Digestion in Biological Definition

Digestion

... digestion is the process whereby a biological entity ... convert the substance into nutrients . digestion occurs at the multicellular , cellular , and sub-cellular levels. digestion usually involves mechanical manipulation and ...

Enzyme

... early as the late 1700s and early 1800s the digestion of meat by stomach secretions and the ... activated. This prevents the enzyme from harmful digestion of the pancreas or other tissue. This type of ... and chymotrypsin . Their primary role is for the digestion of food and making nutrients available to all of ...

Nutrition

... state of the animal before ingestion and after digestion as well as the chemical content of the food ... between the pre ingestion state and the post digestion state. The effect may only be discernible ... below). It is now also known that the human digestion system contains a population of a range of ...

Proteolysis

... Proteolysis is the directed degradation ( digestion ) of proteins by cellular enzymes called proteases or by ... of viral proteins that were translated from a monocistronic mRNA digestion of proteins from foods as a source of amino acids Conversion of ...

Sticky end/blunt end

... ends may be ligated, but the reaction is significantly slower. These terms are most commonly used to describe the product of a restriction enzyme digestion of DNA. ...

Carnivore

... substances like honey and syrup , but do not need to consume these on a regular basis. True carnivores lack the physiology required for the digestion of vegetable matter. Domesticated carnivores are often recommended to have vegetable supplements (or such containing processed pet foods) as meats ...

Escherichia coli

... species of bacteria that live in the lower intestines of warm-blooded animals (including birds and mammals ) and are necessary for the proper digestion of food. Its presence in groundwater is a common indicator of fecal contamination. ("Enteric" is the adjective that describes organisms that live ...

Golgi apparatus

... modification, Golgi apparatus is involved in the transport of lipids around the cell as well creating lysosomes -- organelles involved in digestion . ...

Metabolism

... Cellular respiration , metabolic pathways that create energy ( ATP and NADPH ) from fuel molecules . These pathways are also involved in the digestion of food . Carbohydrate catabolism Glycogenolysis , the conversion of glycogen into glucose . Glycolysis , the conversion of ...

Neurotransmitter

... the molecules might continue to stimulate or inhibit the firing of the postsynaptic neuron. Another mechanism for removal of a neurotransmitter is digestion by an enzyme . For example, at cholinergic synapses (where acetylcholine is the neurotransmitter) the enzyme acetylcholinesterase breaks down the ...

Plasmid

... genes that code for (determine the production of) colicines , proteins that can kill other bacteria. Degrative plasmids , which enable the digestion of unusual substances, e.g., toluole or salicylic acid . Virulence plasmids , which turn the bacterium into a pathogen . Plasmids can ...

Proteasome

... digestion, and has openings at the two ends to allow entry of the targeted protein. 26S proteasome The 26 S proteasome is used for the digestion of ubiquitin -marked proteins. It is located on both sides of a cell's nuclear membrane and consists of a 20S core protease particle and two 19S ...

Vacuole

... and macrophages use food vacuoles in phagocytosis —the intake of large molecules, particles, or even other cells, by the cell for digestion . A contractile vacuole is used to pump excess water out of the cell to reduce osmotic pressure and keep the cell from bursting. Contractile ...