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Ingestion, Propulsion, Mechanical digestion, Chemical Digestion, Absorption and Defecation

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What are the six basic activities of the digestive system?

Steps of excretory system can be classified into formation of urine in kidneys which again include three processes viz. ultrafiltration, reabsorption and renal secretion. Then it is followed by flowing of urine from kidney to urinary bladder via ureters. From urinary bladder during micturition the urine is expelled out through urethra.


What is a six kingdom system?

The six kingdom system is a way to classify living organisms into six main groups based on their shared characteristics. The six kingdoms are Animalia, Plantae, Fungi, Protista, Archaea, and Bacteria. Each kingdom represents a different type of organism with distinct characteristics and evolutionary relationships.


What process that breaks down complex molecules of food into smaller particles is called what?

PROCESS: DIGESTIONFunctions of the digestive systemThe digestive system prepares nutrients for utilization by body cells through six activities, or functions.IngestionThe first activity of the digestive system is to take in food through the mouth. This process, called ingestion, has to take place before anything else can happen.Mechanical digestionThe large pieces of food that are ingested have to be broken into smaller particles that can be acted upon by various enzymes. This is mechanical digestion, which begins in the mouth with chewing or mastication and continues with churning and mixing actions in the stomach.Chemical digestionThe complex molecules of carbohydrates, proteins, and fats are transformed by chemical digestion into smaller molecules that can be absorbed and utilized by the cells. Chemical digestion, through a process called hydrolysis, uses water and digestive enzymes to break down the complex molecules. Digestive enzymes speed up the hydrolysis process, which is otherwise very slow.MovementsAfter ingestion and mastication, the food particles move from the mouth into the pharynx, then into the esophagus. This movement is deglutition, or swallowing. Mixing movements occur in the stomach as a result of smooth muscle contraction. These repetitive contractions usually occur in small segments of the GI tract and mix the food particles with enzymes and other fluids. The movements that propel the food particles through the GI tract are called peristalsis. These are rhythmic waves of contractions that move the food particles through the various regions in which mechanical and chemical digestion takes place.AbsorptionThe simple molecules that result from chemical digestion pass through cell membranes of the lining in the small intestine into the blood or lymph capillaries. This process is called absorption.EliminationThe food molecules that cannot be digested or absorbed need to be eliminated from the body. The removal of indigestible wastes through the anus, in the form of feces, is defecation or elimination.


An organ consists of several kinds of what?

An organ is a functional unit of a particular system in the body. Different tissues constitute an organ in that particular system. So, it varies, as to what kind of tissues function for the organ and the the type of system the organ is functioning to. Example, heart is an organ functioning as a part of circulatory system and is made up of cardiac tissues and other organelles related to its functioning. :) solydide


Does scientist recognize six kingdoms of organisms?

No, scientists do not recognize six kingdoms of organisms anymore. The current classification system known as the three-domain system divides all living organisms into three domains: Bacteria, Archaea, and Eukarya. These domains are further subdivided into various kingdoms, such as Animalia, Plantae, Fungi, and Protista.

Related Questions

What are the six main organs in the digestive system?

the six main organs in the digestive system are the mouth, esophagus, stomach, the small intestines, the large intestines and the pancreas


What do the six main organs in the digestive system do?

the six main organs help digest the chewed food


What are name of six bits of digestive system?

mouth, gullet, stomach, pancreas, liver, small intenstine.


Can menopause create digestive changes?

Here the hormones go for a big six the entire body changes in some way with mood swings , so it can affect the digestive system as well.


How many parts are there in the digestive system?

The parts, or organs, that conform the human digestive system are: Mouth, Esophagus, Stomach, Liver, Pancreas, Small Intestine and the Large Intestine. All of them have the function to transport and transport the food we eat into energy for the body.


What system does hepatitis B affect?

Hepatitis affects the liver. It is in fact an inflammation of the liver. There are six viruses that cause hepatitis (h A, h B, h C, h D, h E, and h G). The liver is the hepatic organ, and the disease is named for the inflammation it causes.


Which type of résumé is best for a person who has been unemployed for the last six months?

A functional resume is best for a person who has been unemployed for the last six months. They should include why they have a gap and what they have been doing in the down time.


What are cyclohexane functional groups?

Cyclohexane does not have any functional groups. It is a simple hydrocarbon consisting of a ring of six carbon atoms with no additional groups attached.


What are the six American space shutles?

Enterprise - Test shuttle, never flew into space Columbia - Burned up on re-entry Challenger - Exploded on take-off Discovery - Functional Atlantis - Functional Endeavour - Functional


What is the functional group of C6Cl6-hexachlorobenzene?

The functional group of C6Cl6, or hexachlorobenzene, is a benzene ring with all six hydrogen atoms replaced by chlorine atoms. It does not contain any specific functional group such as alcohol or ketone.


What are the capabilities of digital communication systems?

A digital communication system consists of six basic blocks. The functional blocks at the transmitter are responsible for processing the input message, encoding, modulating, and transmitting over the communication channel.


What is the functional group for C6H14?

The functional group for C6H14 is an alkane group, specifically a hexane chain. Alkanes are hydrocarbons with single bonds, and hexane specifically has a chain of six carbon atoms.