It is known in three isomers: (1) a dextrorotatory L-form found in muscle tissue and in the blood; (2) a levorotatory D-form, a product of sucrose fermentation; and (3) a DL-form found foods that have undergone fermentation (such as beer, pickles, and sour milk). When ∆Lk > 0, the helix is positively supercoiled; when ∆Lk = 0, the helix is relaxed; and when ∆Lk < 0, the helix is negatively supercoiled. The process by which a cell divides into two new daughter cells. Ano ang mga kasabihan sa sa aking kababata? Controls what enters and leaves the cell and also provides protection and support. 21-letter words that start with l. l eucoencephalomalacia. Linkers are ligated to the ends of a DNA fragment. ABOUT THE DIET OF THE AFRICAN ELEPHANT, Loxosceles /lock-SAW-sə-leez/ The genus comprised of the recluse spiders (also known as brown or fiddle-back spiders). What is the rising action of faith love and dr lazaro? linking number (Lk) The number of turns that a closed DNA helix (i.e., one lacking free ends) takes about its axis. linguiform /LING-wə-form/ Tongue-shaped. SEE ANIMATION. | MAP OF WORLD LEPROSY DISTRIBUTION (2003). Abiotic Factors. living fossils Organisms (such as the horseshoe crab, dawn redwood, crocodilians, the coelocanth Latimeria chalumnae or the inarticulate brachiopod Lingula) known from past geological eras that survive today and that have remained to all appearances unchanged. later-generation hybrids /HĪ-brids/ Hybrids produced by breeding of hybrids in generations subsequent to the original (F1) cross. Type of adaptation that affects the behavior of an animal (migration). Observed by factor that may change in response to the other variable. It primarily affects the peripheral nerves and upper respiratory tract. lysosome /LĪ-sə-SŌM/ A eukaryotic membrane-bounded vesicle containing hydrolytic enzymes, that engulfs and breaks down macromolecules in the cell that require digestion. Series of steps in which organisms transfer energy by eating or being eaten. lunar eclipse. Ano ang pinakamaliit na kontinente sa mundo? lysogenic repressor /lie-sə-JEN-ik/ A protein that prevents a prophage from entering the lytic cycle. lignite /LIG-nite/ A usually brownish-black coal, in which the texture of the original wood can often be seen; intermediate between peat and bituminous coal. Forms when electrons are shared between atoms. lava. lacrimation /LACK-rə-MAY-shən/ The production of lacrimal fluid. leiomyosarcoma /LIE-ō-MY-ō-sar-KŌ-mə/ A sarcoma arising from smooth muscle cells. There are three isotopes: U-238, U-235, and U-234. Untreated it causes progressive, permanent, and disfiguring damage to the skin, nerves, eyes, and appendages. lipoprotein /LIP-ə-PRO-teen/ A biochemical assembly containing proteins and lipids. A symbiotic relationship in which both species benefit. An organism that relies on other organisms for energy and food supply. The enzyme β-galactosidase cleaves lactose into glucose and galactose. lawn (usually in the phrase bacterial lawn) A film of bacteria forming a continuous surface. It precedes the start codon and contains the ribosome binding site and, usually, regulatory sequences such as an attenuator region. latent heat of fusion. light. logarithmic growth phase (also log or exponential growth phase) /low-gə-RITH-mick/ The phase of vigorous growth during which cell number doubles every 20-30 minutes. Who is the longest reigning WWE Champion of all time? latent heat of vaporization. listeriosis /lis-tir-ee-Ō-səs/ A serious human disease characterized by sepsis and meningitis. l inienzugbeeinflussung. lingual /LING-yoo-əl/ Pertaining to the tongue. When excessive secretion occurs the lacrimal fluid overflows the eyelids and pours out onto the face. larva /LARV-ə/ (pl larvae /LARV-ee, -eye/) A free-living, sexually immature form that occurs in the life cycle of many animals; a larval form is often quite distinct from the adult (e.g., maggot and fly, tadpole and frog) and the two usually differ in diet. lysogeny /lī-SAWJ-ə-nee/ The integration of a virus into the genome of a host bacterium as a prophage. Such tumors are most common in the abdomen, uterus, and pelvis, but can occur almost anywhere in the body. This causes the reaction to become unidirectional, since any newly synthesized CE is sequestered within particles. lactogenic hormone /lack-tə-JEN-ik/ (also luteotropin /lood-ee-ə-TRŌ-pə/ or luteotrophin /lood-ee-ə-TRŌ-feen/) A hormone, produced by the pituitary gland, promoting lactation in mammals (and brooding in birds). larval /LARV-əl/ Of or pertaining to larvae. latewood (also summerwood) Xylem lignified during the summer. The reciprocal cross, produced with a lion father, is called a lipard. Process by which individuals that are better suited to their environment survive and reproduce most successfully (survival of the fittest). lienitis /lie-en-NIGHT-əs/ Inflammation of the spleen. The smallest unit of an organism that can be considered