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.
Answer:
Cancer is unchecked cell growth. Mutations in genes can cause cancer by accelerating cell division rates or inhibiting normal controls on the system, such as cell cycle arrest or programmed cell death. As a mass of cancerous cells grows, it can develop into a tumor.
Answer:
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Es una descendencia. es un nuevo organismo
Answer:
As global warming causes more snow and ice to melt each summer, the ocean and land that were underneath the ice are exposed at the Earth's surface. Because they are darker in color, the ocean and land absorb more incoming solar radiation, and then release the heat to the atmosphere.
