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NGF is the trophic factor that promotes cell survival
NGF is the trophic factor that promotes cell survival

... • The target cells release a factor that promotes cell survival • This factor is found in limiting quantities • Cells compete to get enough factor to survive ...
Na+/K+ (Sodium/Potassium) Pump
Na+/K+ (Sodium/Potassium) Pump

... in the electrical potential across the plasma membrane of the cell; voltage-gated Na_ c.'s are important for conducting action potential along nerve cell processes. • 2. Ligand gated ion channel • a transmembrane ion channel whose permeability is increased by the binding of a specific ligand, typica ...
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... primary structure of a protein is its unique sequence of amino acids. ...
Nervous System - Uplift Education
Nervous System - Uplift Education

...  Irritability = ability to respond to a stimulus and convert it to a nerve impulse  Conductivity = ability to transmit the impulse to other neurons, muscles, or glands. ...
Cell Organelles
Cell Organelles

... Usually the easiest organelle to see under a microscope Usually one per cell ...
Parts of the Cell Fact Sheets
Parts of the Cell Fact Sheets

...  Mitochondria are called the “power house” of the cell because this is where energy is released from glucose.  Cells use this energy to carry out all their essential functions.  Bacteria do not have mitochondria but still are able to respire for energy. ...
cell - MrsEhrhardScience
cell - MrsEhrhardScience

... The Cell’s Protection The Cell Membrane: • Boundary between the cell and its environment. • Controls the passage of materials into and out of the cell. The Cell Wall: • Rigid structure, much thicker than the cell membrane • Provides support and additional protection. • Found in plants, fungi, and m ...
AUTORADIOGRAPHY
AUTORADIOGRAPHY

... In situ hybridization can be combined with immunohistochemistry. In this study, reelin mRNA was found to be synthesized in GABAergic cells. Reelin mRNA was detected with a digoxygenin-labelled probe that was then visualized using fluorescence immunohistochemistry (fluorescein: green). GAD67, the syn ...
Lecture 2 - Microscopy and Cell Structure S11 2 slides per page
Lecture 2 - Microscopy and Cell Structure S11 2 slides per page

... • Barrier between cell and external environment • Permits passage of only certain molecules, such as water, small hydrophobic molecules and gases ...
AP Biology - gwbiology
AP Biology - gwbiology

... it vital for the body so it can transport hydrophobic substances like lipids (fat) around in the blood vessels easily. It bonds to the fat cells so they can be moved through the blood vessels, otherwise the hydrophobic lipids would cause an obstruction in the vessels. ...
Compare the size of these organisms
Compare the size of these organisms

... What tissues in our body need to undergo a lot of cell division? Skin Why? ...
Compare the size of these organisms
Compare the size of these organisms

... What tissues in our body need to undergo a lot of cell division? Skin Why? ...
Allosteric Modulation of DNA by Small Molecules
Allosteric Modulation of DNA by Small Molecules

... Allosteric Modulation of DNA by Small Molecules Signals originating at the cell surface are conveyed by a complex system of interconnected signaling pathways to the nucleus. They converge at transcription factors, which in turn regulate the transcription of sets of genes that result in the gene expr ...
General Definitions and Basic Concepts Describing Cancer
General Definitions and Basic Concepts Describing Cancer

... Furthermore, any distortion from optimum geometry introduces strain which destabilizes structure. Another property of tetrahedral carbon is that when molecular groups at the apices are all different, as indicated in the overhead, property of chirality is introduced. Reflection of the tetrahedron in ...
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... They are complex molecules made from smaller molecules. They are used to assemble larger inorganic materials. They are simple molecules used as energy sources. ...
Integrating Cells into Tissues Integrating Cells into Tissues
Integrating Cells into Tissues Integrating Cells into Tissues

... Cells in animal tissues also adhere indirectly (cell-matrix adhesion) through the binding of adhesion receptors in the plasma membrane to components of the surrounding extracellular matrix (ECM); A complex interdigitating meshwork of proteins and polysaccharides screted by cells into the spaces betw ...
File - Rights4Bacteria
File - Rights4Bacteria

... The plant cells would not have been able to absorb these mineral ions from the pond water by diffusion. Explain why not. ...
Cell Membranes
Cell Membranes

... Review of three types of endocytosis: Pinocytosis – pinching off of a small amount of the fluid around the cell. Receptor-mediated endocytosis – this is the process where the cell selectively bind to and engulf material found outside the cell. Phagocytosis – process by which cells pick up large part ...
Cell Membrane or Plasma Membrane
Cell Membrane or Plasma Membrane

... • Cells that perform photosynthesis (plants and some protists) take in carbon dioxide through the cell membrane instead of oxygen. ...
Student Workbook
Student Workbook

... 4. As cells increase in size the surface area to volume ratio ( increases / decreases ). What does this mean for the cell if it can only exchange nutrients and wastes at the cell membrane? (2 marks) ...
topic 3 igcse biology
topic 3 igcse biology

... specific shape that enables other molecules to fit into the protein. ...
high concentration to an area of low concentration. The cell
high concentration to an area of low concentration. The cell

... Enzymes are proteins. At low temperatures, enzymes do not work effectively (molecules move too slowly). Enzymes increase the rate of reaction (i.e. speed up) most effectively at a temperature called the optimum. Beyond that temperature, an enzyme becomes denaturated, i.e. it is irreversibly damaged ...
Potential Significance of IL-6 Receptor Genotype on ALS Disease
Potential Significance of IL-6 Receptor Genotype on ALS Disease

... Abstracts must contain the background, hypothesis, methods, results to date (if ongoing) and discussion/conclusions. Not to Exceed 350 Words. Typed font must be Times New Roman and no smaller than 11 Pt. Do not use continuation pages, tables, or illustrations. Tocilizumab, an antibody to block the i ...
10. Plasmolysis and the effect of Osmosis on Cells
10. Plasmolysis and the effect of Osmosis on Cells

... lower water concentration) than the cytoplasm, water will tend to leave the cell. The cell will shrink and the cell membrane will exert no turgor pressure. The cell will be flaccid. As water continues to be lost the cytoplasm will shrink within the cell wall. In this state, cells are said to be plas ...
Microbiology
Microbiology

... permeable barrier allows passage of some molecules into the cell and not all ...
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Signal transduction



Signal transduction occurs when an extracellular signaling molecule activates a specific receptor located on the cell surface or inside the cell. In turn, this receptor triggers a biochemical chain of events inside the cell, creating a response. Depending on the cell, the response alters the cell's metabolism, shape, gene expression, or ability to divide. The signal can be amplified at any step. Thus, one signaling molecule can cause many responses.
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