to be alive. loess. MORE INFORMATION, leukocytes or leucocytes (also white cells or white blood corpuscles) /LUKE-ə-SIGHTS/ Cells of the immune system that protect the body against contagious disease and rid it of useless or toxic debris. laxative. Uranium decays slowly by emitting an alpha particle. lag growth phase The period (preceding the logarithmic growth phase) during which there is little increase in the number of organisms present in a population. When did organ music become associated with baseball? The primary human pathogen in the genus is L. monocytogenes, the usual causative agent of listeriosis. Lichens do not injure trees. MORE INFORMATION. levorotatory /LEV-ō-ROTE-tə-tore-ee/ Rotating a plane of polarized light counterclockwise (said of a chemical compound). lineage /LIN-əj/ A descent through a single line from a progenitor. The process by which the nucleus is divided into two identical nuclei. Lactose is abundant in milk. MAP. Biology vocabulary, Biology word list - www.myvocabulary.com lytic infection /LIT-ik/ Infection with a bacteriophage that ends in lysis of the host cell. Learn vocabulary, terms, and more with flashcards, games, and other study tools. leopon The hybrid produced by crossing a lioness with a leopard. liposarcoma /LIP-ō-sar-KŌ-mə/ A sarcoma arising from fat cells. Biology Dictionary (LEUC-) leucine (Leu or L) /LOO-seen/ Leucine, one of the essential amino acids. lake. lumbocostal Pertaining to the loins (or lumbar vertebrae) and the ribs. larynx /LAIR-ənks/ The organ of speech (voice-box) that makes up the upper end of the trachea. Ideas that have been supported over time. If you are 13 years old when were you born? It mainly affects newborns, pregnant women, the elderly, and adults with compromised immune systems. The positively charged particle found in the nucleus of an atom. SEE DIAGRAM. The disease is transmitted when infected urine or semen comes in contact with the eyes, mucous membranes, or broken skin. Leptospira /LEP-tō-SPĪ-rə, LEP-tə-/ A genus of spirochetes containing the causative agents of leptospirosis. A. Abdomen. A change in a kind of organism over time. Compare: lytic cycle. lake. A liposome usually has an aqueous core. lumbar /LəM-bar, LəM-ber/ (1) pertaining to the loins; (2) with reference to vertebrae, those lying between the thoracic and sacral vertebrae. PICTURE, life (1) the state of an organism in which its various characteristic metabolic processes are occurring and in which its organs and other tissues carry out their normal functions. It later became part of Euramerica, then part of Pangea, and still later, part of Laurasia. Active Transport. CODONS | MOLECULAR STRUCTURE. luteinizing hormone (LH also ICSH) /lood-ee-ə-NIZE-ing/ A glycoprotein hormone that stimulates ovulation and the secretion of estrogen. latent heat of fusion. Is the substance in which the solute dissolved in a solution. A vocabulary list featuring Biology Words. Since the latter is more hydrophobic than free cholesterol, it tends to move toward the core of lipoprotein particles. Any relationship in which two species live together. uranium (U) /yer-RAIN-ee-əm/ n. A weakly radioactive chemical element; atomic weight 238.02891; atomic number 92. Compare: lag growth phase. Active Immunity. Leptospirosis begins with flu-like symptoms (vomiting, fever, myalgia, intense headache). Listeria /list-TIH-ree-yə/ A genus of gram-positive bacilli. Lecithin-cholesterol acyltransferase. PICTURE. Process by which plants an some organisms use light energy to convert water and carbon dioxide into oxygen and glucose. Compare: dextrorotatory, levoversion /lev-ō-VER-shən/ (also levorotation /LEV-ō-rō-TAY-shən/ or levotorsion /LEV-ō-TORE-shən/) A turning to the left. These microorganisms have an exceptionally broad host range (Leptospira causes disease not only in humans and other mammals, but also in birds, amphibians, and reptiles. They also serve in energy storage and as signaling molecules. Ano ang Imahinasyong guhit na naghahati sa daigdig sa magkaibang araw? lacrimal sac /LACK-rə-məl/ A small expanded chamber at the upper end of the nasolacrimal duct. Acetic Acid. laminectomy /lam-ə-NECK-tə-mee/ Surgical excision of a vertebral lamina. luciferin /loo-SIF-ə-rən/ A compound found in bioluminescent organisms. Abdominal Cavity. Is a test in which only one variable is changed while other materials remain the same. leader sequence A segment at the 5' end of an mRNA. leptotene /LEP-tə-teen/ A stage of meiotic prophase I. lacteals /LACK-tee-əls/ Lymphatic vessels connected to the intestines and taking up some of the products of digestion. In general, two such alleles will segregate together more frequently when their corresponding loci are closer to each other on a given chromosome (i.e., the two alleles will be more closely linked). L- lysosomes- a n organelle containing digestive enzymes. (Web feet).

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