... applied to any organic compound in which a hydroxyl
group ( - O H ) is bound to a carbon atom, ...
The functional group of an alcohol is a hydroxyl
group bonded to an sp 3 hybridized carbon. It ... Phenol , an alcohol where the hydroxyl
group is bound to a benzene ring
... aldehydes and ketones with many hydroxyl
groups added, usually one on each carbon except ... .
Further, each carbon atom that supports a hydroxyl
group (except for the first and last) is ... The aldehyde or ketone group may react with a hydroxyl
group on a different carbon atom to form a ...
... . In this ring, each carbon is linked to hydroxyl
and hydrogen side groups with the exception of ... has to do with the isomeric conformation of the hydroxyl
on carbon 5. If it is to the right in the ... they differ in the orientation of the hydroxyl
group linked to the first carbon in the ring. ...
... group of each fatty acid is esterified to the hydroxyl
groups on carbon-1 and carbon-2. The phosphate ... formed from a phosphoester linkage between the hydroxyl
of an alcohol ( serine or inositol ) and ... . Subsequent substitution of the terminal hydroxyl
group by phosphatidyl choline forms ....
... from DNA by the presence of an additional hydroxyl
group, attached to each pentose ring; as well ... from DNA except for the critical presence of a hydroxyl
group attached to the pentose ring in the 2' position (DNA has a hydrogen atom rather than a hydroxyl
... that involves breaking an ester link, one hydrolysis product contains a hydroxyl
functional group , while the other contains a carboxylic acid ... The fragment that was originally an alkyl group collects the remaining hydroxyl
group from the water molecule.
Thus the ester is effectively reversed ...
... of the kidney
The kidney regulates the pH, mineral ion concentration and water composition of the blood.
By exchanging hydronium ions and hydroxyl
ions , the blood plasma is maintained by the kidney at pH 7.4. Urine, on the other hand, becomes either acidic at pH 5 or alkaline at pH 8.
... makes them amphiphilic molecules (having both hydrophobic and hydrophilic portions). In the case of cholesterol , the polar group is a mere -OH ( hydroxyl
or alcohol). In the case of phospholipids, the polar groups are considerably larger and more polar, as described below.
Phospholipids or, more ...
Several highly reactive, transient oxygen derivatives can be formed during this process:
Pentose phosphate pathway
... of glucose 6-phosphate into 6-phosphoglucono-δ-lactone . This reaction is catalyzed by glucose 6-phosphate dehydrogenase . The hydroxyl
group located on carbon 1 of glucose 6-phosphate is converted into a keto group, and in the process, NADPH is generated.
The second step is the ...