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Found P.o. 139 times.

Displaying results 1 to 10.

1. P.o. (per os)
P.o. is the abbreviation for per os, signifying oral administration (e.g., that a drug is to be swallowed).

2. Phosphate group
A -PO4 group on a larger molecule, where the P (phosphorus) is single bonded to each of the four O's (oxygen), and the other bond of one of the O's is attached to the rest of the molecule. This means that the entire group has a net negative charge of -3 (from the "free" second bonds on the oxygen atoms which are only bonded to the phosphorus atom). Often hydrogen atoms will be attached to the O's. Sometimes double bonds between the P and an O are present.

3. Phosphate group
A chemical group composed of a central phosphorous bonded to three or four oxygens. The net charge on the group is negative.

4. Phosphodiester bond
The covalent bond that attaches a phosphate group to a molecule by way of an oxygen atom (which, out of two possible bonds, is bonded to the phosphate group on one side and the rest of the molecule on the other). This is the type of bond that links the nucleotide subunits together to make a DNA or RNA molecule.

5. Phosphodiester linkage
A chemical linkage in which two alcohol s are esterically bound to a bridging molecule of phosphoric acid.

6. Phosphodiesterase
An enzyme that catalyzes the hydrolytic cleavage of a phosphodiester bond, such as when cyclic AMP is coverted to 5' -adenylate.

7. Phosphoenolpyruvate
An enol phosphate, phosphoenolpyruvate is formed by the dehydration of 2-phosphoglycerate during glycolysis . It has a very high phosphoryl group-transfer potential due to its enol form being converted in a ketone (pyruvate).

8. Phosphofructokinase
This enzyme is the pacemaker of glycolysis . It is inhibited by citrate, H+, and large amounts of ATP . It is activated by AMP and fructose 1,6-bisphosphate .

9. Phosphogluconate pathway (pentose phosphate pathway)
This oxidative pathway starts with glucose 6-phosphate and eventually results in the creation of pentose phosphates and NADPH .

10. Phosphoglucose isomerase
In glycolysis , phosphoglucose isomerase is the enzyme responsible for the isomerisation of glucose 6-phosphate, an aldose , to Fructose 6-phosphate, a ketose .

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