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Hormones in Biological Definition

Anabolism

... and vice versa. Most of the known signals are hormones of various types. Endocrinologists have traditionally classified many of the hormones as anabolic or catabolic. Classic anabolic hormones include Growth hormone IGF1 and other ...

Blood

... different substances ( amino acids , lipids , hormones ) to be transported between tissues and organs. ... system defending the body against infection . hormones also travel in the blood. There are about 4-6 ... factors immunoglobulins (antibodies) hormones various other proteins various ...

Brain

... heartrate and breathing. Brains also produce hormones that can influence organs elsewhere in a body and brains react to hormones produced elsewhere in the body. In mammals, most of these hormones are released into the circulatory system by a ...

Anabolism

... and vice versa. Most of the known signals are hormones of various types. Endocrinologists have traditionally classified many of the hormones as anabolic or catabolic. Classic anabolic hormones include Growth hormone IGF1 and other ...

Digestion

... 2 Digestive organs 3 Digestive hormones 4 Digestion in plants and fungi ... easier digestion of cellulose. Digestive hormones There are at least four hormones that aid and regulate the digestive system: ...

Hormone

... plants ) produce hormones. The best known hormones are those produced by endocrine glands of vertebrate animals, but hormones are produced by nearly every organ system and ... of a distant organ of the body. The function of hormones is to serve as a signal to the target cells; the ...

Insulin

... There are two groups of mutually antagonistic hormones affecting blood glucose levels: hyperglycemic hormones (such as glucagon , growth hormone , and ... dangerously low levels, release of hyperglycemic hormones (most prominently glucagon from Islet alpha ...

Semen

... and salt ions , sugars , lipids , steroid hormones , enzymes , prostaglandin hormones, amino ... their diffusion out of the semen. Prostaglandin hormones are involved in supressing an immune response by ... Can semen cure the blues? hormones in semen may help to ease female depression ...

Signal transduction

... 2.2 Intracellular 2.3 Intercellular 2.4 hormones 3 Types of receptors 3.1 ... cell or cells immediately adjacent. hormones Most of the molecules that enable signalling ... an individual animal or plant are known as " hormones ." Hormone-initiated signal transduction takes ...

Ecdysone

... the major insect moulting hormone 20-hydroxyecdysone . Insect moulting hormones (ecdysone and its homologues) are generally called ecdysteroids . Ecdysteroids act as moulting hormones of arthropods but also occur in other invertebrates where they can play ...

Osmoregulation

... excretion: getting rid of metabolic wastes and other substances such as hormones which would be toxic if allowed to accumulate in the blood via organs such ... the amount of water in urine waste. With the help of naturally producing hormones such as antidiuretic hormone , aldosterone , and angiotensin II , the ...

Blood plasma

... Blood plasma contains proteins , nutrients , metabolic end products , hormones , and inorganic electrolytes . Serum is the same as blood plasma except ... and mineral salts. It serves as transport medium for glucose , lipids , hormones , products of metabolism, carbon dioxide and oxygen . (Oxygen transport ...

Albumin

... and thus need less albumin to maintain proper fluid distribution. Functions of albumin: Maintains oncotic pressure Transports thyroid hormones Transports other hormones, particularly fat soluble ones Transports fatty acids ("free" fatty acids) Transports unconjugated bilirubin ...

Bone

... are typically viewed as bone forming cells. They are located near to the surface of bone and their functions are to make osteoid and manufacture hormones such as prostaglandin which act on bone itself. Osteoblasts are mononucleate. Active osteoblasts are situated on the surface of osteoid seams* and ...

Cell growth

... size of plant cells is complicated by the fact that almost all plant cells are inside of a solid cell wall . Under the influence of certain plant hormones the cell wall can be remodeled, allowing for increases in cell size that are important for the growth of some plant tissues. Most unicellular ...

Morphogenesis

... life cycle, or to refer to the evolution of a body structure within a taxonomic group . Morphogenetic responses may be induced in organisms by hormones , or by environmental chemicals ranging from substances produced by other organisms to toxic chemicals or radionuclides released as pollutants. ...

