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Sieve cells are long, conducting cells in the phloem that do not form sieve tubes. The major difference between sieve cells and sieve tube members is the lack of sieve plates in sieve cells. [1] They have a very narrow diameter and tend to be longer in length than sieve tube elements as they are generally associated with albuminous cells. [4]
Food mill: Used to mash or sieve soft foods. Typically consists of a bowl, a plate with holes like a colander, and a crank with a bent metal blade which crushes the food and forces it through the holes. Funnel: Used to channel liquid or fine-grained substances into containers with a small opening. [2] A pipe with a wide, conical mouth and a ...
Metal laboratory sieves An ami shakushi, a Japanese ladle or scoop that may be used to remove small drops of batter during the frying of tempura ancient sieve. A sieve, fine mesh strainer, or sift is a tool used for separating wanted elements from unwanted material or for controlling the particle size distribution of a sample, using a screen such as a woven mesh or net or perforated sheet ...
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A colander (or cullender) is a kitchen utensil perforated with holes used to strain foods such as pasta or to rinse vegetables. [1] The perforations of the colander allow liquid to drain through while retaining the solids inside. It is sometimes called a pasta strainer. A sieve, with much finer mesh, is also used for straining.
Uses of a food mill include removing the seeds from cooked tomatoes, removing pulp or larger pieces from foods (creating apple jelly or any type of purée), [2] and making mashed potatoes or spätzle. A metal sieve used with a wooden spoon or pestle may be found more effective for puréeing fibrous foodstuffs such as marmalade oranges.
Size-exclusion chromatography, also known as molecular sieve chromatography, [1] is a chromatographic method in which molecules in solution are separated by their shape, and in some cases size. [2] It is usually applied to large molecules or macromolecular complexes such as proteins and industrial polymers . [ 3 ]
It is the companion cells that are nestled between sieve-tube members that function in some manner bringing about the conduction of food. Sieve-tube members that are alive contain a polymer called callose, a carbohydrate polymer, forming the callus pad/callus, the colourless substance that covers the sieve plate.