Unit 5 Biology notes Contents Section 9.1 – Sensory Reception 3 Section 9.2 – Nervous Control 4 Section 9.3 – Control of heart rate 5 Section 9.4 – Role of receptors 6 Section 10.1 – Coordination 8 Section 10.2 – Neurons 10 Section 10.3 – The nerve impulse 11 Section 10.5 – The speed of a nerve impulse 12 Section 10.6/10.7 – Structure and function of the synapse / Transmission across
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Lourdes College Cor. Capistrano-Hayes Cagayan de Oro City Synthetic Multivitamins versus Herbal Vitamins: Their effects On Children A Term Paper Presented to: Anselma E. Inot Lourdes College Teacher In Partial Fulfillment of the Requirements in English 2 By: Joy I. Vasallo BS Pharmacy I 9:00A.M – 10:30A.M ACKNOWLEDGEMENTS “Showing gratitude is one of the simplest yet most powerful things human can do for each other.” With this‚ the author would like to express her gratitude to all the
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of how a pathway is controlled to avoid overproduction of compounds. CTP- nucleoside triphosophate needed to make RNA and DNA; an inhibitor of ATCase Feedback inhibition- general feature ofmetabolism where the end product of the sequence of reaction inhibits the first reaction in the series; it can shut down the reactions when the excess of final product exist. Sigmoidal curve- indicates cooperative behavior of enzymes. (ATCase: Aspartate is the substrate while carbomyl phosphate is constant)
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blood volume to move oxygen more efficiently through your bloodstream. An increase in V02 max (the maximum amount of oxygen the body can convert to work) = giving you more stamina for the long haul. Elevating capillary volume = creating more blood pathways to muscle cells for improved muscle oxygenation. Increasing the volume of mitochondria = the powerhouses in cells that help your body turn oxygen into energy. Increasing the lungs ’ ability = to exchange gases efficiently so that every breath you
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water-soluble vitamin‚ it means it is not stored in the body and they are excreted from the body through urine or feces. That is the reason why the body need regular supply of this vitamins in our diet. Its main function is to help the cellular metabolic pathway to convert food to energy. Niacin is found in poultry‚ tuna and other fish‚ enriched bread and cereals‚ beef‚ and peanuts. This vitamin can also be synthesized by our body from the amino acid called tryptophan. Thus‚ our body is able to synthesize
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Vol 455 | 11 September 2008 | doi:10.1038/nature07271 ARTICLES Strigolactone inhibition of shoot branching ` Victoria Gomez-Roldan1‚ Soraya Fermas2‚ Philip B. Brewer3‚ Virginie Puech-Pages1‚ Elizabeth A. Dun3‚ Jean-Paul Pillot2‚ Fabien Letisse4‚ Radoslava Matusova5‚ Saida Danoun1‚ Jean-Charles Portais4‚ ´ Harro Bouwmeester5‚6‚ Guillaume Becard1‚ Christine A. Beveridge3‚7*‚ Catherine Rameau2* & Soizic F. Rochange1* A carotenoid-derived hormonal signal that inhibits shoot branching in plants
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ATP: i. To be utilized as energy‚ an organic compound must first be converted to ATP. ii. This is often done by first metabolically converting the nutrient molecule to a common intermediate‚ very often glucose (i.e.‚ different catabolic biochemical pathways will terminate in a common product‚ e.g.‚ glucose‚ which‚ in the case of glucose‚ is always treated as glucose regardless of the source). b. Energy in bonds: i. Glucose as well as other foodstuff intermediates contains large amounts of energy in
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REDISCOVERING BIOLOGY Cell Biology and Cancer “ We now understand a lot about cancer. We know that it results from a series of genetic changes having to do with cell division and growth control and genetic instability‚ mortality‚ the suicide mechanism in cells; the ability of the cells to migrate; the ability of the cells to attract to them a blood supply. And so that’s pretty profound that in a few sentences one can summarize a sophisticated‚ fundamental understanding of what a cancer is.” LELAND
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regulate various events in plant development according to the intrinsic developmental program and in response to environmental stimuli. Recent genetic and molecular biological studies have revealed the framework of the intracellular signal transduction pathway from cytokinin perception to transcriptional regulation of primary cytokinin-responsive genes in Arabidopsis thaliana. Membrane-bound histidine kinases‚ including CRE1/ AHK4‚ AHK2‚ and AHK3‚ perceive cytokinins. The signal is then transferred via
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THE BIOSPHERE The environment (biosphere) extends to about 20 km from the bottom of the ocean to the highest point in the atmosphere at which life can survive without manmade protective devices. Biosphere contains about 1.8 million known species. The essential requisites of life for all life forms (light‚ heat‚ water‚ food‚ and habitats) are supplied by the biosphere. Biosphere is very complex and large‚ so it is divided into smaller units (ecosystems). Each ecosystem consists of two parts: biotic
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