Response - Dublin City Schools
... • Earl W. Sutherland (Nobel Prize in 1971) discovered how the hormone epinephrine acts on cells 1. Reception: chemical signal detected when it binds to a cellular protein on surface, changing receptor protein in some way 2. Transduction: converts signal into a form that can bring about a cellular re ...
... • Earl W. Sutherland (Nobel Prize in 1971) discovered how the hormone epinephrine acts on cells 1. Reception: chemical signal detected when it binds to a cellular protein on surface, changing receptor protein in some way 2. Transduction: converts signal into a form that can bring about a cellular re ...
Coupled elasticity–diffusion model for the effects of cytoskeleton
... either directly or indirectly [12–15]. This phenomenon eventually leads to a close functional connection between the actin cytoskeleton and the internalization step of endocytosis. Therefore, many virologists and physiologists [16–18] have pointed out that the physical barrier imposed by the cortica ...
... either directly or indirectly [12–15]. This phenomenon eventually leads to a close functional connection between the actin cytoskeleton and the internalization step of endocytosis. Therefore, many virologists and physiologists [16–18] have pointed out that the physical barrier imposed by the cortica ...
Journal of Bacteriology
... using colony blotting and detection with MAb38. Screening of the first 1,200 transconjugants resulted in the selection of one transconjugant that reacted with MAb38. The reaction on a blot of YMB-agar-grown bacteria of this transconjugant containing a cosmid designated as pMP2201 compared with those ...
... using colony blotting and detection with MAb38. Screening of the first 1,200 transconjugants resulted in the selection of one transconjugant that reacted with MAb38. The reaction on a blot of YMB-agar-grown bacteria of this transconjugant containing a cosmid designated as pMP2201 compared with those ...
Biotransformation of xenobiotics
... substances are absorbed by passive diffusion ● Partition coefficient lipid/water – predominant feature of passive diffusion and also the concentration in and outside of the cell P > 1, greater amount of substance is in lipid = easy diffusion P < 1, diffusion proceeds less readily ● Charged species d ...
... substances are absorbed by passive diffusion ● Partition coefficient lipid/water – predominant feature of passive diffusion and also the concentration in and outside of the cell P > 1, greater amount of substance is in lipid = easy diffusion P < 1, diffusion proceeds less readily ● Charged species d ...
Figure S1. Chloroplast localization and topology of TerC
... Figure S1. Chloroplast localization and topology of TerC-GFP fusion protein. (a) Protoplasts were isolated from terc-1TerC-GFP. Chlorophyll fluorescence was excited at 450 – 490 nm and the emission was recorded at > 515 nm (Filterset 9, Carl Zeiss, http://microscopy.zeiss.com/microscopy/en_de/servic ...
... Figure S1. Chloroplast localization and topology of TerC-GFP fusion protein. (a) Protoplasts were isolated from terc-1TerC-GFP. Chlorophyll fluorescence was excited at 450 – 490 nm and the emission was recorded at > 515 nm (Filterset 9, Carl Zeiss, http://microscopy.zeiss.com/microscopy/en_de/servic ...
Chapter 3 Cells- Structure & Function Part II
... They may not be soluble in the fat core of the membrane They may have to move against a concentration gradient Two common forms of active transport Solute pumping – Active Transport Bulk transport – Endocytosis, Exocytosis Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cu ...
... They may not be soluble in the fat core of the membrane They may have to move against a concentration gradient Two common forms of active transport Solute pumping – Active Transport Bulk transport – Endocytosis, Exocytosis Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cu ...
The plant formin AtFH4 interacts with both actin and microtubules
... sedimented with microtubules, whereas AtFH4D6 remained in the supernatant. Fragment AtFH4D4 noticeably decreased the proportion of tubulin remaining in the supernatant (Fig. 2C; supplementary material Fig. S2). To test its bundling potential, AtFH4D4 was mixed with taxol-stabilised and Oregon-Greenl ...
... sedimented with microtubules, whereas AtFH4D6 remained in the supernatant. Fragment AtFH4D4 noticeably decreased the proportion of tubulin remaining in the supernatant (Fig. 2C; supplementary material Fig. S2). To test its bundling potential, AtFH4D4 was mixed with taxol-stabilised and Oregon-Greenl ...
Concepts of Biology
... bilayer with embedded proteins that separates the internal contents of the cell from its surrounding environment. A phospholipid is a lipid molecule composed of two fatty acid chains, a glycerol backbone, and a phosphate group. The plasma membrane regulates the passage of some substances, such as or ...
... bilayer with embedded proteins that separates the internal contents of the cell from its surrounding environment. A phospholipid is a lipid molecule composed of two fatty acid chains, a glycerol backbone, and a phosphate group. The plasma membrane regulates the passage of some substances, such as or ...
