dioxide

Uric acid

...ther acids as rain. The acids form when sulfur dioxide and nitrogen oxides released during the combustion of fossil fuels combine with water and oxygen in the atmosphere. Full article >>> A group of drugs derived from barbit uric acid that is used to sedate, to control convulsions, or...

Transition

...zyme A (CoA) so it can enter Kreb's cycle. Carbon dioxide is also released and NADH is formed (from NAD and H) in this process. Full article >>> transition state - structure that forms trans iently in the course of a chemical re action and has the highest free energy of any re action int...

Trachea

...ther invertebrates , exchange oxygen and carbon dioxide between their tissue s and the air by a system of air-filled tubes called trachea e . Full article >>> Trachea l Systems Many terrestrial animals have their respiratory surfaces inside the body and connected to the outside by a s...

Tissue

...tissue s in capillaries where respiratory carbon dioxide lowers blood pH ... Full article >>> Ballistic particle-mediated gene transfer . Complementary DNA molecule s are adsorbed to gold particles and shot by a pressure gas jet into tissue s or culture cells . HIGH-PRESSURE FREEZING...

Stroma

...the synthesis of organ ic molecule s from carbon dioxide and water. Full article >>> Stroma toporoids, once thought to be coral, but actually sponges, continued their significant role in Silurian reefs. Some stroma toporoid specimens are over 16 feet in diameter. Full article >>&#...

Stomata

...cle >>> Stomata reveal past carbon dioxide levels Because CO2 levels and stomata l index are inversely related, could fossil leaves tell us about past levels of CO2 in the atmosphere? Yes. Full article >>> stomata : the pores within leaves surrounded by guard cell s that r...

Roots

...r loss but is as impervious to oxygen and carbon dioxide as it is to water. Full article >>> Roots of a hydroponically grown plant At the tip of every growing root is a conical covering of tissue called the vascular plants cap. It usually is not visible to the naked eye. Full articl...

Respiration

... respiration , which exchanges oxygen and carbon dioxide between an organ ism and the external environmen...oms of the sugar molecule are released as carbon dioxide (CO2). Full article >>> Cellular respiration is the process of oxidizing food mo...

Reduction

...ight energy to produce carbohydrates from carbon dioxide and water. Full article >>> The reduction division process by which haploid gametes and spore s are formed, consisting of a single duplication of the genetic material followed by two mitotic division s. Messenger RNA (m...

Redox reaction

...Photosynthesis involves the reduction of carbon dioxide into sugars and the oxidation of water into molecular oxygen . Full article >>> redox reaction (ree-doks) A chemical re action involving the trans fer of one or more electrons from one reactant to another; also called oxidation...

Pyruvic acid

...and reduced by NADH to form a molecule of carbon dioxide and one of ethanol . C3H4O3 + NADH + H+ → C...gen s (which form carbon dioxide). When the carbon dioxide is removed, energy is given off, and NAD+ is converted into the higher energy form NADH. Full artic...

Pulmonary artery

... and left lungs . Here the blood gives up carbon dioxide and takes on a fresh supply of oxygen . Full art...xchange takes places and the blood releases carbon dioxide into the lung cavity and picks up oxygen . Full article >>>...

Producers

...d nutrients from the abiotic environment (carbon dioxide from the air or water, other nutrients from the soil or water) to perform photosynthesis and grow. Full article >>> producers : organ isms within an ecosystem that trap energy (by photosynthesis ). progesterone : a hormone pr...

Plasma

...ids , hormones , products of metabolism , carbon dioxide and oxygen . Full article >>> The inner leaflet of a typical mammalian plasma membrane contains 20-30% univalent PS (phosphatidylserine) and ~1% multivalent PtdIns(4,5)P2. Numerous proteins have clusters of basic (or basic/hydro...

Plant

...light energy is used to bond molecule s of carbon dioxide together to form sugar ( glucose ). The energy is ... The cyclic pathway used by plant s to fix carbon dioxide and produce triose phosphates. Named after Melvin Calvin, an early worker in the field. Full articl...

Pigment

...n : a red pigment that binds oxygen and carbon dioxide molecule s and carries them through the bloodstre...rall effect may be summarized as water plus carbon dioxide are converted to biochemical s. Full article >>> Hemoglobin respiratory pigment ...

Photorespiration

...plant s carry on photosynthesis by adding carbon dioxide (CO2) to a phosphorylated 5-carbon sugar called ribulose bisphosphate. Full article >>> Photorespiration . Enhanced respiration of plant s in the light relative to dark respiration Photosynthate. A substance synthesized in the pr...

Photosynthesis

...roduction of carbohydrates from water and carbon dioxide by means of chlorophyll in presence of energy-su...nergy and use it to produce chemical bonds. Carbon dioxide and water are consumed while oxygen and simple sugars are produced. Full article >>> ...

Oxygenated blood

...ungs . In the lungs , gas exchange occurs, carbon dioxide diffuses out, oxygen diffuses in. Arterioles are small arteries that connect larger arteries with capillaries . Full article >>> In birds and mammals , a vein that carries oxygenated blood from the lungs to the left atrium...

NADPH

...ent reactions is used to reduce carbon from carbon dioxide to simple sugars; light is not required for these reactions. Full article >>> light re action that part of the photosynthetic process that, in the presence of light, captures energy to form ATP and NADPH 2 to be used to synthesize ...

Lysis

...ted in the past, according to the levels of carbon dioxide and methane. Full article >>> apo lysis Dis integration or detachment of a gravid tapeworm segment ; also, the detachment of the hypodermis from the old pro cuticle in arthropods before molting. Full article >>> Gly...

