Metabolism + energy storage

Why is energy storage necessary

Make most of high food availability to weather low food availability

Benefits of adipocytes ( white cells )

Energy dense

Stored w/o hydration

Efficient storage compartments

Formation of fatty acids from acetyl CoA

Acetyl-CoA + Oxaloacetate —> Citric acid into cytoplasm —> acetyl-CoA (+ oxaloacetate) + ATP + acetyl-CoA carboxylase —> Malonyl-CoA ( precursor to fatty acids )+ ADP + CO2

Storage of fats

transported by very low density lipoprotein formed in the liver by golgi apparatus —> fill up fat cells

Difference between glycogen in liver + muscle

Glycogen in liver broken down to glucose —> transported to other organs

Glycogen in muscles are used in muscle cells

Glycogen synthesis

Glucose + hexokinase/ glucokinase —> glucose 6-P+ phosphopglucomutase —> glucose 1-P + glycogen synthase —> glycogen

Glycogenolysis

Glycogen + glycogen phosphorylase —> glucose-1-P + phosphoglucomutase —> glucose-6-P

Simulants + inhibitants of glycogen phosphorylase

Stimulants: AMP + Ca2+

Inhibitants: ATP