Define digetion, respiration, egestion, ingestion and emulsification
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Answer:
Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma. In certain organisms, these smaller substances are absorbed through the small intestine into the blood stream. Digestion is a form of catabolism that is often divided into two processes based on how food is broken down: mechanical and chemical digestion. The term mechanical digestion refers to the physical breakdown of large pieces of food into smaller pieces which can subsequently be accessed by digestive enzymes. In chemical digestion, enzymes break down food into the small molecules the body can use.
Cellular respiration, the process in which nutrients are converted into useful energy in a cell
Anaerobic respiration, cellular respiration without oxygen
Maintenance respiration, the amount of cellular respiration required for an organism to maintain itself in a constant state
Respiration (physiology), transporting oxygen and carbon dioxide between cells and the external environment
Respiratory system, the anatomical system of an organism used for respiration
Breathing, passing air through respiratory organs
Aquatic respiration, animals extracting oxygen from water
Artificial respiration, the act of simulating respiration, which provides for the overall exchange of gases in the body by pulmonary ventilation, external respiration and internal respiration
Cheyne–Stokes respiration, an abnormal pattern of breathing characterized by progressively deeper and sometimes faster breathing, followed by a gradual decrease that results in a temporary stop in breathing called an apnea
Defecation is the final act of digestion, by which organisms eliminate solid, semisolid, or liquid waste material from the digestive tract via the anus.
Humans expel feces with a frequency varying from a few times daily to a few times weekly.[citation needed] Waves of muscular contraction (known as peristalsis) in the walls of the colon move fecal matter through the digestive tract towards the rectum. Undigested food may also be expelled this way, in a process called egestion.
Open defecation, the practice of defecating outside without using a toilet of any kind, is still widespread in some developing countries, for example in India.
Ingestion is the consumption of a substance by an organism. In animals, it normally accomplished by taking in the substance through the mouth into the gastrointestinal tract, such as through eating or drinking. In single-celled organisms, ingestion can take place through taking the substance through the cell membrane.
Besides nutritional items, other substances which may be ingested include medication (where ingestion is termed oral administration), recreational drugs, and substances considered inedible such as foreign bodies or excrement. Ingestion is a common route taken by pathogenic organisms and poisons entering the body.
Ingestion can also refer to a mechanism picking up something and making it enter an internal hollow of that mechanism, e.g. "a grille was fitted to prevent the pump from ingesting driftwood".
An emulsion is a mixture of two or more liquids that are normally immiscible (unmixable or unblendable). Emulsions are part of a more general class of two-phase systems of matter called colloids. Although the terms colloid and emulsion are sometimes used interchangeably, emulsion should be used when both phases, dispersed and continuous, are liquids. In an emulsion, one liquid (the dispersed phase) is dispersed in the other (the continuous phase). Examples of emulsions include vinaigrettes, homogenized milk, and some cutting fluids for metal working.
■DIGESTION - the process of changing food in your stomach so that it can be used by the body.
■RESPIRATION - a process by which living things produce energy from food.
■EGESTION - Egestion is the discharge or expulsion of undigested material (food)
■INGESTION - Ingestion is the consumption of a substance by an organism.
■EMULSIFICATION - Emulsification, or to emulsify something, is defined as the mixing of two liquids that usually are unmixable together to form an emulsion.