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ELECTROCHEMICAL IMPULSE
ELECTROCHEMICAL IMPULSE

... Luigi Galvani, 18th century: muscle of dead frog would twitch if electricity passed through it These experiments lead to lots of research in the field of electrical conductivity of muscle tissue and the body 1840: Emil Dubois-Reymond, German physiologist, made instruments that could measure current ...
Respiration Sheets
Respiration Sheets

... Breathing is the process by which air moves into and out of the lungs. The breathing process and the rate of breathing are mainly controlled by the respiratory center in the medulla of the brain. Nerves go from the respiratory center to the diaphragm and rib muscles. The respiratory center is sensit ...
gamma-delta T cells target the red blood cell
gamma-delta T cells target the red blood cell

... using a parasite growth inhibition assay. In comparison to parasites alone, a decrease of parasitemia was observed in parasite co-culture with resting PBMCs for all but one donor. This decrease was slightly enhanced when the PBMCs were activated before performing the parasite growth inhibition assay ...
Question paper - Unit G623 - Cells and molecules
Question paper - Unit G623 - Cells and molecules

... oxygen are the two elements found in water. (a) Some of the properties of water are listed below. Draw a line to link each property of water to its importance to living organisms. property of water ...
Answers ch00
Answers ch00

... 2. all cells come from pre-existing cells 3. the cell is the smallest organisational unit of living things. A hypothesis is a possible explanation for an observed phenomenon. It is possible to derive predictions from good hypotheses and test them by experiments or specific observations. Hypotheses t ...
Defineation of canine parvovirus T cell epitopes with peripheral
Defineation of canine parvovirus T cell epitopes with peripheral

... vaccination had taken place between 3 and 12 months before sampling. Samples were also taken from CPV-seronegative dogs that had been kept under specific pathogen-free conditions in the animal facilities of Harlan/Olac CPB Zeist, The Netherlands. PBMC were obtained by sedimentation of heparinized bl ...
Reovirus for the treatment of acute myeloid leukaemia
Reovirus for the treatment of acute myeloid leukaemia

... when primary CLL cells were incubated with CD40L-expressing mouse fibroblasts increased expression of both CD54 and CD55 was observed. The efficacy of Cavatak virotherapy was increased after co-culture with CD40L positive cells. CLL cell lines are susceptible to Cavatak virotherapy but human primary ...
Silica nanoparticles enhance autophagic activity, disturb endothelial
Silica nanoparticles enhance autophagic activity, disturb endothelial

... pericytes in the heart of ICR mice by TEM. Autophagic activity and impaired angiogenesis were further confirmed by the immunohistochemistry staining of LC3 and VEGFR2. In addition, the immunohistochemistry results showed that SiNPs had an inhibitory effect on ICAM-1 and VCAM-1, but no obvious effect ...
Biology Priority Expectations
Biology Priority Expectations

... needs of the entire organism and the cells of which it is composed. ...
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(a) (i) the three features correctly labelled on cheek cell

... accept contains genetic material or genes or chromosomes or stores information do not credit the brain of the cell cytoplasm where respiration occurs accept contains food or mitochondria or reactions occurs membrane less water or chemicals accept surrounds the cell or lets some things in but not oth ...
Vacuole metabolites
Vacuole metabolites

... Proteins found in the tonoplast (aquaporins) control the flow of water into and out of the vacuole through active transport, pumping potassium (K+) ions into and out of the vacuolar interior. Due to osmosis, water will diffuse into the vacuole, placing pressure on the cell wall. If water loss leads ...
Fluid, Electrolyte, and Acid
Fluid, Electrolyte, and Acid

... important buffer system. H2CO3 (carbonic acid) is the acid member of the pair because it can release H+. HCO3- is the base member of the pair because it can accept H+. This system is important because two of its components are rigorously controlled by the body: the lungs control CO2 and the kidney ...
Growth of curved and helical bacterial cells
Growth of curved and helical bacterial cells

