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Kingdom Animalia - hrsbstaff.ednet.ns.ca
Kingdom Animalia - hrsbstaff.ednet.ns.ca

... So, what exactly is an "animal"? With so many different kinds of animals, it's hard to imagine what they all might have in common. First, animals are multicellular. This means they are made of many cells, unlike bacteria, which are made of only one cell. Second, all animals are heterotrophs; they mu ...
Lecture #11 * Animal Circulation and Gas Exchange Systems
Lecture #11 * Animal Circulation and Gas Exchange Systems

... During the last ten years three oceanographic expeditions were conducted to search for the presence of living fauna in the sediments of the deep anoxic hypersaline L'Atalante basin (Mediterranean Sea). We report here that the sediments of the L'Atalante basin are inhabited by three species of the an ...
500KB - NZQA
500KB - NZQA

... concentration, and poisons. Temperature – all enzymes have an optimum temperature. At very low temperatures, enzyme action slows, and at high temperatures the 3D shape may change and denature. Denaturing is irreversible and means the enzyme is inactive. Substrate – an increase in substrate concentra ...
The tetrazolium reduction method for assessing the viability of
The tetrazolium reduction method for assessing the viability of

... is even more difficult. However, bacterial cells with such a low ETS activity probably do not have an important metabolic role relative to the whole community. A more serious difficulty of the method of the dissolution of intracellular formazan which occurs during the storage of fixed samples. The s ...
Autonomic Nervous System
Autonomic Nervous System

... b. Postganglionic neuron- The cell body of this neuron is located in an autonomic ganglion outside the CNS. 2. Only three types of structures are innervated by the autonomic nervous system (ANS). a. Smooth muscle (viscera, blood vessels, etc.) b. Cardiac Muscle c. Glands d. Note: some research paper ...
CVI Accepts, published online ahead of print on 8 November... Clin. Vaccine Immunol. doi:10.1128/CVI.00296-06
CVI Accepts, published online ahead of print on 8 November... Clin. Vaccine Immunol. doi:10.1128/CVI.00296-06

... is the target of therapeutic antibodies (3, 11, 17, 19). As the major constituent of the capsule it is the primary component of a structure that is antiphagocytic and thus protects the fungal cell from immune cells. However, cryptococcal infections are also associated with the release of large amoun ...
21 Blood - Orange Coast College
21 Blood - Orange Coast College

... Form a very minor class of plasma proteins. ...
More than just your blood vessels and heart may be harmed from
More than just your blood vessels and heart may be harmed from

... Between each atrium and ventricle are flaplike structures called valves, these prevent blood from being pumped backwards. Feel your heart, can you hear it beating. The lub-dub, lub-dub sound…That is the noise of the valves closing. In figure 3 it shows the flow of blood throughout the heart. ...
Lab Module 4 - philipdarrenjones.com
Lab Module 4 - philipdarrenjones.com

... Epithelial tissues, also referred to as epithelium, are of two general types: (1) covering and lining epithelium, and (2) glandular epithelium. We will be learning about covering and lining epithelium. It is located on body surfaces, inside and out, and line passageways through the body, like the di ...
Switching activity based estimation of IR-drop
Switching activity based estimation of IR-drop

... • First idea: estimated current is overestimated due to cell toggles at the same time • In reality cells toggle at different points in time and need not increase current Hence, a more accurate algorithm to calculate the powerline current is needed. ...
Lesson Plan - Science North
Lesson Plan - Science North

... untreated - from a stream, pond or puddle. (If you take the students out to collect the pond water, have them make observations of the microorganisms found in the water). The container should be kept at room temperature. Initially bacteria will grow (and perhaps create an odour). The bacteria are fo ...
Cells are the basic units of all living things.
Cells are the basic units of all living things.

