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Glucose transport proteins
Glucose transport proteins

... lipid bilayer structure. Refer to a standard text book for a review of this. I will emphasize just one important point here; most metabolically active water-soluble materials are effectively hindered from crossing these membranes. Small channels are found in these membranes and these do allow low-mo ...
Biology: Concepts and Connections, 6e (Campbell)
Biology: Concepts and Connections, 6e (Campbell)

... D) Diffusion occurs when particles spread from areas where they are less concentrated to areas where they are more concentrated. E) Diffusion occurs even after equilibrium is reached and no net change is apparent. Answer: D 12) Diffusion does not require the cell to expend ATP. Therefore, diffusion ...
Biol 106 Spring 20 106 Spring 20 106 Spring 2010 Exam 3 1) Which
Biol 106 Spring 20 106 Spring 20 106 Spring 2010 Exam 3 1) Which

... b) Flow through ventilation in the bird lung c) counter current exchange across fish gill filaments d) 50% oxygenation of the blood 7) In long-term stress, which of the following occurs FIRST: a) ACTH production b) Releasing hormone production c) Protein breakdown d) Corticosteroid production 8) Oxy ...
Ch3-A
Ch3-A

...  Cells are the building blocks of all living things  Tissues are groups of cells that are similar in structure and function ...
The Lunar Cycle - University of South Florida
The Lunar Cycle - University of South Florida

... When you inhale, you breathe in air and send it down to your lungs. Blood is pumped from the heart to your lungs, where oxygen from the air you've breathed in gets mixed with it. That oxygen-rich blood then travels back to the heart where it is pumped through arteries and capillaries to the whole bo ...
Cytoskeletal rearrangements in gastric epithelial cells in response to
Cytoskeletal rearrangements in gastric epithelial cells in response to

... Herein, we observed similar effects with both type I and type II H. pylori strains, thereby confirming the work of Palovuori et al. (2000). Cell morphology changes were observed not only using AGS cells, but also in other epithelial cell types, including HEp-2 cells and T84 cells that have previousl ...
introduction-to-anatomy2
introduction-to-anatomy2

... spread fingers or toes together • Flexion and extension movements generally occur in sagittal planes around a transverse axis ...
THE CELL CYCLE OF PHYTOPLANKTON : COUPLING CELL
THE CELL CYCLE OF PHYTOPLANKTON : COUPLING CELL

... Pelc demonstrated that DNA synthesis was not continuous in eukaryotes but restricted to a specific phase they called S, for synthesis (Figure 1A). This phase is preceded by a first gap (G1 ) and separated from mitosis (M) by a second gap (G2 ). Gametic cells of diploid organisms undergo a differenti ...
Raven/Johnson Biology 8e
Raven/Johnson Biology 8e

... The correct answer is c—the volume of the cell C. Answer c is correct. The surface-area-to-volume ratio of the cell is the limiting factor. As volume increases, the surface also increases, but by much less than the volume because surface area is a function of the square of the radius while volume is ...
23 The Hematologic and Lymphatic Systems
23 The Hematologic and Lymphatic Systems

... maturation of blood cells. The red bone marrow manufactures all blood cells, or “formed elements,” in blood. Other tissues, such as tissues of the lymph nodes, spleen, and thymus, contribute to additional production and maturation of agranular white blood cells. Erythropoiesis refers to the formatio ...
Contribution of calcium-conducting channels to the transport of
Contribution of calcium-conducting channels to the transport of

... be permeable to Zn [62]. After these pioneering studies on muscle cells, most of the data available so far on the contribution of VGCC to the transport of Zn come from experiments carried out on brain cells and particularly on cultured cortical neurons. Indirect arguments in favor of VGCC as Zn entr ...
Mammalian Cdc7–Dbf4 protein kinase complex is essential for
Mammalian Cdc7–Dbf4 protein kinase complex is essential for

... temperature with a 1C DNA content with high activities of Cdks, indicating that Cdc7 function is required for the onset of DNA synthesis (Amon et al., 1992). Like the Cdks, whose activities require association with their regulatory subunit cyclins, Cdc7 kinase activity requires its own regulatory su ...
Nonhost resistance and nonspecific plant defenses Michèle C Heath
Nonhost resistance and nonspecific plant defenses Michèle C Heath

