A situation that commonly arises in natural habitats when the biological demand for ~TildeLink() exceeds the supply, for example in sediments or when a site is organically polluted. Facilitated DiffusionB. It is one of the main elements that make up air, and it is necessary for the survival of all plants and animals. Overproduction of beta-globin chains caused by defective alpha chain production. CallUrl('www>ukessays>comphp',1), Oxygen is also thought to have a therapeutic role especially to treating or managing ischemic tissues.Word origin: F. Oxygene, from Gr. 1 : a chemical element that constitutes 21 percent of the Earth's atmosphere, that is capable of combining with all elements except some noble gases, that is active in physiological processes of almost all known organisms, and that is involved especially in combustion — see Chemical Elements Table. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. gen (ŏk′sĭ-jən) n. Symbol O A nonmetallic element constituting 21 percent of the atmosphere by volume that occurs as a diatomic gas, O2, and in many compounds such as water and silica, and in iron ore. apical: Relating to the apex, the anterior pole. eutrophication Has Greek Roots Respiration consists of three separate metabolic phases: glycolysis, the Krebs cycle, and the electron trans… CallUrl('www>genscript>comangelfire>comhtml',0), anaphase phase of mitosis in which the chromosomes separate and move to opposite ends of the cell anaerobic respiration respiration without ~TildeLink(); ... CallUrl('www>ontrack-media>nethtml',1), a type of respiration which takes place in the absence of ~TildeLink()Food securitythe ability of human populations to access food of sufficient quality and quantityFragmentation ... CallUrl('blogs>glowscotland>org>ukneuroendocrine>comhtm',0), Oxycline(Ecology) Zone of a water column with a sharp ~TildeLink() gradient.ParalogsHomologous genes or proteins in an organism produced by gene duplication. The body needs oxygen for its proper functioning. Medicines (to augment the body's own immune defenses) Food (which we as heterotrophic consumers in the food pyramid need). “Oxygen.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/oxygen. Photosynthesis is the driver of the oxygen cycle. The Great Oxidation Event (GOE), sometimes also called the Great Oxygenation Event, Oxygen Catastrophe, Oxygen Crisis, Oxygen Holocaust, or Oxygen Revolution, was a time period when the Earth's atmosphere and the shallow ocean first experienced a rise in oxygen, approximately 2.4 - 2.0 Ga (billion years ago) … CallUrl('biologywise>comlearner>orghtml',0), In order to carry out their activities, peroxisomes use significant amounts of ~TildeLink(). About Awards Privacy Policy Permissions Stock Footage Contact ... CallUrl('www>cellsalive>comhtm',1), AerobicThe presence of ~TildeLink(). French oxygène, from Greek oxys, adjective, acidic, literally, sharp + French -gène -gen; akin to Latin acer sharp — more at edge. Symbol: … ~TildeLink() used for respiration is a very small molecule. It can be delivered via nasal tubes, an oxygen mask, or an oxygen tent. Oxygen (definition #1) a colorless, odorless reactive gas, and is the life-supporting component of the air. Definition Oxygen saturation, measured with a pulse oximeter, is the amount of oxygen (in percent) bound to hemoglobin in red blood cells. You can view samples of our professional work here. CallUrl('study>comhtml',1), ~TildeLink(): One of the chemical elements on the periodic table that is used by all living thingsOzone: A form of ~TildeLink() that, in the atmosphere, protects living things from ultraviolet rays ... CallUrl('shawmst>orgblogspot>hu<2008<03html',0), ~TildeLink() to breathe (for use in aerobic respiration. This process includes the krebs cycle, electron transport chain, and oxidative phosphorylation. CallUrl('www>sci>sdsu>edu<~smaloyhtml',0), An organism that can survive only in an atmosphere of ~TildeLink(), which is used in aerobic respiration.strict anaerobeAn organism that cannot survive in an atmosphere of ~TildeLink(). Oxygen saturation is a measure of the amount of hemoglobin that is bound to molecular oxygen at a given time point. CallUrl('honeycuttscience>comasm>orghtml',1), This is known as lactic acid fermentation and it is an anaerobic process that does not require ~TildeLink(). He's making a quiz, and checking it twice... Test your knowledge of the words of the year. a chemical element that is a gas with no smell or color. Oxygen cycle, along with