| 영문 | plasma membrane | 한글 | 형질막 |
|---|---|---|---|
| 설명 | 원형질 표면을 덮는 엷은막. 두께는 5~25μm이다. 광학현미경으로는 관찰할 수 없지만 전자현미경으로 관찰이 가능하다. 원형질막의 분자구조는 레시틴이나 콜레스테롤 등의 표면 활성물질 분자가 2분자층으로 그 표면에 배열되며, 이것을 각 1분자층의 단백질 분자가 양쪽에서 샌드위치한 단위막 구조이다. 전자현미경적으로 이 단위는 암-명-암의 3층(각 약 20nm)으로 구별된다. 원형질의 투과성에 중요한 구실을 하며, 생리상태가 변하면 그 투과성도 신속히 변한다. 또, 손상이 되면 쉽게 새로 형성된다. |
||
| OAM | outer acrosomal membrane |
|---|---|
| OM | obtuse mental; occipitomental; occupational medicine; ocular movement; oculomotor; Osborne Mendel [r... |
| OMM | outer mitochondrial membrane |
| OMP | olfactory marker protein; ornithine monophosphate; outer membrane protein |
| PROM | 1) Premature Rupture of Amniotic Membrane; < Labor Onset 2) Preterm Ruptu... |
| bacteria-free stage of bacterial endocarditis | Endocarditis described prior to the antibiotic era and presumably due to spontaneous healing of the bacterial vegetations. (05 Mar 2000) |
|---|---|
| bacterial | <microbiology> Bacteria are group of micro-organisms that are a single cell approximately 1 micron in transverse diameter. Some bacteria cause disease in man, requiring treatment with an antibiotic. (27 Sep 1997) |
| bacterial adhesion | Physicochemical property of fimbriated (fimbriae, bacterial) and non-fimbriated bacteria of attaching to cells, tissue, and nonbiological surfaces. It is a factor in bacterial colonization and pathogenicity. (12 Dec 1998) |
| bacterial allergy | The concept that the atopic kind of type I allergic reactions may be caused by bacterial allergens, the delayed type of skin test, so-called because of its early association with bacterial antigens (e.g., the tuberculin test). (05 Mar 2000) |
| bacterial antagonism | The inhibition of one bacterium by products of another. (05 Mar 2000) |
| bacterial capsule | A layer of slime of variable composition which covers the surface of some bacteria; capsulated cells of pathogenic bacteria are usually more virulent than cells without capsules because the former are more resistant to phagocytic action. (05 Mar 2000) |
| bacterial capsules | An envelope of loose gel surrounding a bacterial cell which is associated with the virulence of pathogenic bacteria. Some capsules have a well-defined border, whereas others form a slime layer that trails off into the medium. most capsules consist of relatively simple polysaccharides but there are some bacteria whose capsules are made of polypeptides. (12 Dec 1998) |
| bacterial cast | A cast in the urine composed of bacteria. (05 Mar 2000) |
| bacterial chemotaxis | <microbiology> The response of bacteria to gradients of attractants or repellents. In a gradient of attractant the probability of deviating from a smooth forward path is reduced if the bacterium is moving up gradient. Since the opposite is true if moving down gradient, the effect is to bias displacement towards the source of attractant. Strictly should perhaps be considered a klinokinesis with adaptation. (18 Nov 1997) |
| bacterial conjugation | <molecular biology> The process of transferring a certain plasmid of DNA known as the f plasmid (or sex plasmid) from bacteria individuals who have it (known as males) to bacteria individuals who do not already have it (known as females) by way of direct contact between the bacteria individuals called a conjugation bridge. Once transfer is completed, the female individual becomes a male individual and both parties have a copy of the F plasmid. (09 Oct 1997) |
| bacterial conjunctivitis | <pathology> A bacterial infection of a portion of the eye known as the conjunctiva. Common symptoms include redness of the eyes with a thick, often coloured purulent discharge. (27 Sep 1997) |
| bacterial cystitis | Bladder inflammation caused by bacteria. (05 Mar 2000) |
| bacterial encephalitis | Encephalitis of bacterial aetiology. Synonym: encephalitis pyogenica, purulent encephalitis, suppurative encephalitis. (05 Mar 2000) |
| bacterial endarteritis | Implantation and growth of bacteria with formation of vegetations on the arterial wall, such as may occur in a patent ductus arteriosus or arteriovenous fistula. (05 Mar 2000) |
| bacterial endocarditis | Endocarditis caused by the direct invasion of bacteria and leading to deformity and destruction of the valve leaflets. Two types are acute bacterial endocarditis and subacute bacterial endocarditis. (05 Mar 2000) |