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General Biology – Chapter 5 Notes on Active Transport Systems
General Biology – Chapter 5 Notes on Active Transport Systems

... pump outside the cell, there are two potassium ions being pumped into the cell. Because these ions are being pumped against their concentration gradient, the cell must use energy (ATP) to make it happen. Refer to the reference transparency in your book. You must be able to describe the details of th ...
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The lead-acid cell

... 2H+ + 2e– → H2 If Pb2+ had been present in the solution, then Pb metal would form at this electrode instead. ...
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Animal Systems

... ________________________ acquire energy from organic molecules made by other organisms __________________________________ harvests the chemical energy from food which is stored as ______; this energy is then used for _______ or lost as _________ Metabolic rate Total amount of ___________ and anim ...
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Topic: What I KNOW What I WANT to know HOW I can learn more

... Is chlorophyll seen throughout the plant cell? Can I see the chromosomes in each cell’s nucleus? Do the sizes of the organelles in the animal cells differ from the size of the organelles in the plant cells? What does a centriole do? ...
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Organ - cloudfront.net

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Enzymes have an optimum temperature at which they work best

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Professor Subhash Padhye - Department of Chemistry

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Cells Level Ladder File

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AP Biology – Unit 1 Review Terms/Questions Use this to help you

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... (circulatory) system, human life would not be possible. The heart is roughly the size of a fist. It contracts at an average rate of 72 times per minute or nearly 38,000,000 times in a year. These rhythmic contractions are called the pulse rate and can be felt in the radial artery of the wrist. 8. Th ...
cells and organelles
cells and organelles

... 17. Give 3 jobs for smooth ER. a. b. c. Chloroplasts are elongated or disc-shaped organelles containing chlorophyll that trap sunlight for energy. Photosynthesis (in which energy from sunlight is converted into chemical energy - food) takes place in the chloroplasts. Only plant cells, not animal cel ...
Bio 1 Unit 2
Bio 1 Unit 2

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Cells Power point

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Mineral Ions in Plants

... If a plant cell is surrounded by water a solution more dilute than its contents, water will pass into it via osmosis. The vacuole will expand and press outwards on the cell wall and cytoplasm. The cell wall of a mature plant cell cannot be stretched so the water stops coming in when the cell wall is ...
ORGANIZATION OF LIVING THINGS
ORGANIZATION OF LIVING THINGS

... Types of cells. The cells can be classified into prokaryotic cells or eukaryotic cells.  Prokariotic cells. Their DNA placed in the cytoplasm. It is the characteristic cell of Monera kingdom organisms (bacteria).  Eukaryotic cells. Their DNA is placed inside a compartment, called the nucleus. It ...
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... 25. Generally speaking , stratified ephheHa consisting of several cell layers are mo re effective w here abrasion is a pro blem than are simple epithe lia (consisting of one cell layer). 26. Streptomycin inhibits bacte rial protein synthesis. If the bacreria are unable r.o synthes ize new protei ...
Cell Theory ppt
Cell Theory ppt

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< 1 ... 1317 1318 1319 1320 1321 1322 1323 1324 1325 ... 1638 >

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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