THE ACTIN has the active site to which the heads of the thick filament will bind.
The muscle is made up of two major protein fibers, which are the actin and the myosin. Muscle contractions occur when myosin and actin slide over each other in a series of repetitive events. The protein actin has a thin structure and is abundant in eukaryotic cells while myosin is a thick filament.
The biosynthesis of fatty acids and lipids meets two imperatives in the
cell :
- supply of fatty acids necessary for the synthesis of structural lipids;
- storage of energy.
The synthesis of fatty acids goes through a dehydration step during its synthesis. and its catabolism goes through a hydration stage, which shows the importance of H2O molecules to build lipids (even cholesterol).
Synthesis of the fatty acid:
firstly, acetyl-ACP and malonyl-ACP were condensed, followed by reduction of acetoacetyl-ACP to β-hydroxybutyryl-ACP, followed by dehydration of β-hydroxyacyl-ACP, and finally reduction of the double bond by NADPH + H
Catabolism:
The reverse steps will occur: a beta oxidation, a hydration of the molecule, and finally another oxidation.
As the flower takes water that it needs to survive, the dye in it has no more density so it goes up with the water dying everything in its path blue.
1. God
2. God
3.God
God made the Earth. :)
Many older people spend much of their time indoors. As a result, they are less exposed to the sun causing them to be vitamin D deficient.
