Search results
Results from the WOW.Com Content Network
Instead, the extracellular forms of these Gram-negative bacteria maintain their structural integrity by relying on a layer of disulfide bond cross-linked cysteine-rich proteins, which is located between cytoplasmic membrane and outer membrane in a manner analogous to the peptidoglycan layer in other Gram-negative bacteria. [4]
Extra virgin may refer to: Extra virgin, a grade of olive oil acidity, sometimes incorrectly used to describe other kinds of oil. Entertainment.
Salt stress induces the secretion of extracellular polymeric substances from D. salina. It is speculated that the release of complex mixtures of macromolecular polyelectrolytes with high polysaccharide content contributes to the survival strategy of D. salina in varying salt concentrations.
Normal vaginal discharge is composed of cervical mucus, vaginal fluid, shedding vaginal and cervical cells, and bacteria. [1] The majority of the liquid in vaginal discharge is mucus produced by glands of the cervix. [1] [4] The rest is made up of transudate from the vaginal walls and secretions from glands (Skene's and Bartholin's). [4]
Bacteria can survive long periods of time in water, animal manure, and soil, causing biofilm formation on plants or in the processing equipment. [144] The buildup of biofilms can affect the heat flow across a surface and increase surface corrosion and frictional resistance of fluids. [ 145 ]
A plant cell wall was first observed and named (simply as a "wall") by Robert Hooke in 1665. [3] However, "the dead excrusion product of the living protoplast" was forgotten, for almost three centuries, being the subject of scientific interest mainly as a resource for industrial processing or in relation to animal or human health.
The frustule is composed almost purely of silica, made from silicic acid, and is coated with a layer of organic substance, which was referred to in the early literature on diatoms as pectin, a fiber most commonly found in cell walls of plants. [1] [2] This layer is actually composed of several types of polysaccharides. [3]
Claude Bernard, French physician who introduced the concept of homeostasis. The human body and even its individual body fluids may be conceptually divided into various fluid compartments, which, although not literally anatomic compartments, do represent a real division in terms of how portions of the body's water, solutes, and suspended elements are segregated.