... The bacterial cell wall is a network of peptidoglycan (PG) strands. PG strands are constantly inserted into or deleted from the network by enzymes. Computational modeling21 showed that removal of peptide bonds in a static PG network can lead to curved cells. Although changes in peptidoglycan (PG) cr ...
LIFE PROCESSES CLASS 10 QUESTIONS AND ANSWERS
LIFE PROCESSES CLASS 10 QUESTIONS AND ANSWERS

... Atria – The two upper chambers in the heart, which receive blood from the veins and push it into the ventricles. Ventricles – The two lower chambers of the heart, which receive blood from the atria and pump it into the arteries. Double circulation – A type of circulation in which the blood flows thr ...
Name Class Date Prokaryotes (aka Bacterial Cells) Make Up #14
Name Class Date Prokaryotes (aka Bacterial Cells) Make Up #14

... producers that carry out photosynthesis. Some soil bacteria convert natural nitrogen gas into a form plants can use through a process called nitrogen fixation. Humans use bacteria in industry, food production, and other ways. Prokaryotes can also disrupt the health of ecosystems, as when explosive a ...
30.1 Respiratory and Circulatory Functions
30.1 Respiratory and Circulatory Functions

... arteries, veins, and capillaries. – heart pumps blood throughout body – arteries move blood away from heart – veins move blood back to heart – capillaries get blood to and from cells arteries ...
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video slide

... Cells are closely joined Covers body surface and lines hollow organs, body cavities, and ducts ...
calcium homoestasis
calcium homoestasis

... 3. Osteoclasts is a large multinucleated cell derived from monocytes whose function is to resorb bone. • These cells are responsible for Bone remodeling which is a process which continues throughout life, long after epiphyseal fusion and cessation of linear growth of bone. • Remodeling consists of b ...
Bacterial cell Septum Bacterial chromosome: Double
Bacterial cell Septum Bacterial chromosome: Double

... Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Prokaryotes No nucleus, usually have single circular chromosome. After DNA is replicated, it is partitioned in the cell. After cell elongation, FtsZ protein assembles into a ring and facilitates septation a ...
Science - The Digital Frog 2
Science - The Digital Frog 2

... Anatomy section: Digestive System screens entire Dissection section of CD, entire Anatomy section of CD *note: a comparison to human anatomy is found throughout the Anatomy section on the CD ...
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C274/SQP368 Biology NATIONAL QUALIFICATIONS

... GLUT 4 glucose transporter proteins in the cytoplasm are recruited into the membrane to take in glucose. Type 2 diabetes is associated with insulin resistance in which cells are less able to respond to insulin in this way. ...
Internalization of Invasin-bearing Bacteria by Eukaryotic Cells Is
Internalization of Invasin-bearing Bacteria by Eukaryotic Cells Is

... Rabbit anti-E. coli antiserum was obtained from Axell (Accurate Chemical, Westbury, NY) . Monoclonal anti-E. coli OmpF was obtained from Biodesign International (Kennebunkport, ME) . Monospecific, polyclonal goat and-ß1 serum was a gift of Martin Hemler (Dana Farber Cancer Institute, Boston, MA) (Ch ...
Development of zebrafish epidermis
Development of zebrafish epidermis

... hand, the EBL starts to form at the gastrula period after formation of the three embryonic layers. During gastrulation stage, the three germ layers, ectoderm, mesoderm, and, endoderm, are formed and cell specification is turned on (Heisenberg and Tada, 2002). Epidermal ectoderm (the EBL), preplacoda ...
Document
Document

... Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Prokaryotes No nucleus, usually have single circular chromosome. After DNA is replicated, it is partitioned in the cell. After cell elongation, FtsZ protein assembles into a ring and facilitates septation a ...
Homologous chromosomes Homologous chromosomes Sister
Homologous chromosomes Homologous chromosomes Sister

... remains intact during cell division. Chromosomes line up. Microtubule fibers pass through tunnels in the nuclear membrane and set up an axis for separation of replicated chromosomes, and cell division. ...
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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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