grain in Biological Definition

Alcohol

... الكحول, or al-ghawl الغول) refers almost always to ethanol , also known as grain alcohol , and often to any beverage that contains ethanol (see alcoholic beverage ). This sense underlies the term alcoholism ( addiction to ...

Botany

... diseases , and evolution of plants . Nearly all the food we eat comes (directly and indirectly) from plants like this American long grain rice. This is one of the many reasons that botany is an important topic of study and research. Contents showTocToggle("show","hide") ...

Carbohydrate

... represent an important class of biological polymer . Examples include starch , cellulose and chitin . Nutrition Refined grain products are rich sources of complex carbohydrates Strictly speaking, carbohydrates are not necessary for human nutrition because proteins can ...

Ethyl alcohol

... produced under conditions of standard temperature and pressure . Disclaimer and references Ethyl alcohol , also known as ethanol or grain alcohol , is a flammable, colorless chemical compound , one of the alcohols that is most often found in alcoholic beverages . In common parlance, ...

Gamete

... " produce the smaller gamete termed (in animals) a spermatozoon (or sperm). The equivalent "male" structure in higher plants is called a pollen grain . Organs that produce gametes are called gonads in animals , and archegonia or antheridia in plants . Gametes are haploid cells; that ...