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assignment on disease of the oral mucosa
assignment on disease of the oral mucosa

... Several factors can affect the etiopathogenesis of this disease include : Host immune system and family history. -In immune system the role of T-lymphocytes in the pathogenesis of aphthous Ulcers is to establish an immune system dysfunction in which cytokine cause destruction of endothelial cells ad ...
Neurons
Neurons

... “Information” travels within the nervous system primarily in the form of propagated electrical signals known as action potentials.  An action potential occurs due to a rapid change in membrane polarity (depolarization followed by repolarization)  Depolarization is due to: ____________________; re ...
Lab Test 1 Study Sheet (summer term)
Lab Test 1 Study Sheet (summer term)

... Have an understanding of the following topics: 24. Be able to describe the surface area to volume ratio of cells. 25. Recognize a cheek cell, and know some of the typical cellular organelles. 26. Know the differences in light microscope and electron scope. 27. What are the steps of the scientific me ...
Chapter 15: Fluid and Electrolyte Balance Notes
Chapter 15: Fluid and Electrolyte Balance Notes

... Essential for cellular integrity, transmission of neuromuscular impulses, acid-base balance, conversion of carbohydrates into energy, and the formation of amino acids into proteins. Serum potassium affects the strength and rate of cardiac contraction. Potassium is found in meat, potatoes, bananas an ...
Chapter 44: Regulating the Internal Environment
Chapter 44: Regulating the Internal Environment

... that’s called a “counter current exchange system” ...
Murdock, J. N., W. K. Dodds and D. l. Wetzel. 2008. Subcellular
Murdock, J. N., W. K. Dodds and D. l. Wetzel. 2008. Subcellular

... Algae respond rapidly and uniquely to changes in nutrient availability by adjusting pigment, storage product, and organelle content and quality. Cellular and subcellular variability of the relative abundance of macromolecular pools (e.g. protein, lipid, carbohydrate, and phosphodiesters) within the ...
Negative Controls of Cell Proliferation: Human
Negative Controls of Cell Proliferation: Human

... mented medium (Fig. 3). The inhibitory effect of CD human sera was not instantaneous; at the end of 3-4 days the popula tion increase was halted and remained stable for up to 30 days without media changes. That these cells were then still viable is suggested by increased cell proliferation rates whe ...
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The Circulatory System

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... • Lysosomes contain enzymes to digest material. • Centrioles are tubes found in the centrosomes – made of microtubules. – Centrioles help divide DNA. – Centrioles form cilia and flagella. ...
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... proteins. The incubation was continued for the next 48 h at 37˚C. Target cells incubated with media alone served as a control. The modified crystal violet staining method [10] and Bürker chamber counting method served as a measure of cytostasis by macrophage supernatants. The MTT tetrazolium assay [ ...
BIOL 2401 Unit and Final Exam Study Guides
BIOL 2401 Unit and Final Exam Study Guides

... 7. The hollow space within the bone is called …  8. The longest bone in the body is …  9. The arm bone is called …  10. The thigh bone is also called …  11. The hip joint is composed of the acetabulum and …  12. The three fused bones which make up the hipbone (coxae) are …  13. Name the different pr ...
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Circulatory System

... • Capillaries connect arteries and veins. They are tiny tubes that exchange food, oxygen and wastes between blood and body cells. • Pulmonary circulation is the movement of blood between the heart and lungs • Coronary circulation is the movement of blood from within the heart chambers to the heart t ...
xylem vessels - KCPE-KCSE
xylem vessels - KCPE-KCSE

... “typical” plant cells = least specialized photosynthetic cells, storage cells tissue of leaves, stem, fruit, storage roots ...
Anaerobic respiration - Pukekohe High School
Anaerobic respiration - Pukekohe High School

... 1. physical digestion – food is physically broken into __________ particles by the teeth. These smaller food particles now have a large surface area available for enzymes to work on. 2. chemical digestion – these smaller food particles are broken down into even smaller particles by substances called ...
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Circulatory System