NIPS April 1998 notebook
... for certain secreted proteins and neurotransmitters have different stimulatory effects on these secretory pathways. It is also possible that different populations of cells in the same gland have different secretory products whose secretion can be differentially controlled, resulting in a different s ...
... for certain secreted proteins and neurotransmitters have different stimulatory effects on these secretory pathways. It is also possible that different populations of cells in the same gland have different secretory products whose secretion can be differentially controlled, resulting in a different s ...
3 | cell structure and function
... of a meter (millimeters, or mm) in diameter. That means that approximately 250 red blood cells could fit on the head of a pin. The optics of the lenses of a light microscope changes the orientation of the image. A specimen that is right-side up and facing right on the microscope slide will appear up ...
... of a meter (millimeters, or mm) in diameter. That means that approximately 250 red blood cells could fit on the head of a pin. The optics of the lenses of a light microscope changes the orientation of the image. A specimen that is right-side up and facing right on the microscope slide will appear up ...
Cytoplasmatic Bacterial Membrane Responses to Environmental
... effective in modifying lipid fluidity on the transition temperature [23]. However, changing the head group composition may affect lipid-protein interactions [31]. Lipids are not the only molecules responsive to disturbance. Under stress conditions, the increased amount of specific proteins or de nov ...
... effective in modifying lipid fluidity on the transition temperature [23]. However, changing the head group composition may affect lipid-protein interactions [31]. Lipids are not the only molecules responsive to disturbance. Under stress conditions, the increased amount of specific proteins or de nov ...
The Submicroscopic Structure of the Drosophila Egg
... appears considerably lighter than the cytoplasm. The membrane does not show any clear signs of doubleness, but bears a series of pores of about 650 A diameter (Figs. 4,19). The oocyte nucleus retains this appearance throughout the growth of the cell. The nurse-cell nuclei at stage 7 contain much mor ...
... appears considerably lighter than the cytoplasm. The membrane does not show any clear signs of doubleness, but bears a series of pores of about 650 A diameter (Figs. 4,19). The oocyte nucleus retains this appearance throughout the growth of the cell. The nurse-cell nuclei at stage 7 contain much mor ...
Secreted Hepatitis B Surface Antigen Polypeptides Are Derived from
... hE hepatitis B virus surface antigen (HBsAg) mis a 24-kD protein (also called p24s) that is encoded by the viral S gene. p24s and its glycosylated derivative (gp27s) are the major proteins in the virion outer coat. In the virus particle, this coat envelopes a nucleocapsid composed of a partially dou ...
... hE hepatitis B virus surface antigen (HBsAg) mis a 24-kD protein (also called p24s) that is encoded by the viral S gene. p24s and its glycosylated derivative (gp27s) are the major proteins in the virion outer coat. In the virus particle, this coat envelopes a nucleocapsid composed of a partially dou ...
Metabolic changes during carcinogenesis
... and Maini, 2003; Komarova, 2005). To test the feasibility of the theoretical model of Gatenby and Gillies (2004), we frame the hypothesis using mathematical methods that examine somatic evolution of premalignant cells within the constraints of ductal anatomy. This allows us to test the proposed sequ ...
... and Maini, 2003; Komarova, 2005). To test the feasibility of the theoretical model of Gatenby and Gillies (2004), we frame the hypothesis using mathematical methods that examine somatic evolution of premalignant cells within the constraints of ductal anatomy. This allows us to test the proposed sequ ...
No. 4
... Every cell in the body requires a constant source of energy in order to perform its particular functions— these functions are contraction, secretion, synthesis, or any other. Ingested food provides the basic materials from which this energy is produced and new molecules are synthesized. Most food, h ...
... Every cell in the body requires a constant source of energy in order to perform its particular functions— these functions are contraction, secretion, synthesis, or any other. Ingested food provides the basic materials from which this energy is produced and new molecules are synthesized. Most food, h ...
Ionic Trace Minerals—A Simple Solution for a Complex Body
... mineral forms (organic, colloidal) are not as readily absorbed. What is an Ion? An ion is any atom or group of atoms that holds one or more positive or negative electrical charges. Positively charged ions are known as cations while negatively charged ions are called anions. Ions are formed by the ad ...
... mineral forms (organic, colloidal) are not as readily absorbed. What is an Ion? An ion is any atom or group of atoms that holds one or more positive or negative electrical charges. Positively charged ions are known as cations while negatively charged ions are called anions. Ions are formed by the ad ...