... that control the HR response to bacterial pathogens in resistant hosts also seem to act as pathogenicity (pth) genes in susceptible plants. Gabriel [18•] has recently argued that, because of horizontal gene transfer between bacteria, some avr genes may be maladapted pth genes that ‘inadvertently’ el ...
The World of Cells Kinds of Cells Tour of a Eukaryotic Cell Transport
The World of Cells Kinds of Cells Tour of a Eukaryotic Cell Transport

... having a greater surface-to-volume ratio. As cell size increases, volume grows much more rapidly than surface area (figure 4.2). For a round cell, surface area increases as the square of diameter, whereas volume increases as the cube. Thus a cell with 10 times greater diameter would have 100 (102) ti ...
Circulatory System
Circulatory System

... or burst ...
3 Relation between the systems involved in nutrition
3 Relation between the systems involved in nutrition

... • Exchange of substances in the digestive system • Exchange of substances in the respiratory system • Exchange of substances in the circulatory system and in the lymphatic system • Exchange of substances in the excretory system and in other organs ...
Chapter 3 Cells- Structure & Function Part II
Chapter 3 Cells- Structure & Function Part II

... membrane by fluid, or hydrostatic pressure  Ex: Blood pressure forces small molecules & water out through capillary walls creating tissue fluid while larger protein molecules remain inside capillary. ...
Paramecium trichocysts isolated with their membranes are stable in
Paramecium trichocysts isolated with their membranes are stable in

... Asymmetric particle distribution in trichocyst membranes Allen & Hausmann (1976) first reported an asymmetric particle distribution in trichocyst membranes, which they observed by freeze-fracture of glutaraldehyde-fixed Paramedum caudatum cells. As illustrated in Fig. 2, we observe a highly asymmetr ...
Infusion Therapy - Faculty Sites
Infusion Therapy - Faculty Sites

... • Indentified by insertion site (i.e. – Subclavian, Jugular, Femoral) • Inserted by physicians or advanced practice clinicians • Insertion requires – sterile technique and maximum barrier precautions • Complications – pneumothorax, air embolism, arrhythmias • Once inserted secured – sutures, stat lo ...
Mycobacterium tuberculosis
Mycobacterium tuberculosis

... with commonly used basic aniline dyes , such as these used in the Gram stain . 4. These organisms resist decolorization by acidified alcohol (3% hydrochloric acid ) after prolonged application of a basic fuchsin dye or with heating of this dye following its application . 5. This important property o ...
B - AIDS Clinical Trials Group
B - AIDS Clinical Trials Group

... to weaken or reduce the level of virulence. An attenuated virus has a diminished ability to cause disease, and may be used in vaccines. An attenuated virus is a virus that is still alive but incapable of causing harm. AUC area under the curve. The drug concentration in plasma during its dosing cycle ...
2008 Review Questions
2008 Review Questions

... 44. What are the substances most commonly reabsorbed in the proximal tubule? How? 45. What happens in the distal tubule? 46. How do aldosterone and vasopressin (ADH) work together to maintain fluid volume in the body? 47. How are the loop of Henle and collecting duct each involved in creating and ma ...
AIDS Clinical Trials Group
AIDS Clinical Trials Group

... to weaken or reduce the level of virulence. An attenuated virus has a diminished ability to cause disease, and may be used in vaccines. An attenuated virus is a virus that is still alive but incapable of causing harm. AUC area under the curve. The drug concentration in plasma during its dosing cycle ...
Characterization of Dependencies Between Growth and
Characterization of Dependencies Between Growth and

... Wilcoxon rank sum tests in the three datasets (Figure 2 and Table I). For this analysis, we separated mother and daughter S/G2 /M durations. We used a subset of the mother cells since some S/G2 /M durations were associated with the same mother in different, consecutive cell cycles (see Supplement fo ...
Biology I Syllabus
Biology I Syllabus

...  Describe the difference in ions and atoms and their importance in biological processes?  Compare the types of bonding between atoms to form molecules?  Explain the fundamental principles of the pH scale and the consequences of having the different concentrations of H+ and OH-?  Explain the uniq ...
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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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