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PowerPoint Presentation - Structure and Function in Living Systems
PowerPoint Presentation - Structure and Function in Living Systems

... caused by electrolytes in batteries. The positive and negative charges of the ions cause them to move toward concentrations of the opposite charge. Electrolytes such as sodium, potassium, calcium, magnesium, and chloride ions in the human body help fluids flow across cell membranes and help nerve im ...
40animal homeostasis
40animal homeostasis

... Size and Metabolic Rate • Metabolic rate is proportional to body mass to the power of three quarters (m3/4) • Smaller animals have higher metabolic rates per gram than larger animals! • The higher metabolic rate of smaller animals leads to a higher oxygen delivery rate, breathing rate, heart rate, ...
New approaches to the management of the patient with SCD and CKD
New approaches to the management of the patient with SCD and CKD

... As glomerulosclerosis progresses GFR starts to decrease and nonselective proteinuria leading to CKD/ESRD. RBC sickling in the vasa rectae interferes with the countercurrent exchange mechanism in the inner medulla. The resulting impairment of free water resorption manifests ...
Buchanan - National Center for Macromolecular Imaging
Buchanan - National Center for Macromolecular Imaging

... Goal 1 includes three main steps • Identify complement of protein complexes and their components • Elucidate function and dynamics of complexes— intermediates, nature of interactions, cellular location, kinetics • Establish how changes arising from environmental stress, development, etc., affect co ...
heart, blood vessels, and blood
heart, blood vessels, and blood

... • The “thump-thump” of a heartbeat is the sound made by the four valves of the heart closing. • Cocaine affects the heart’s electrical activity and causes spasm of the arteries, which can lead to a heart attack or stroke, even in healthy people • A woman’s heart typically beats faster than a man’s. ...
Notes- Nerve Impulses and Junctions
Notes- Nerve Impulses and Junctions

... FACT 1: Lentils represent sodium ions. There are more sodium ions outside the nerve cell than inside, so there are more pintos in the “outside” pan. Lima beans represent potassium ions, pinto beans represent chloride ions, and the wads of construction paper represent proteins. In a real cell, there ...
Passive Transport
Passive Transport

... diffusion of ions. Carrier proteins bind and carry the molecules across the cell membrane. These proteins bind a molecule on one side of the membrane, change shape as they carry the molecule across the membrane, and deposit the molecule on the other side of the membrane. Even though a protein is inv ...
Diversity of Life
Diversity of Life

... This makes studying organisms easier. If you know how an organism is classified, you can determine characteristics of the organism. Taxonomy – the scientific study of how organisms are classified Carolus Linnaeus – considered the Father of Taxonomy His system of classification grouped organisms base ...
Blood histology Dr. Anshu Kacker
Blood histology Dr. Anshu Kacker

... (mostly bone marrow, in the adult), do not develop or replicate in the circulation, and have a limited lifespan. • RBCs and platelets function within the blood vasculature. • With the exception of the basophil, WBCs exit the vessels and exert their effects within body tissues. • The normal proportio ...
Body Systems Notes
Body Systems Notes

... – Gases are carried within the blood. ...
Biology B3
Biology B3

... Very hot conditions can can be converted to losing weight and lead to heat stroke. This And if your kidneys stop working… in your blood. It glycogen if it is not needed. can also be caused by exercise can help can produce two You need this overheating during High carbohydrate diets are frequently an ...
ap bio ch 6 study guide
ap bio ch 6 study guide

... Cells that exchange a lot of material with their surroundings, such as intestinal cells, may have long, thin projections from the cell surface called microvilli, which increase the surface area without significantly increasing the cell volume. ...
Publications de l`équipe
Publications de l`équipe

... In multicellular organisms, distant cells can exchange information by sending out signals composed of single molecules or, as increasingly exemplified in the literature, via complex packets stuffed with a selection of proteins, lipids, and nucleic acids, called extracellular vesicles (EVs; also known ...
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... Wee1, cdc25 phosphatase & cdc13 (cyclins) regulate function of cdc2 MPF activity regulated by inhibitory phosphorylation Cdc2 + cyclin B = inactive MPF MPF kept inactive by wee1kinase, which phosphorylates cdc2 on Y15, and MO15 kinase which phosphorylates T160. Mitosis is initiated when phosphate on ...
The structure and function of the respiratory system.
The structure and function of the respiratory system.

... • This means that your O2 consumption increases. • This is measured by your VO2 which is basically the volume of oxygen you body uses in one minute. • The maximum it reaches is called your VO2max. The fitter your are, the higher this is. ...
Animals
Animals

... into:  Endoderm – innermost layer  Mesoderm – middle layer  Ectoderm – outermost layer ...
Biology - Fall Semester Final Exam 2013-2014
Biology - Fall Semester Final Exam 2013-2014

... Passage of water molecules through a semi-permeable membrane to equalize concentration ...
THE HUMAN BODY SYSTEMS
THE HUMAN BODY SYSTEMS

... - Compact bone: Strong, dense bone that forms the outer layer of your bones. This is the material which gives bones their strength. - Spongy bone: Light-weight, porous (full of holes) bone found under the compact bone. Blood vessels and nerves run through spongy bone. - Red marrow: Soft tissue that ...
Step One - thesciencebeat
Step One - thesciencebeat

... Complete each task. Check off task as you complete. ...
Posters – Immunology and Oncology NAME OF THE PROJECT
Posters – Immunology and Oncology NAME OF THE PROJECT

... Despite the use of donor selection criteria (HLA histocompatibility, sex, age and medical history), there is no efficient way to predict acute GvHD. It was recently found that the amplification capacity of a rare T lymphocyte subpopulation in the graft was correlated to the occurrence and severity o ...
PPT - Hss-1.us
PPT - Hss-1.us

... Lysosomes: Lysosomes are organelles containing digestive enzymes (acid hydrolases). They are found in animal cells, while in plant cells the same roles are performed by the vacuole. They digest excess or worn-out organelles, food particles, and engulfed viruses or bacteria. The membrane surrounding ...
Cyanobacteria - U of L Class Index
Cyanobacteria - U of L Class Index

... in deep water containing some organic matter ...
Preview the test
Preview the test

... a) nephron. b) pericardium. c) alveoli. d) trachea. ...
Biology EOC Review - Lyman High School
Biology EOC Review - Lyman High School

... Between 60 and 80 per cent of the nitrates consumed in a normal Western diet come from vegetables, with beetroot, celery and spinach containing particularly high-levels of 1-3g per kilo. Studies in the 1970s suggested a link between high nitrate levels in drinking water and both stomach cancer and t ...
Ch 11 Cell Communication
Ch 11 Cell Communication

... Cell junctions. Both animals and plants have cell junctions that allow molecules to pass readily between adjacent cells without crossing plasma membranes. ...
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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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