Lung

...sphere into the bloodstream, and to excrete carbon dioxide from the bloodstream into the atmosphere. Full ar...en , through which oxygen is taken up and carbon dioxide given off. Character istic of many terrestrial arachnids such as scorpions and spiders. Full artic...

Lenticel

...icel s are openings that allow oxygen and carbon dioxide to diffuse between the living cells of the stem and the air. [Discussion] Welcome&Next Search 16 December 2001 ... Full article >>> lenticel Isolated areas of loosely arranged cells in the cork surfaces of stems, roots ,...

Jointed appendages

...ortion of the body, taking oxygen to, and carbon dioxide from, every cell ; paired, jointed appendages ... Full article >>>...

Heterotroph

...pment. Contrast with autotrophs which use carbon dioxide as sole carbon source. Full article >>> A heterotroph that uses light to generate energy. This site is dependent on visitors like you. If you think you can add more to this definition or see a correction that needs to be made, clic...

Hemoglobin

...n : a red pigment that binds oxygen and carbon dioxide molecule s and carries them through the bloodstre....5% is physically dissolved. Trans port of carbon dioxide ... Full article >>> A schematic of hemoglobin . The ribbon parts represent the pro...

Haploid

...n : a red pigment that binds oxygen and carbon dioxide molecule s and carries them through the bloodstream. herbivores : animals that eat plant s. Full article >>> Haploid cell . A cell containing only one set, or half the usual ( diploid ) number, of chromosomes . Full article...

Glucose

...stem to evolve, PSI, uses light to convert carbon dioxide (CO2) and hydrogen sulfide (H2S) to glucose . This process releases sulfur as a waste product. Full article >>> Plant s convert light into chemical energy by the process of photosynthesis , which creates glucose (a simple sugar) a...

Gills

...the gills , maximizing oxygen uptake and carbon dioxide loss. coupled reactions ... Full article >>> In fish, the system has only one circuit, with the blood being pumped through the capillaries of the gills and on to the capillaries of the body tissue s. This is known as single circ...

Fermentation

...pe of anaerobic respiration that yields carbon dioxide and alcohol; used in commercial fermentation processes, including production of raised bakery dough products and alcoholic beverages. Full article >>> fermentation : an anaerobic process in which energy can be released from gluco...

Exoskeleton

...ortion of the body, taking oxygen to, and carbon dioxide from, every cell ; paired, jointed appendages ... Full article >>> ingrowth from the exoskeleton of most arthropods What Topic Is Your BIOLOGY Paper On? ENTER YOUR TOPIC HERE: ... Full article >>> This manner of ...

Decomposers

...turning nutrients to the soil or water, and carbon dioxide to the air and water. See water cycle for more on water's role. [edit] ... Full article >>> decomposers : the organ isms of decay; usually bacteria and fungi . dendrites : the short extensions of the neuron . deoxyribonucleic a...

Cork cell

...r loss but is as impervious to oxygen and carbon dioxide as it is to water. Full article >>> cork cambium Meristematic tissue that produces cork cell s on its outer surface and phelloderm on its inner surface. corm Underground, enlarged, food-storing stem covered by papery leaves. cor...

Chloroplast

...the synthesis of organ ic compound s from carbon dioxide and water. Full article >>> chloroplast - specialized organelle in green algae and plant s that contains chlorophyll and performs photosynthesis ... Full article >>> chloroplast A subcellular organelle whi...

Cellular respiration

...dizing food molecule s, like glucose , to carbon dioxide and water. The energy released is trapped in the form of ATP for use by all the energy-consuming activities of the cell . Full article >>> Cellular respiration is, in its broadest definition, the process in which the chemical bond...

Carbon fixation

...usually driven by photosynthesis , whereby carbon dioxide is converted into organ ic compound s. In plant...autotrophic plant s. It is when the three carbon dioxide molecule s taken in each time there is a turn in the Calvin cycle in the dark reactions of photosy...

Carbohydrates

...roduction of carbohydrates from water and carbon dioxide by means of chlorophyll in presence of energy-su...ight energy to produce carbohydrates from carbon dioxide and water. Full article >>> This obligate anaerobe is capable of utilizing various ...

Autotrophic

... an organ ism that obtains its carbon from carbon dioxide using the oxidation of inorganic chemical compo...) play an important role in the fixation of carbon dioxide into organ ic compound s. Consumers , in turn, use organ ic compound s and release carbon dioxi...

Autotrophs

...oduce their own organ ic compound s using carbon dioxide from the air or water in which they live. To do th...H3 to NO2-. Full article >>> Carbon dioxide dissolved in the ocean is their source of carbon; they are autotrophs . Organ ic material from dec...

Alveoli

...able sacs in the lungs where oxygen and carbon dioxide are exchanged. amensalism A symbiotic relationship in which members of one population inhibit the growth of another population without being affected. Full article >>> Only in the alveoli does actual gas exchange takes place. The...

Algae

...light energy is used to bond molecule s of carbon dioxide together to form sugar ( glucose ). The energy is stored in glucose . This process is called photosynthesis . Full article >>> Green plant s and algae also use both photosystem s. In these organ isms, photosynthesis occurs in ...

Adaptation

...tissue s in capillaries where respiratory carbon dioxide lowers blood pH ... Full article >>> Process of evolution ary branching of basic forms into specialized forms by differentiation , specialization and adaptation . See adaptive radiation . Stasigenesis Phylogenetic stop, stabilizati...