Encyclopedia of Biology

44 blood-brain barrier Blood Identification through the Ages byJohn C. Brenner and Demetra Xythalis Blood is a fluid that circul ...

blood-brain barrier 45 the stain is human blood, can it be associated with a partic- ular individual? The forensic serologist, i ...

46 blood-brain barrier world would have that particular combination of genetic markers. In 1900, Dr. Karl Landsteiner announced ...

blood pressure The hydrostatic force that blood exerts against the wall of a blood vessel. This pressure is greatest during the ...

signal with an unusually small HYPERFINEcoupling to the copper nucleus. Both characteristics are attributed toCOORDINATIONofthe ...

name Flaxedil), a neuromuscular blocking agent used today as a muscle relaxant in the administration of anesthesia. He and his w ...

and forms a cap on the anterior end of the spinal cord. The brain stem is the base of the brain and connects the brain’s cerebru ...

C3plant The majority of photosynthetic plants that produce, as the initial steps of CO 2 incorporation, a three-carbon compound, ...

day, store it as organic acid (malic), and release CO 2 by decarboxylation of the acids for fixing into sugar. This reduces tran ...

either nickel and zinc, or MOLYBDOPTERIN. Some nick- el-containing enzymes are also involved in the synthesis ofacetyl coenzyme ...

totransfer their captured energy from the sun to help in photosynthesis. Carotenoids color fruits and vegetables andgive them th ...

carrying capacity A population’s maximum capacity within a habitat that a single species can maintain before the habitat degrade ...

cascade prodrug APRODRUGfor which the cleavage of the carrier group becomes effective only after unmasking an activating group. ...

cation exchange The ability of soils to attract and exchange cations with cations of soil solutions; high for clays and humus an ...

cell-mediated immunity (CMI; cellular immunity) The branch of the immune system in which the reaction to foreign material is per ...

cell plate Amembrane that forms in an area of the cytoplasm from the fusion of vesicles (which flatten) of a dividing plant cell ...

used by both Celsius and Linneaus. However, Jean Christin from France made a centigrade thermometer with the current calibration ...

cephalic Pertains to the head. cephalochordate A chordate with no backbone (subphylum Cephalochordata), eg., lancelets. cerebell ...

most complex part of the mammalian brain. The cortex is broken up into five lobes, each separated by an indentation called a fis ...

involved either in transport of proteins through BIOMEMBRANEs (by unfolding and refolding the pro- teins) or in assembling newly ...