A Ride with Listeria monocytogenes: A Trojan Horse
... systemic spread (Garner et al., 2004). Genes important for the escape of bacteria from the phagolysosome to the intracytoplasmic environment are hly and plcA. hly encodes for the poreforming toxin listeriolysin O (LLO), while the plcA gene is responsible for the production of phosphatidylinositol ph ...
... systemic spread (Garner et al., 2004). Genes important for the escape of bacteria from the phagolysosome to the intracytoplasmic environment are hly and plcA. hly encodes for the poreforming toxin listeriolysin O (LLO), while the plcA gene is responsible for the production of phosphatidylinositol ph ...
Role of lipids in the translocation of proteins across membranes
... mutant. The ratio between these lipids is dependent on the type of cation present during growth. Apparently, restoration of growth requires a specific lipid composition in combination with a specific cation. Analysis of the phase behaviour of these lipids in the presence of the corresponding cation ...
... mutant. The ratio between these lipids is dependent on the type of cation present during growth. Apparently, restoration of growth requires a specific lipid composition in combination with a specific cation. Analysis of the phase behaviour of these lipids in the presence of the corresponding cation ...
Accurate cell segmentation in microscopy images using membrane
... Overview. MPCS works with microscopy images of cells with a membrane pattern, that is, a characteristic intensity profile across their membrane. Based on the input image, we first specify few biologically intuitive parameters. Then, we detect potential points inside the cells (called seeds). Each se ...
... Overview. MPCS works with microscopy images of cells with a membrane pattern, that is, a characteristic intensity profile across their membrane. Based on the input image, we first specify few biologically intuitive parameters. Then, we detect potential points inside the cells (called seeds). Each se ...
Hin- und Rückflug: €199,37
... proteins that are conserved in all eukaryotes. They are characterized by their preferential accumulation at growing microtubule plus ends. +TIPs regulate microtubule dynamics and mediate the anchorage of microtubules to different cellular structures, including kinetochores and membrane compartments. ...
... proteins that are conserved in all eukaryotes. They are characterized by their preferential accumulation at growing microtubule plus ends. +TIPs regulate microtubule dynamics and mediate the anchorage of microtubules to different cellular structures, including kinetochores and membrane compartments. ...
Cell Unit
... One kind of organelle is the mitochondria. Mitochondria are small, rice-shaped structures. In fact, they are so small they can only be seen with an electron microscope. Mitochondria are powerhouses of the cell. They break down food to make energy for the cell. The energy is used by the cell to carry ...
... One kind of organelle is the mitochondria. Mitochondria are small, rice-shaped structures. In fact, they are so small they can only be seen with an electron microscope. Mitochondria are powerhouses of the cell. They break down food to make energy for the cell. The energy is used by the cell to carry ...
Cell division - MrMcKennaBiologyPage
... What type of cell is this? Animal or plant Animal Describe what is happening Cytoplasm dividing by tucking in. ...
... What type of cell is this? Animal or plant Animal Describe what is happening Cytoplasm dividing by tucking in. ...
mitosis
... Somatic cell- cell of the body that is not a gamete or a precursor to a gamete Germ cell- gametes (sperm and egg, or their precursors) Karyotype – organized representation of the chromosomes Diploid – each chromosome is in pair, two sets of them Homolog- the member of each par or chromosomes in ...
... Somatic cell- cell of the body that is not a gamete or a precursor to a gamete Germ cell- gametes (sperm and egg, or their precursors) Karyotype – organized representation of the chromosomes Diploid – each chromosome is in pair, two sets of them Homolog- the member of each par or chromosomes in ...
Special senses
... regions: Posterior Sclera Anterior Cornea. At the junction between these two is the Canal of Schlemm. a. Sclera: The white of the eye ball --it gives shape to the eye ball. --protects inner parts. --optic nerve pierces its posterior surface. b. Cornea: is non-vascular transparent fibrous coat --iris ...
... regions: Posterior Sclera Anterior Cornea. At the junction between these two is the Canal of Schlemm. a. Sclera: The white of the eye ball --it gives shape to the eye ball. --protects inner parts. --optic nerve pierces its posterior surface. b. Cornea: is non-vascular transparent fibrous coat --iris ...
Cell membrane
The cell membrane (also known as the plasma membrane or cytoplasmic membrane) is a biological membrane that separates the interior of all cells from the outside environment. The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells. The basic function of the cell membrane is to protect the cell from its surroundings. It consists of the phospholipid bilayer with embedded proteins. Cell membranes are involved in a variety of cellular processes such as cell adhesion, ion conductivity and cell signalling and serve as the attachment surface for several extracellular structures, including the cell wall, glycocalyx, and intracellular cytoskeleton. Cell membranes can be artificially reassembled.