... • Capillaries connect arteries and veins. They are tiny tubes that exchange food, oxygen and wastes between blood and body cells. • Pulmonary circulation is the movement of blood between the heart and lungs • Coronary circulation is the movement of blood from within the heart chambers to the heart t ...
Cell Organelles and Biotechnology
Cell Organelles and Biotechnology

... process — fermentation by yeast — to turn starchrich grains into fuel. Manure digestors use fermentation by bacteria. Bacteria and animal wastes, such as hog manure, are warmed and mixed in a sealed, airless tank. The resulting biogas is a mixture of methane, carbon dioxide, and small amounts of oth ...
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Topic 6.4 Notes

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Supplemental Material_Tsang

... ml three-necked flask. The mixture was degassed and heated up to 100 °C for 1 h under vacuum to form lead oleate and to dry the solution. The solution was cooled down to 65 °C and (TMS)2S (105 μl, 0.5 mmol) in ODE (2.5 ml) was swiftly injected into the flask under vigorous stirring with the protecti ...
Chapter 6 A Tour of the Cell
Chapter 6 A Tour of the Cell

... © 2014 Pearson Education, Inc. ...
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Lymphatic System

... Must be used when there is contact with blood, any body fluid (except sweat), mucous membranes and non-intact skin. Handwashing – the single most effective way to prevent infection. Wash hands after touching body fluids, ...
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11Physiology of human body systems

... My name is Jason. I want to be a children’s nurse. If I do well enough on the BTEC National course I will be able to study for a degree in nursing. I have enjoyed Unit 11 because I have learnt about how the body works. I especially enjoyed the section where we took measurements about blood pressure ...
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Presentation

... hypotonic solution across a membrane to a hypertonic solution. Animal cells may burst when placed in a hypotonic solution. Plant cells with rigid cell walls build up internal pressure that keeps more water from entering—turgor pressure. ...
Biological and Biochemical Foundations of Living Systems
Biological and Biochemical Foundations of Living Systems

... chemical properties that are responsible for their participation in virtually every process occurring within and between cells. The three-dimensional structure of proteins is a direct consequence of the nature of the covalently-bonded sequence of amino acids, their chemical and physical properties, ...
Keystone Review With Questions KEY
Keystone Review With Questions KEY

... c. plasma membrane and nucleus d. plasma membrane and cytoplasm 3. Alveoli are microscopic air sacs in the lungs of mammals. Which statement best describes how the structure of the  alveoli allows the lungs to function properly? a. They increase the amount of energy transferred from the lungs to the ...
Themes of Biology
Themes of Biology

... Clouds, for example, move when stimulated by the wind and develop from moisture that is suspended in the atmosphere. Clouds grow and change shapes. Some might view the breakup of clouds as being similar to death. Disorder, however, is not the same as death. Clouds may break up and vanish, but they d ...
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Organ-on-a-chip

An organ-on-a-chip (OC) is a multi-channel 3-D microfluidic cell culture chip that simulates the activities, mechanics and physiological response of entire organs and organ systems. It constitutes the subject matter of significant biomedical engineering research, more precisely in bio-MEMS. The convergence of labs-on-chips (LOCs) and cell biology has permitted the study of human physiology in an organ-specific context, introducing a novel model of in vitro multicellular human organisms. One day, they will perhaps abolish the need for animals in drug development and toxin testing.Although multiple publications claim to have translated organ functions onto this interface, the movement towards this microfluidic application is still in its infancy. Organs-on-chips will vary in design and approach between different researchers. As such, validation and optimization of these systems will likely be a long process. Organs that have been simulated by microfluidic devices include the heart, the lung, kidney, artery, bone, cartilage, skin and more.Nevertheless, building valid artificial organs requires not only a precise cellular manipulation, but a detailed understanding of the human body’s fundamental intricate response to any event. A common concern with organs-on-chips lies in the isolation of organs during testing. ""If you don’t use as close to the total physiological system that you can, you’re likely to run into troubles"" says William Haseltine, founder of Rockville, Maryland. Microfabrication, microelectronics and microfluidics offer the prospect of modeling sophisticated in vitro physiological responses under accurately simulated conditions.
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