... animals, including humans, in an effort to find out. They were very curious about how living things worked. They also needed to know how organisms like the human body worked in order to treat diseases and injuries (Figure 1.2). As early scientists continued their inquiries, they began to cut dead or ...
Introduction to Twedit++-CC3D
Introduction to Twedit++-CC3D

... • Up to 10 files need to be generated or modified • Twedit++ autogenerates a working plugin or steppable for you freeing you from error-prone manual process • Twedit++ has C++ code assistant which is not as comprehensive as Python or CC3DML assistants but we can certainly change it. Your input is gr ...
Evolutionary cell biology: Two origins, one objective
Evolutionary cell biology: Two origins, one objective

... a full mechanistic understanding of evolutionary processes will never be achieved without an elucidation of how cellular features become established and modified. The time is ripe for bridging the gap between the historically disconnected fields of cell biology and evolutionary biology and integrati ...
Scholarly Interest Report
Scholarly Interest Report

... A fundamental problem in biology is how cells sense and respond to stimuli such as changes in pressure, osmolarity, or mechanical forces. Most of our research employs the yeast Saccharomyces cerevisiae as a model system for understanding the molecular mechanisms required for sensing and responding t ...
Bee Anatomy and Physiology
Bee Anatomy and Physiology

... pathogens. The exo skeleton is made of a material called Chitin The body of the bee is covered with setae or branched hair ...
BY-2 cells upon UV and SA, arcA3 expression
BY-2 cells upon UV and SA, arcA3 expression

... (Landry et al., 1997). Therefore, studies of UV irradiationinduced delay during cell cycle progression to allow DNA repair are pertinent. After UV-irradiation two pathways for gene activation should be considered, one response which is initiated at or near the plasma membrane and another pathway eli ...
Calcium-sensing receptors in bone cells
Calcium-sensing receptors in bone cells

... CaR, while others indicate that at least three different Ca2+osensors contribute to cation sensing in osteoblasts and osteoclasts. This presentation reviewed the evidence supporting the existence of one or several Ca2+o-sensors in bone cells, discussed the future use of cellular, molecular and genet ...
Bryce Hennings & Brooke Taylor
Bryce Hennings & Brooke Taylor

... • Oxygen taken up into the lungs is transported to the tissues by circulatory system • Is then exchanged for carbon dioxide produced by metabolism in body cells • Carbon dioxide can dissolve in blood which forms bicarbonate (base) and smaller amounts of carbonic acid (acid). ...
5. Tissue Organization
5. Tissue Organization

... basal surface, attached to underlying tissue. Adjacent cells are bound tightly together, often with specialized connections such as tight junctions and desmosomes. Why is this particularly important for epithelia? C. Attachment to a basement membrane. Sheets of epithelial tissue are supported by und ...
Lec-2 Cell Structure
Lec-2 Cell Structure

... The membrane has pores large enough for the molecules to pass through. Random movement of the molecules will cause some to pass through the pores; this will happen more often on the side with more molecules. The dye diffuses from where it is more concentrated to where it is less concentrated This le ...
Fischbarg 2010 review
Fischbarg 2010 review

... experimental and theoretical headway. As we have reported, transendothelial fluid movements can be generated by electrical currents as long as there is tight junction integrity. The direction of the fluid movement can be reversed by current reversal or by changing junctional electrical charges by po ...
Limits to Cell Size
Limits to Cell Size

... Cells are the basic units of life. When cells become damaged, or simply grow too old, and need to be replaced, they undergo division: mitosis and cytokinesis. Also, when an organism grows in size, it’s due to the replication and reproduction of cells. Large organisms are large not because they posse ...
Chapter 1 ~ An Introduction to the structure and
Chapter 1 ~ An Introduction to the structure and

... Different terms are used for the smaller areas of the body and they are the ...
Modulation of the Cell Cycle-dependent
Modulation of the Cell Cycle-dependent

... NOVO may act through a mechanism which resulted in an increase in the level of toxic 4-OOH-CP metabolites. The precise mechanism by which this may occur is not yet known. DISCUSSION The problem of acquired drug resistance to antineoplastic agents by cancer cells is currently attracting a good deal o ...
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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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