Question

Long-chain fatty acids have an alkyl chain of more than 10 carbon atoms. Fatty acids with alkyl chains of this length are characterized as ____ in terms of polarity and ___ in terms of size. This length decreases their ability to cross the lipid bilayer of the mitochondrial membrane. As a result, such fatty acids are activated in the cytoplasm by ___ . However, the resulting molecule, fatty acyl-CoA, is still too ____ to cross the membrane. Therefore, a protein system involving carnitine is required for this transport to occur.

Answer 1

Saturated fatty acids,long, thiokinase,large

Step-by-step explanation:

Long chain fatty acids have an alkyl chain of more than 10 carbon atoms.Fatty acids with alkyl chains of this length are characterized as saturated fatty acids in terms of polarity and long in terms of size.This length decrease their ability to cross the lipid bilayer of the mitocondrial membrane.As a result such fatty acids are activated in the cytoplasm by thiokinase.However the resulting molecule fatty acyl CoA is still too large to cross the membrane.Therefore a protein system involving carnitine is required for this transport to occur.