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Exocytosis

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12y ago

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What occurs to a molecule of the enzyme trypsin AFTER human pancreas binds to a molecule of protein?

Trypsin is an enzyme that is produced in the pancreas. After the human pancreas binds to a molecule of protein, auto catalysis occurs to a molecule of trypsin.


How does an enzyme change how a reaction occurs?

An enzyme speeds up your reaction in your body.


Where in the alimentary canal does lipase act?

Lipase primarily acts in the small intestine, where it plays a crucial role in the digestion of fats. While a small amount of lipase is produced in the mouth (salivary lipase) and stomach (gastric lipase), the majority of fat digestion occurs in the small intestine, where pancreatic lipase is secreted. This enzyme breaks down triglycerides into fatty acids and glycerol, facilitating their absorption by the intestinal lining.


What are the enzymes produced in the stomach?

The main enzyme in the Stomach is Pepsin which is used to digest protein. Only protein digestion occurs in the stomach and almostt no absorption, (only a little alcohol). This protein is not secreted as its active form (ie not as pepsin) but as the Zymogen (the inactive precursor to proteins) Pepsinogen which cleaves in a low pH to form the active enzyme.


The secretion of noradrenalin into the synaptic cleft occurs by which of the following processes a. exocytosis b. pinocytosis c. endocytosis d. active transport?

When a chemical such as noradrenalin is secreted outside of a cell, it is called exocytosis.


Where does Maximum formation of RNA occurs?

Maximum formation of RNA occurs in the nucleus of eukaryotic cells, where transcription takes place. RNA is produced from DNA templates by the enzyme RNA polymerase, and the nucleus provides a controlled environment for this process to occur efficiently.


When dehydration occurs what hormone secreted by the pituitary causes the kidneys to conserve water?

ADH


Where and when lactose metabolism occurs in humans?

Digestive System.


The digestion of fat occurs in the small intestine the enzyme for this is called?

Lipase


What occurs when there is a deficiency of the enzyme alpha-galactosidase A?

Without the alpha-galactosidase A enzyme, fatty compounds starts to line the blood vessels.


Why are enzymes three dimensional shape so important?

An enzyme's three dimension shape is important to the binding that occurs between the enzyme itself and its specific substrate, forming the enzyme-substrate complex. In order for the enzyme to create a reaction it is important that the shape of the enzyme binds the substrate to the active site where the chemical reaction occurs. One other thing to consider is the shape that the enzyme takes that allows only its specific substrate to bind and not any other molecule.


Where is pepsin produced?

pepsin (which breaks down protein) is produced in the stomach unlike the enzymes amylase (which breaks down carbohydrates) and lipase (which breaks down lipids or fats) which are produced in the pancreas.