Passive & Active Transport
... What did it mean to have and Active Transport. ACTIVE transport? What – P _____ made it ACTIVE! 2. Explain how a Sodium Potassium pump works. ...
... What did it mean to have and Active Transport. ACTIVE transport? What – P _____ made it ACTIVE! 2. Explain how a Sodium Potassium pump works. ...
Honors Biology Name Cells Notes, continued… PROKARYOTIC
... 1. Surrounded by a double membrane – TWO phospholipid bilayers – Called a nuclear envelope. The outer membrane is often continuous with the RER. 2. Membrane has pores surrounded by proteins which allow mRNA, tRNA, units of ribosomes and other large molecules to pass. 3. Contains DNA (normally in chr ...
... 1. Surrounded by a double membrane – TWO phospholipid bilayers – Called a nuclear envelope. The outer membrane is often continuous with the RER. 2. Membrane has pores surrounded by proteins which allow mRNA, tRNA, units of ribosomes and other large molecules to pass. 3. Contains DNA (normally in chr ...
Tutorial 3: Cells and Organelles
... 1. Allows ribosomal subunits and mRNA transcribed off genes in the DNA to leave the nucleus, enter the cytoplasm, and participate in protein synthesis ...
... 1. Allows ribosomal subunits and mRNA transcribed off genes in the DNA to leave the nucleus, enter the cytoplasm, and participate in protein synthesis ...
receptor
... signal finally triggers a specific cellular response. The response may be almost any imaginable cellular activity- such as catalysis by an enzyme, rearrangement of the cytoskeleton, or activation of specific genes in the nucleus. The cell signaling process helps ensure that crucial activities like t ...
... signal finally triggers a specific cellular response. The response may be almost any imaginable cellular activity- such as catalysis by an enzyme, rearrangement of the cytoskeleton, or activation of specific genes in the nucleus. The cell signaling process helps ensure that crucial activities like t ...
Tissues PowerPoint
... Unstructured material that fills the space between the cells and contains the fibers Functions as a molecular sieve through which nutrients and other dissolved substances diffuse between blood capillaries and cells. Components: Interstitial fluid Adhesion proteins (“glue”) Proteoglycans ...
... Unstructured material that fills the space between the cells and contains the fibers Functions as a molecular sieve through which nutrients and other dissolved substances diffuse between blood capillaries and cells. Components: Interstitial fluid Adhesion proteins (“glue”) Proteoglycans ...
Drugs, Drug Targets and You: Patch Clamping
... order of 1 µm. It is said that by accident they placed the electrode very close to the cell membrane so that it came in tight contact with it. The impedance of the measurement circuit then rose to about 50 GΩ (Neher and Sakmann, 1976). The current changes caused by single ion channels ...
... order of 1 µm. It is said that by accident they placed the electrode very close to the cell membrane so that it came in tight contact with it. The impedance of the measurement circuit then rose to about 50 GΩ (Neher and Sakmann, 1976). The current changes caused by single ion channels ...
Cell membrane phospholipids
... • DPPC is the major lipid component of lung surfactant (extracellular fluid layer lining the alveoli) Surfactant reduces the pressure needed to reinflate alveoli So, it prevents alveolar collapse (atelectasis) ...
... • DPPC is the major lipid component of lung surfactant (extracellular fluid layer lining the alveoli) Surfactant reduces the pressure needed to reinflate alveoli So, it prevents alveolar collapse (atelectasis) ...
1 Epithelium
... These small, elliptical discs form spot-like points of attachment between cells that function to link the intermediate filament network of adjacent cells. The internal leaflet of the adjacent cell membranes appears dense and thick due to the presence of an amorphous material called an attachment pla ...
... These small, elliptical discs form spot-like points of attachment between cells that function to link the intermediate filament network of adjacent cells. The internal leaflet of the adjacent cell membranes appears dense and thick due to the presence of an amorphous material called an attachment pla ...
Slides
... GRP161’s Effect on Cell Biology Concanavalin A (Con A) is a plant protein that binds certain carbohydrate groups that are abundant on glycoproteins and glycolipids Total Cell Lysase (TCL) was run over ConA-beads removes most plasma membrane fragments intracellular membranes remain ...
... GRP161’s Effect on Cell Biology Concanavalin A (Con A) is a plant protein that binds certain carbohydrate groups that are abundant on glycoproteins and glycolipids Total Cell Lysase (TCL) was run over ConA-beads removes most plasma membrane fragments intracellular membranes remain ...
Active transport - PrelimBio
... Active transport requires a carrier protein that spans the membrane to actively move chemicals from a low to a high concentration utilising cellular energy. ...
... Active transport requires a carrier protein that spans the membrane to actively move chemicals from a low to a high concentration utilising cellular energy. ...
