What is starch? Learn the starch definition and about the starch molecule structure. Discover the starch chemical formula and the starch function...
starch (stahrch) A high molecular weight polysaccharide built up ofd-glucose residues in α-1,4 linkage, differing from cellulose in the presence of α- rather than β-glucoside linkages, which exists in most plant tissues; converted into dextrin when subjected to the action of dry heat, and...
starch equivalent The amount ofoxygenconsumed in the combustion of a given weight offatas compared with that consumed in the combustion of an equal weight of starch; the figure is about 2.38, that for starch being taken as 1. Last updated on May 29th, 2023 ...
A polysaccharide, (C6H10O5)n, that is the main form of carbohydrate storage in animals and is found primarily in the liver and muscle tissue. It is readily converted to glucose as needed by the body to satisfy its energy needs. Also called animal starch. gly′co·gen′ic (-jĕn′ĭk...
1.BiologyA group of closely related organisms that are very similar to each other and are usually capable of interbreeding and producing fertile offspring. The species is the fundamental category of taxonomic classification, ranking below a genus or subgenus. Species names are represented in binomial...
Biology definition: Iodine testis a test for detecting the presence ofstarch. The sample turns blue-black in color when a few drops of potassium iodidesolutionare placed on thesample. The reaction is due to the formation of polyiodide chains from the reaction of starch andiodine. Theamylosein...
family inBiology topic From Longman Dictionary of Contemporary English fam‧i‧ly/ˈfæməli/●●●S1W1noun(pluralfamilies)1closely related group[countable]a group of people who arerelatedto each other, especially amother, afather, and their childrenDo you know the family next door?Th...
Many glucose monomers can be joined together to create polysaccharide polymers like starch, cellulose, and glycogen. An example of an artificial, or human-made monomer would be butadiene, which can be used to create the artificial rubber used in car tires....
Parenchyma are the most common type of cell in plants. They carry out metabolic functions and store starch. Tracheids and vessel elements carry the water and dissolved minerals. These cells do not carry out metabolic activity but even after they die they are still vital for plant survival. ...
chlorophyllChlorophyll is a pigment found in green plants. biology Print Written and fact-checked by The Editors of Encyclopaedia Britannica Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content...