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Digestive in Biological Definition

Animal

... signals. There is also typically an internal digestive chamber, with one or two openings. Animals with ... phyla, two are radially symmetric and have digestive chambers with a single opening, which serves as ... similar, but individuals do not have a permanent digestive chamber. The remaining animals form a ...

Digestion

... , digestion is a multi-stage process in the digestive system , following ingestion of the raw ... 1 Human digestion 2 digestive organs 3 digestive hormones 4 Digestion in plants and fungi ...

Enzyme

... 3 Ribozymes 4 Enzymes and health 4.1 digestive and metabolic enzymes 5 Enzyme naming ... make it active; for instance, chymotrypsin , a digestive protease , is produced in inactive form as ... (for example, breaking down blood stains). digestive and metabolic enzymes Nutrition in animals ...

Insulin

... papers and concluded that it was the very digestive secretions that Minkowski had originally studied ... when examined several weeks later the pancreatic digestive cells had died and been absorbed by the immune ... fetal calf pancreas, which had not yet developed digestive glands, and was relieved to find this method ...

Animal

... signals. There is also typically an internal digestive chamber, with one or two openings. Animals with ... phyla, two are radially symmetric and have digestive chambers with a single opening, which serves as ... similar, but individuals do not have a permanent digestive chamber. The remaining animals form a ...

Acrosome

... is completed during testicular maturation. The acrosome contains digestive enzymes (including hyaluronidase and acrosin ) needed to penetrate ... acrosomal vesicle fuses with the plasma membrane of the egg cell, and digestive enzymes are released from the sperm to digest the zona pellucida and give ...

Acrosome

... is completed during testicular maturation. The acrosome contains digestive enzymes (including hyaluronidase and acrosin ) needed to penetrate ... acrosomal vesicle fuses with the plasma membrane of the egg cell, and digestive enzymes are released from the sperm to digest the zona pellucida and give ...

Cancer

... lifecycle (in tissues such as skin or the mucous membranes of the digestive tract ). Normally the balance between proliferation and cell death is ... of the cell. Carcinomas originate in epithelial cells , e.g. skin , digestive tract or glands . Leukemia starts in the bone marrow stem cells . ...

Liver

... comes off the celiac trunk . The portal vein brings venous blood from the digestive tract, so that the liver can process the nutrients and toxins extracted ... first several hundred cases. Analogous organs Arthropods have a digestive gland that functions like a combination of the liver and the pancreas . ...

Muscle

... (in which it controls erection of body hair) to the blood vessels and digestive tract (in which it controls the caliber of a lumen and peristalsis ). ... affecting blood vessels , the respiratory tract (e.g. asthma ), the digestive system (e.g. irritable bowel syndrome ) and the urinary tract (e.g. ...

Nutrition

... (except those cells produced before birth ) is acquired from food in the digestive system . Not all the food matter in the stomach can be used for the body; ... these are chemical catalysts in our food and also produced in our digestive system. They are vitally important in all the metabolic activity in our ...

Anatomy

... Respiratory system Excretory system Circulatory system Lymphatic system Skeletal system ( Human skeleton ) Endocrine system digestive system Immune system Organs : Anus Appendix Brain Breast Colon or large intestine Diaphragm Ear Eye ...

Antibiotic

... effects is diarrhea , which results from the antibiotic disrupting the balance of intestinal flora, the "good bacteria" that dwell inside the human digestive system. Other side effects can result from interaction between the antibiotic and other drugs, such as elevated risk of tendon damage from ...

Archaea

... archaeans are mesophiles , and have been found in environments like marshland , sewage , and soil . Many methanogenic archaea are found in the digestive tracts of animals such as ruminants , termites , and humans. Archaea are usually harmless to other organisms and none is known to cause disease. ...

Biomechanics

... is attributable to a refractory period between twitches. Smooth Muscle (smooth - lacking striations) The stomach, vasculature, and most of the digestive tract are largely composed of smooth muscle. This muscle type is involuntary and is controlled by the enteric nervous system. ...

Blood

... Many forms of medication (from antibiotics to chemotherapy ) are administered intravenously, as they are not readily or adequately absorbed by the digestive tract. As stated above, some diseases are still treated by removing blood from the circulation. Mythology and religion Due to its importance ...

