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Virus PPT Pre-AP 14-15
Virus PPT Pre-AP 14-15

... acid (DNA or RNA), wrapped in protein coat a. they have no nucleus, no organelles, no cytoplasm or cell membrane – non-cellular particle b. viruses have either – DNA or RNA, but not both ...
Quiz 13A
Quiz 13A

... photosynthesis takes place. It is structural tissue called parenchyma. ...
pdf
pdf

... the process by which the food is broken down into simple soluble substances that the body can absorb and use for growth and energy. faeces /fi:si: z/ solid waste from the body = excrement. humerus the bone connecting the shoulder to the elbow. kidney the organ which cleans the blood by removing was ...
Living Cells
Living Cells

... the process of diffusion when the level or concentration of O2 inside the cell decreases. Thus, diffusion plays an important role in gaseous exchange between the cells as well as the cell and its external environment. Water also obeys the law of diffusion. The movement of water molecules through suc ...
Comparison of Plant Cell Wall to Buildings Engineered to Survive
Comparison of Plant Cell Wall to Buildings Engineered to Survive

... the final structure (Alberts 2009). The cell wall is a complex interwoven structure that resists compression and tension as well as determines how the plant will elongate in the long run (Alberts 2009). The interweaving of proteins along stress lines also allows it to undergo a great deal of compres ...
The Plasma Membrane
The Plasma Membrane

... • Cholesterol keeps the fatty acid tails from sticking together, keeps the membrane stable. ...
Section 2: Enzymes and Digestion
Section 2: Enzymes and Digestion

... so that they can be absorbed. This is carried out by enzymes. Enzymes function by hydrolysis. Hydrolysis is the process of splitting up molecules by adding water to the bonds that hold them together. The general term for these enzymes is hydrolases. Because enzymes are specific, more than one is nee ...
Life in temporary waters
Life in temporary waters

... they live in ahyptonic environement or continuously take in water to offset osmotic loss if they inhabit a hypertonic environment. The ability to osmoregulate enables animals to live, for example, in fresh water, where the osmolarity is too low to support cellular life, and on land, where water is u ...
Condition-Dependent Cell Volume and Concentration of
Condition-Dependent Cell Volume and Concentration of

... often studied model bacterium Escherichia coli this information is hardly available and furthermore, certain measures (e.g. cell volume) are also dependent on the growth condition. In this work, we have determined these basic data for E. coli cells when grown in 22 different conditions so that respe ...
Alan`s DAT Biology Notes edited by scsc7211
Alan`s DAT Biology Notes edited by scsc7211

... Polygenic inheritance: The interaction of many genes to shape a single phenotype. Polygenic inheritance is the opposite of pleiotropy. Ex: human height Sex-Linked Inheritance (X-linked)–much more common in MALES- gene carried on X chromosome; ex hemophilia & color blindness X-Inactivation- During em ...
Setlhare G (M. tech) Supervisor: Dr NJ Malebo Co
Setlhare G (M. tech) Supervisor: Dr NJ Malebo Co

...  and as a consequent decrease in membrane rigidity as noticeable by SEM examination ...
Simple Invertebrates
Simple Invertebrates

... – The way food is digested and/or absorbed (Digestive System) • Digestive system – the organs/structures used to break down food ...
LIPIDS IN MEMBRANES –
LIPIDS IN MEMBRANES –

... cellular function, i.e. the membrane proteins which float laterally within the membrane. However, a large variety of lipids of different structure were found to reside in plasma membranes, much more than one would expect for just performing the functions of frame giving / compartmentation. Biophysic ...
Editorial What is the true resting potential of small cells?
Editorial What is the true resting potential of small cells?

... solution. Moreover, in both of the above techniques, the membrane potential of cells with high membrane resistance can be influenced by junction potentials between the recording electrode and the cytoplasm or by small offset currents delivered by the recording amplifier or the electrical stimulator. An ...
Curcumin
Curcumin

... the set of aroma compounds studied, curcumin and were shown to possess the strongest cytotoxic properties (15.0±5.0 μM and 16.5±6.7 μM, respectively). Low cytotoxicity and influence on HeLa cell viability was demonstrated for salicylic acid, geranic acid, and isobutylangelate. Keywords: cytotoxicity ...
in this issue - Credence MedSystems
in this issue - Credence MedSystems

... moment of use, greatly improving cold-chain ...
The Cytoplasm of a Cell and the Courtyard of a Siheyuan
The Cytoplasm of a Cell and the Courtyard of a Siheyuan

... by specific organelles that suspend in the cytoplasm. This design of cytoplasm allows the metabolic activities within the cell to work most efficiently and naturally (Nair, 2010).             The history of Siheyuan can be traced back to 3000 years ago. It originates from the Zhou Dynasty of ancient ...
The Digestive System
The Digestive System

... Bile emulsifies fats; breaking them down into small droplets which give the digestive enzymes a large surface area to work on. ...
Chapter 4: The Tissue Level of Organization
Chapter 4: The Tissue Level of Organization

... Several cell types: varying shapes and functions All cells contact basal lamina Some too short to reach apical surface ...
Largest phylum on earth Examples: spiders, ticks
Largest phylum on earth Examples: spiders, ticks

... Characteristics of Amphibians -_____________________to support weight -Developed respiratory system with __________ -Moist skin that absorbs additional oxygen __________________________ -Advanced nervous system with ________________ Hello! ...
EDU-Thiede_SuppMaterials
EDU-Thiede_SuppMaterials

... hormones everywhere in the body. A hormone does not interact with all organs in the body. It interacts with only certain cells that recognize the hormone’s chemical structure. These are called target cells. Hormones will travel through the bloodstream until they find target cells that they fit. Targ ...
Profile
Profile

... Boxes ...
Correct Proteolytic Cleavage Is Required for the Cell Adhesive
Correct Proteolytic Cleavage Is Required for the Cell Adhesive

... et al., 1989). Members of this group express their adhesive properties only in the presence of Ca 2+, and Ca 2÷ protects these proteins from proteolytic degradation (Takeichi, 1977; Hyafil et al., 1981; Gallin et al., 1983). The extracellular parts of the proteins are largely composed of repeating d ...
02 M301 Spec Exam&Cult 2011 - Cal State LA
02 M301 Spec Exam&Cult 2011 - Cal State LA

...  Microbial antigen (specific antibody, i.e. ELISA)  Microbial nucleic acid - sensitive, need 1 copy, amplification of DNA, i.e. PCR; RT-PCR (RNA reverse transcribe to DNA) ...
Chapter 9- Taxonomy and the World of Microorganisms and Viruses
Chapter 9- Taxonomy and the World of Microorganisms and Viruses

... treatment by antibiotics or other drugs, but some can be prevented by vaccines • Vaccines are mixtures that contain weakened or dead forms of a virus. B-cells retain memory of the disease so immune system can react quickly when exposed to real virus. http://www.scienceclarified.com/scitech/Bacteria ...
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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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