Skeletal Muscle Function
... A muscle is a bundle of many cells called myocytes, or muscle fibers. You can think of muscle fibers as long cylinders, and compared to other cells in your body, muscle fibers are quite big. They are from about 1 to 40 microns long and 10 to 100 microns in diameter. For comparison, a strand of hair ...
... A muscle is a bundle of many cells called myocytes, or muscle fibers. You can think of muscle fibers as long cylinders, and compared to other cells in your body, muscle fibers are quite big. They are from about 1 to 40 microns long and 10 to 100 microns in diameter. For comparison, a strand of hair ...
Cells Unit
... Cells Must Be Small Cells must divide because if they grew too large their DNA could not keep up with demands and materials could not efficiently be distributed. ...
... Cells Must Be Small Cells must divide because if they grew too large their DNA could not keep up with demands and materials could not efficiently be distributed. ...
Primary cell wall
... •Secondary cell wall is a thick (5-10 µm) layer, increasing wall rigidity, formed inside the primary cell wall after the cell is fully grown; it is not found in all cell types. •Middle lamella is a layer rich in pectins forming the interface between adjacent plant cells. ...
... •Secondary cell wall is a thick (5-10 µm) layer, increasing wall rigidity, formed inside the primary cell wall after the cell is fully grown; it is not found in all cell types. •Middle lamella is a layer rich in pectins forming the interface between adjacent plant cells. ...
Slide 1
... • Based on their functions, polysaccharides have been traditionally classified into storage materials, structural components or protective substances • An improvement on this classification is the discovery that polysaccharides and oligosaccharides function as information carriers: they serve as de ...
... • Based on their functions, polysaccharides have been traditionally classified into storage materials, structural components or protective substances • An improvement on this classification is the discovery that polysaccharides and oligosaccharides function as information carriers: they serve as de ...
Classification of Tissues
... Connective tissues tend to be very vascular (have a rich blood supply). Some exceptions, such as tendons, ligaments, and cartilages, are less vascularized, but overall, connective tissues possess a great blood supply than the epithelial tissue previously discussed. Connective tissues are made up of ...
... Connective tissues tend to be very vascular (have a rich blood supply). Some exceptions, such as tendons, ligaments, and cartilages, are less vascularized, but overall, connective tissues possess a great blood supply than the epithelial tissue previously discussed. Connective tissues are made up of ...
Cell Transport Notes
... Movement of molecules, other than water, from an area of HIGH concentration to an area of LOW concentration No ATP energy is used. Example: Spraying air freshener in a room and eventually smelling it across the other side ...
... Movement of molecules, other than water, from an area of HIGH concentration to an area of LOW concentration No ATP energy is used. Example: Spraying air freshener in a room and eventually smelling it across the other side ...
Cells – Who was the first person to look at cells? Cells and the Cell
... Cells and the Cell Theory Robert Hooke was the first person to describe cells . In 1665, he built a m icroscope to look at tiny objects. One day, he looked at a thin slice of cork. Cork is found in the bark of cork trees. The cork looked like it was made of little boxes. Hooke named these boxes cell ...
... Cells and the Cell Theory Robert Hooke was the first person to describe cells . In 1665, he built a m icroscope to look at tiny objects. One day, he looked at a thin slice of cork. Cork is found in the bark of cork trees. The cork looked like it was made of little boxes. Hooke named these boxes cell ...
Biology 211 Anatomy & Physiology I
... Melanocytes transfer melanin to keratinocytes Keratinocytes synthesize large amounts of keratin and flatten out as they move toward surface ...
... Melanocytes transfer melanin to keratinocytes Keratinocytes synthesize large amounts of keratin and flatten out as they move toward surface ...
Chapter 4 Functional Anatomy of Prokaryotic and Eukaryotic Cells
... Material crosses plasma membranes by passive processes such as simple diffusion (movement of molecules or ions from an area of higher concentration to an area of lower concentration). At equilibrium, the concentration gradient has been eliminated. Osmosis is the movement of solvent molecules across ...
... Material crosses plasma membranes by passive processes such as simple diffusion (movement of molecules or ions from an area of higher concentration to an area of lower concentration). At equilibrium, the concentration gradient has been eliminated. Osmosis is the movement of solvent molecules across ...
Antibodies
... A- The group 0 red blood cells contain a trisaccharide formed by L-fucose, Dgalactose and N-acetyl-D-glucosamine (designated by substance H). B- The type A red blood cells contain the substance A, which is a tetrasaccharide formed by substance H and N-acetyl-D-galactosamine. C- Red blood cells of ty ...
... A- The group 0 red blood cells contain a trisaccharide formed by L-fucose, Dgalactose and N-acetyl-D-glucosamine (designated by substance H). B- The type A red blood cells contain the substance A, which is a tetrasaccharide formed by substance H and N-acetyl-D-galactosamine. C- Red blood cells of ty ...
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).