Endoplasmic reticulum

... transmembrane receptors and other integral membrane proteins ) as well as proteins that are to be secreted or " exocytosed " from the cell (e.g., digestive enzymes ). Contents showTocToggle("show","hide") 1 Structure 1.1 Rough ER 1.2 Smooth ER 2 Functions 2.1 ...

Endosymbiont

... and they fill the entire body of their host. These marine worms are nutritionally dependent on their symbiotic chemoautotrophic bacteria lacking any digestive or excretory system (no gut, mouth or nephridia). Bacterial endosymbionts in other marine invertebrates Extracellular endosymbionts are also ...

Endosymbiont

... and they fill the entire body of their host. These marine worms are nutritionally dependent on their symbiotic chemoautotrophic bacteria lacking any digestive or excretory system (no gut, mouth or nephridia). Bacterial endosymbionts in other marine invertebrates Extracellular endosymbionts are also ...

Excretion

... processes, they are in completely different categories. Urine is a waste product of the urinary system process while feces are waste products of the digestive system. Feces may contain about one-third bacteria , most of which are harmless, even beneficial while in the gut , but dangerous to others and ...

Fungus

... molecules from inorganic substances (as plants do). They feed by secreting exoenzymes into the surrounding substrate . Exoenzymes act like the digestive enzymes of animals , breaking apart large organic molecules, but function outside the organism. The smaller organic molecules are then absorbed by ...

Lipase

... (A1, A2 or A3). In the example of human pancreatic lipase (HPL), which is the main enzyme responsible for breaking down fats in the human digestive system , a lipase acts convert triglyceride substrates found in oils from food to mono glycerides and free fatty acids . A myriad of other lipase ...

Nervous system

... responsible for such things as the constriction of the pupil, the slowing of the heart, the dilation of the blood vessels, and the stimulation of the digestive and geniturinary systems. Nervous system diversity The nervous system varies greatly among living animals. Cnidarians , such as sea anemones ...

Endoplasmic reticulum

... transmembrane receptors and other integral membrane proteins ) as well as proteins that are to be secreted or " exocytosed " from the cell (e.g., digestive enzymes ). Contents showTocToggle("show","hide") 1 Structure 1.1 Rough ER 1.2 Smooth ER 2 Functions 2.1 ...

Endoplasmic reticulum

... transmembrane receptors and other integral membrane proteins ) as well as proteins that are to be secreted or " exocytosed " from the cell (e.g., digestive enzymes ). Contents showTocToggle("show","hide") 1 Structure 1.1 Rough ER 1.2 Smooth ER 2 Functions 2.1 ...

Endoplasmic reticulum

... transmembrane receptors and other integral membrane proteins ) as well as proteins that are to be secreted or " exocytosed " from the cell (e.g., digestive enzymes ). Contents showTocToggle("show","hide") 1 Structure 1.1 Rough ER 1.2 Smooth ER 2 Functions 2.1 ...

Stem cell

... in the dermis , the inner layer of the skin. These stem cells play a pivotal role in healing small cuts. Blood vessels , the dental pulp, the digestive epithelium , the retina , liver and even the brain are all said to contain stem cells. Adipose derived adult stem (ADAS) cells have also ...

Symbiosis

... ectosymbiosis and endosymbiosis . In ectosymbiosis, the symbiont lives on the body surface of the host, including the inner surface of the digestive tract or the ducts of exocrine glands. In endosymbiosis, the symbiont lives in the intracellular space of the host. An example of mutual ...

Vesicle

... in the Golgi apparatus , but also in the endoplasmic reticulum , or are made from parts of the plasma membrane . Lysosomes (membrane-bound digestive vesicles) can digest macromolecules (break them down to small compounds) that were taken in from the outside of the cell by an endocytic vesicle. ...

Yellow fever

... the disease. In a proportion of cases there is also involvement of internal organs - liver, kidneys and the heart. There may be hemorrhage from the digestive tract (bloody vomit). Later the disease is sometimes complicated by jaundice with liver failure and/or renal insufficiency with proteinuria. If the ...
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