Endoplasmic reticulum

... It takes part in the synthesis of various lipids (e.g., for building membranes such as phospholipids ), fatty acids and steroids (e.g., hormones ), and also plays an important role in carbohydrate metabolism , detoxification of the cell (enzymes in the smooth ER detoxify chemicals), and ...

Enzyme

... Cytochrome c peroxidase takes reducing equivalents from cytochrome c and reduces hydrogen peroxide to water Deiodinase : activates thyroid hormones by the removal of iodine Diastase : break starch into glucose Dihydrofolate reductase : reduces dihydrofolic acid to tetrahydrofolic ...

Eukaryote

... which collect and expel excess water, and extrusomes , which expel material used to deflect predators or capture prey. In multicellular organisms, hormones are often produced in vesicles. In higher plants, most of a cell's volume is taken up by a central vacuole or tonoplast, which maintains its ...

Homeostasis

... The kidneys remove urea , and adjust the concentrations of water and a wide variety of ions . Most of these organs are controlled by hormones secreted from the pituitary gland , which in turn is directed by the hypothalamus . See also Acclimatization Biological rhythm ...

Kidney

... by means of peristalsis . Renal functions Renal functions include the excretion of waste material from the bloodstream, secretion of hormones - particularly erythropoietin and renin and maintaining serum electrolyte, acid-base levels and osmolality. For more info see Renal physiology ...

Liver

... (the formation of glucose from glycogen ) Glycogenesis (the formation of glycogen from glucose) The breakdown of insulin and other hormones The liver also performs several roles in lipid metabolism: Cholesterol synthesis The production of triglycerides (fats). ...

Morphogenesis

... life cycle, or to refer to the evolution of a body structure within a taxonomic group . Morphogenetic responses may be induced in organisms by hormones , or by environmental chemicals ranging from substances produced by other organisms to toxic chemicals or radionuclides released as pollutants. ...

Nephron

... solutes (such as glucose , amino acids , phosphates , and so on) according to the body's needs under hormonal control , or from anti-diuretic hormones , aldosterone , parathyroid hormone , atrial-natriuretic peptide and others. In this process urine is produced, and in doing so, eliminates ...

Neurotransmitter

... their derivatives) are also generally admitted as neurotransmitters in autonomic neurons. Over 50 neuroactive peptides have been found, among them hormones such as LH or insulin that have specific local actions in addition to their long-range signalling properties. It is important to appreciate that it ...

Nutrition

... , and fertilizers damaging to the foods produced by use of these methods (see also organic farming )? Are the use of antibiotics and hormones in animal farming ethical and/or safe? Sociological issues: How do we minimise the current disparity in food availability between first ...

Parthenogenesis

... estrogen levels are high. Lizards that act out the courtship ritual have greater fecundity than those kept in isolation due to the increase in hormones that accompanies the fake sex. So, even though asexual whiptail lizards populations lack males, they still require sexual stimuli for maximum ...

Phloem

... solutes out of the sieve-tube elements, producing the exactly opposite effect. Organic molecules such as sugars, amino acids , certain hormones , and even messenger RNAs are transported in the phloem through sieve tube elements . Phloem is produced in phases. Primary phloem is laid down ...

Endoplasmic reticulum

... It takes part in the synthesis of various lipids (e.g., for building membranes such as phospholipids ), fatty acids and steroids (e.g., hormones ), and also plays an important role in carbohydrate metabolism , detoxification of the cell (enzymes in the smooth ER detoxify chemicals), and ...

Endoplasmic reticulum

... It takes part in the synthesis of various lipids (e.g., for building membranes such as phospholipids ), fatty acids and steroids (e.g., hormones ), and also plays an important role in carbohydrate metabolism , detoxification of the cell (enzymes in the smooth ER detoxify chemicals), and ...

Endoplasmic reticulum

... It takes part in the synthesis of various lipids (e.g., for building membranes such as phospholipids ), fatty acids and steroids (e.g., hormones ), and also plays an important role in carbohydrate metabolism , detoxification of the cell (enzymes in the smooth ER detoxify chemicals), and ...

Twin

... one twin loses a Y chromosome (boys have chromosome type XY while girls have XX). Without a Y chromosome to trigger the production of male sex hormones , this fetus develops as a girl by default, but a girl with only one X chromosome (chromosome type XO). The co-twin is unaffected, and develops ...
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