulted in practical application. These techniques can be categorized according to whether they can be used for propagation, improvement, conserv ...
Stefanie Dimmeler Thomas Bruhl, Carmen Urbich
... Key Words: homeobox 䡲 migration 䡲 angiogenesis 䡲 Eph receptor 䡲 endothelial cells ...
... Key Words: homeobox 䡲 migration 䡲 angiogenesis 䡲 Eph receptor 䡲 endothelial cells ...
Stomate cells
... Stomate A stomate is composed of a group of epidermal cells that includes the guard cells and subsidiary cells. Stomata are designed to regulate gas exchange and transpirational water loss. Stomata are most frequently found on the bottom (abaxial) side of leaves, but may occur on the top (adaxial) o ...
... Stomate A stomate is composed of a group of epidermal cells that includes the guard cells and subsidiary cells. Stomata are designed to regulate gas exchange and transpirational water loss. Stomata are most frequently found on the bottom (abaxial) side of leaves, but may occur on the top (adaxial) o ...
Lecture 4
... Types of Cells 9. White Blood Cells: Not normally found in connective tissue. They Migrate from the blood into connective tissue in cases of infection, parasitic invasion, and allergic responses. ...
... Types of Cells 9. White Blood Cells: Not normally found in connective tissue. They Migrate from the blood into connective tissue in cases of infection, parasitic invasion, and allergic responses. ...
- Triumph Learning
... Not all particles can diffuse across a cell membrane. A membrane is permeable to substances that can pass through it and impermeable to those that cannot. Cell membranes are selectively permeable, that is, they allow only some particles to pass through them. Living cells are made up mostly of water. ...
... Not all particles can diffuse across a cell membrane. A membrane is permeable to substances that can pass through it and impermeable to those that cannot. Cell membranes are selectively permeable, that is, they allow only some particles to pass through them. Living cells are made up mostly of water. ...
Redox rescues virus from eR trap - Institute of Molecular Life Sciences
... attachment sites4. Polyoma viruses are assembled in the nucleus under reducing conditions, and their capsids become oxidized outside the cell. The spatial separation of viral assembly and disassembly explains in part why a virus can be stably assembled in an infected cell and disassembled on entry i ...
... attachment sites4. Polyoma viruses are assembled in the nucleus under reducing conditions, and their capsids become oxidized outside the cell. The spatial separation of viral assembly and disassembly explains in part why a virus can be stably assembled in an infected cell and disassembled on entry i ...
Constitutive caspase-like machinery executes programmed cell
... criteria of the resultant cell-death lesion.12,13 Although the HR is a common feature of many resistant reactions, it is not an obligatory component.11,14,15 Challenging tomato or tobacco varieties with the ethylene-inducing xylanase (EIX) elicitor causes rapid induction of different types of plant ...
... criteria of the resultant cell-death lesion.12,13 Although the HR is a common feature of many resistant reactions, it is not an obligatory component.11,14,15 Challenging tomato or tobacco varieties with the ethylene-inducing xylanase (EIX) elicitor causes rapid induction of different types of plant ...
Response of cells and tissues to mechanical stimulations
... A fundamental property of living tissues is their adaptation to the environment and to movement (a property described by Roux at the end of the 19th century). These movements are at the origin of local mechanical stresses and constitute stimuli which can lead to modification of the biological behavi ...
... A fundamental property of living tissues is their adaptation to the environment and to movement (a property described by Roux at the end of the 19th century). These movements are at the origin of local mechanical stresses and constitute stimuli which can lead to modification of the biological behavi ...
microinjection as a procedure to deliver small and large molecules
... The basic system of the microinjection procedure has been described by Vos et al. (1999). Hypokotyl protoplasts of sunflower (Helianthus annuus L.), genotype Sunshine which showed good cytoplasmic streaming, with a dense cytoplasm, at least 40 µm in diameter, a circular shape and no visible membrane ...
... The basic system of the microinjection procedure has been described by Vos et al. (1999). Hypokotyl protoplasts of sunflower (Helianthus annuus L.), genotype Sunshine which showed good cytoplasmic streaming, with a dense cytoplasm, at least 40 µm in diameter, a circular shape and no visible membrane ...
Is cytoskeletal tension a major determinant of cell - AJP-Cell
... were stretched before and after addition of Cyto D, which disrupts the actin lattice. Addition of Cyto D (1 µg/ml for 30 min) resulted in a 40% reduction in stiffness from the control (Fig. 6). Cyto D also completely prevented the effects of the stretch on cells. These data demonstrate that the stre ...
... were stretched before and after addition of Cyto D, which disrupts the actin lattice. Addition of Cyto D (1 µg/ml for 30 min) resulted in a 40% reduction in stiffness from the control (Fig. 6). Cyto D also completely prevented the effects of the stretch on cells. These data demonstrate that the stre ...
CHAPTER 16 LYMPHOID TISSUE STRUCTURE
... As fluids from various tissues are collected in the lymphatics, they enter the afferent vessels of a lymph node, percolate through the cortex and through the medulla, and are collected in the single efferent lymphatic through which they leave the node; this fluid eventually ends up in one of the ma ...
... As fluids from various tissues are collected in the lymphatics, they enter the afferent vessels of a lymph node, percolate through the cortex and through the medulla, and are collected in the single efferent lymphatic through which they leave the node; this fluid eventually ends up in one of the ma ...
Amoeba - SMS Tiger Team
... such a way as to pull the cell through the water. It is attached at an inward pocket called the reservoir. Color the reservoir grey and the flagellum black. The Euglena is unique in that it is both heterotrophic (must consume food) and autotrophic (can make its own food). Chloroplasts within the eug ...
... such a way as to pull the cell through the water. It is attached at an inward pocket called the reservoir. Color the reservoir grey and the flagellum black. The Euglena is unique in that it is both heterotrophic (must consume food) and autotrophic (can make its own food). Chloroplasts within the eug ...
Extracellular matrix
In biology, the extracellular matrix (ECM) is a collection of extracellular molecules secreted by cells that provides structural and biochemical support to the surrounding cells. Because multicellularity evolved independently in different multicellular lineages, the composition of ECM varies between multicellular structures; however, cell adhesion, cell-to-cell communication and differentiation are common functions of the ECM.The animal extracellular matrix includes the interstitial matrix and the basement membrane. Interstitial matrix is present between various animal cells (i.e., in the intercellular spaces). Gels of polysaccharides and fibrous proteins fill the interstitial space and act as a compression buffer against the stress placed on the ECM. Basement membranes are sheet-like depositions of ECM on which various epithelial cells rest.The plant ECM includes cell wall components, like cellulose, in addition to more complex signaling molecules. Some single-celled organisms adopt multicelluar biofilms in which the cells are embedded in an ECM composed primarily of extracellular polymeric substances (EPS).