the carbon cycle and nitrogen cycle plays an essential role in the existence of life on the earth. And also, as today, the important part was the formation of hydrogen ions which were used to reduce carbon dioxide to form organic molecules (the building blocks of plants and animals). Oxygen is air, the stuff we breathe, the thing that makes our lives possible. CallUrl('vcebiol>wordpress>comorgpageshtml',0), Now, the mutation does not really affect the ability of beta-globin to participate with alpha-globin and make hemoglobin, and it doesn't affect the ability to carry ~TildeLink(). In addition to PO2, other environmental factors and diseases can affect ~TildeLink() carrying capacity and delivery. An Oxygen Debt is The amount of extra oxygen needed by muscle tissue to oxidise lactic acid following exercise. CallUrl('www>s-cool>co>ukbiology>leidenuniv>nlhtml',0), ~TildeLink()-demanding waste is an extremely important pollutant to ecosystems. 'All Intensive Purposes' or 'All Intents and Purposes'? Photosynthesis is defined as the process, used by green plants and photosynthetic bacteria, where electromagnetic radiation is converted to chemical energy and uses the energy of light to convert carbon dioxide and water to carbohydrates and oxygen. These example sentences are selected automatically from various online news sources to reflect current usage of the word 'oxygen.' This occurs in the matrix at the surface of the inner membrane. The reactive ~TildeLink() species include hydrogen peroxide (H2O2) and superoxide anion. Those proteins take food molecules and combine them with ~TildeLink() (O2). Scientists use symbols to stand … Temperature: ... CallUrl('www>icoachmath>comhtml',0), ~TildeLink() technique (primary productivity). More Biology Terms ... CallUrl('www>sciencedictionary>orgcomshtml',0), Transfer of ~TildeLink() and carbon dioxide across the membranes occurs by diffusion, but the solubility of these gases in the material of the membrane also play a role. About 20… CallUrl('www>mhhe>comhtml',0), The intake of ~TildeLink() into the lungs and producing carbon dioxide in return is the main function of the respiratory system. (See Electrophoresis.) See Homologs and Orthologs. These locations are the focus of intense research - informing how astrobiologists look for and identify life elsewhere in the universe. The oxygen is then used to … In some small organisms, no respiratory organs are needed, because the ~TildeLink() moves directly through the cell membrane and into each cell. 'Nip it in the butt' or 'Nip it in the bud'. The estimation of primary productivity by the measurement of the rate of ~TildeLink() increaseParapatric speciation. CallUrl('tbiomed>biomedcentral>com1186bio-medicine>orgssc>education>ed>ac>ukhtml',0), Low ~TildeLink()? Everything you always wanted to know. CallUrl('www>alyvea>comphp',0), metabolic process that does not require ~TildeLink().Aristotle . In this process, plants transform CO2 and water into sugars to use in their metabolism, help them to grow and to provide food for other organisms. Often used to describe an organism that requires ~TildeLink() for growth or growth conditions with ~TildeLink().AffinityThe strength of an interaction between two molecules, such as the binding of an antigen to an antibody. Test Your Knowledge - and learn some interesting things along the way. Basically, respiration is how we convert food into energy using water and oxygen. No problem. Oxygen and is present in many organic compounds. It is moved to the right in higher acidity (more dissolved carbon dioxide) and to the left in lower acidity (less dissolved carbon dioxide) ... CallUrl('en>wikipedia>org>>] ~[ ⇑ ]ated blood cell on the left, de ~[ ⇑] ated blood cell on the right. Anoxygenic (or H2S) photosynthesis, using PSI, is seen in living purple and green bacteria. oxygen uptake: (O 2 ) ( ok'si-jĕn kŏn-sŭmp'shŭn ) The volume of oxygen consumed by the body in 1 minute; it is reported in liters or mL per minute at STPD. CallUrl('www>kumc>eduhtml',0). Oxygen forms a large part of the air…. As primary producers, photosynthetic organisms form the base of Earth’s food webs and are consumed directly or indirectly by all higher life-forms. The digestive system takes in and processes food. Oxygen: The odorless gas that is present in the air and necessary to maintain life. Makes up 75% of an animal's weight, and 80% of a plant's. Alleles. Which process is responsible for this?A. 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