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2.6 The need for transport
2.6 The need for transport

... Capillaries • Capillaries allow exchange of materials between the blood and the cells of the body (O2, glucose). • Capillaries are only one cell thick to allow easier/quicker diffusion of materials. •Capillaries also provide a large surface area for exchange. ...
LB145-lecture4
LB145-lecture4

... heterotrophic prokaryote ...
PowerPoint
PowerPoint

...  Erythrocytes (red blood cells, RBCs)  Contain hemoglobin  Non-nucleated in mammals ...
Protists Topics in Biodiversity
Protists Topics in Biodiversity

... All five groups of protozoans include some sessile species but most are swimmers. Ciliates use their many tiny cilia, in controlled waves, to propel themselves through the water. Flagellates have a single posterior flagella that pushes them forward in much the same way as a motor boat uses its prope ...
Diffusion and pollutants
Diffusion and pollutants

... inhale these as well, and that this makes us ill and alters our ability to fully develop. Part 2: In this part, students will be introduced to the Deliver Change AirSensa data. Teachers can either retrieve the data from their school’s own individual device, if applicable, or use a prepared data set ...
Microbes Overview
Microbes Overview

... Viruses – miniscule, infectious agent with simple acellular organization and pattern of reproduction Viruses can exist – extracellular or intracellular Virion (complete virus particle) consist of : - nucleocapsid (composed of 1 or more DNA or RNA, held within capsid) - in some viruses – envelope (ph ...
Chapter One: Introduction
Chapter One: Introduction

... In anatomy the abdomen is divided into nine regions. Write the names of the regions in the spaces indicated. Color both the left and right hypochondriac regions in light blue. Hypochondriac means "below the cartilage." The common use of the word (someone who thinks they are sick all the time) reflec ...
Chapter 9 Notes
Chapter 9 Notes

... Circulatory system carries digested food substances to cells of the body Nutrients travel around (over and through each cell) Waste molecules pass from cells back into the bloodstream (through capillary walls) Circulatory system helps dispose of waste products and toxic materials (such as salts) ...
Immune System lecture
Immune System lecture

...  Immune system exposed to harmless version of pathogen triggers active immunity  stimulates immune system to produce antibodies to invader  rapid response if ...
The cytoskeletal system, motor proteins Cyto + SKELETON
The cytoskeletal system, motor proteins Cyto + SKELETON

... http://www.microscopyu.com/articles/fluorescence/filtercubes/yfp/yfphyq/stains/yfpcy2keratinptk2cells.html http://www.lajollaneuroscience.org/sr/homepage/cell/scientific_art_gallery/pasquale.htm ...
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...  respire through their skins  Gills  feathery structures that expose a large surface area to the water. Gills are rich in blood vessels that bring blood close to the surface for gas exchange.  Book lungs  parallel, sheetlike layers of thin tissues that contain blood vessels.  Spiracles  in in ...
Physiology Acknowledgement Form Review questions provide
Physiology Acknowledgement Form Review questions provide

... List 4 ways to minimize the risk of lung overexpansion. 42. __________________________________________________________ 43. __________________________________________________________ 44. __________________________________________________________ 45. ___________________________________________________ ...
Organ Systems: Endocrine (hormones) - Jocha
Organ Systems: Endocrine (hormones) - Jocha

... enzyme reaction via a “second” messenger ...
To learn more about preventing skin cancer, click here.
To learn more about preventing skin cancer, click here.

... diagnosed in more than 1 million people in the United States each year. Cancer occurs when normal cells undergo a transformation during which they grow and multiply without normal controls. These cells are only cancerous if they are malignant. Skin cancer has three main types: basal cell, squamous c ...
H ions
H ions

... Carrier Proteins and Ion Channels Glucose, sodium ions and chloride ions are just a few examples of molecules and ions that must efficiently get across the plasma membrane but to which the lipid bilayer of the membrane is impermeable. Their transport must therefore be "facilitated" by proteins that ...
Tissues
Tissues

... edge are flattened – Function: Protection of underlying areas where friction is common – Present in: • Skin • Mouth • Esophagus ...
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... normally. As a result, a person who has emphysema may have high blood acidity levels. The body process that would attempt to return the blood pH to normal so that cells could function properly is called _?_. a. Active transport c. Acidosis b. Adaptation d. Homeostasis ...
Topic Histology of liver And Gall bladder
Topic Histology of liver And Gall bladder

...  These rows are one cell wide and are surrounded by sinusoidal capillaries or sinusoids.  This arrangement ensures that each hepatocyte is in very close contact with blood flowing through the sinusoids, i.e. bathed in blood.  Hepatocytes  They are large cells.  Nucleus is large and rounded wit ...
connective tissue
connective tissue

... muscular tissue ...
Samurai sword protein makes strategic cuts in cell
Samurai sword protein makes strategic cuts in cell

... But there are many cell types that have ordered microtubule arrays that aren't created by The cells Dixit's lab use are from a lineage of centrosomes. Some nerve cells, for example, have Arabidopsis plants created by Erica Fishel, PhD, very long projections (axons) that are chock full of then a WUST ...
Viruses - TeacherWeb
Viruses - TeacherWeb

... Viral Basics ...
Slide 1
Slide 1

... Controlled secretion of H+ and reabsorption of bicarbonate ions help regulate blood pH Secretion also includes active transport of drugs and poisons Reabsorption of salts and urea allow osmotic reabsorption of water ...
Ribosomes
Ribosomes

... “optical sectioning” of fluorescently-stained specimens. Only a single plane of focus is illuminated; out-of-focus fluorescence above and below the plane is subtracted by a computer. A sharp image results, as seen in stained nervous tissue (top), where nerve cells are green, support cells are red, a ...
Cell Taxonomy: How are organisms grouped?
Cell Taxonomy: How are organisms grouped?

... Today, we are going to look at cells from Bacteria, Protists, Fungi, Plants, and Animals. Based on what you’ve learned about taxonomy and how scientists group things, see if you can figure out the differences (and likenesses) in these cells from different types of organisms. ...
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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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