Like this study set? Create a free account to save it.

Sign up for an account

Already have a Quizlet account? .

Create an account

Saturated FA

A FA with no double bonds

Unsaturated FA

A FA with double bonds


Three FA connected to glycerol via an ester linkage

Acid-stable lipase

This enzyme breaks down fat droplets into emulsion droplets in the stomach

Pancreatic lipase

This enzyme attacks emulsion droplets and turns TAG into MAG and 2FAs

Phospholipase A2

Cleaves glycerol phospholipids into FA and lysophophatide


A liver product that is released by the gallbladder which contains detergents derived from cholesterol.


Bile breaks down emulsion droplets into this. They can contain FA, MAG, cholesterol, and hydrophobic vitamins.

Short and medium chain

These types of FA are released into the bloodstream through intestinal cells.

Long and very long chain

These types of FA react with MAG to form TAG before they are put into chylomicrons

Lymphatic system

What system to do chylomicrons use to reach the bloodstream?

Lipoprotein lipase

What enzyme in the blood releases FFAs from chylomicrons?


TAGs made in the liver are transported in blood in the form of....

TAG lipase

This enzyme converts TAG into DAG

Adrenaline, glucagon, ACTH

These hormones activate TAG lipase


This hormone inhibits TAG lipase


This protein binds plasma FFAs as a carrier

Acyl CoA synthetase

This enzyme is the first step in FA metabolism. Uses ATP->AMP to attach CoA to FA.


FAs with >10 carbons must be bound to this to enter the mitochondrion

Carnitine acyltranferase

This enzyme joins a FA to carnitine in the cytosol and in the mitochondrion


This enzyme transports FA-carnitine into the mitochondion

Mitochondria, ER, peroxisome

Beta-oxidation can take place in...

Acyl CoA dehydrogenase

This enzyme connects a FA to CoA in the form of enoyl CoA. There is a one of these for long, medium and short chain FAs.

Enoyl CoA hydratase

This enzyme hydrates the trans double bond of enoyl CoA. The second step in B-oxidation and produces the L-isomer only.

L-3-hydroxyacyl dehydrogenase

The enzyme in the third step of B-oxidation. Oxidizes to form a ketone and produces NADH.


This enzyme repeatedly cleaves off two carbon units in the form of Ac-CoA until the last cycle yields two Ac-CoAs.


How many acetyl-CoA will be produced from a 18-carbon FA?


How many NADH and FADH2 will be produced from an 18-carbon FA?


How many ATP equivalents are burned in the activation stages of FA metabolism.

Enoyl-CoA isomerase

This enzyme converts a cis bond to a trans bond when it is 3 carbons away from the Ac-CoA that is about to be cleaved.

2,4-dienoyl CoA reductase

This enzyme removes the trans bond formed by Acyl-CoA dehydrogenase and change the cis bond of a unsaturated FA one carbon closer to Ac-CoA. The product can now be processed by enoyl-CoA isomerase.


How many acetyl-CoA will be produced from a 18-carbon FA with 1 unsaturated bond?


How many NADH and FADH2 will be produced from a 18-carbon FA with 1 unsaturated bond?

Acetyl-CoA and propionyl-CoA

What are the products of the last step of B-oxidation in an odd numbered FA?

Vitamin B12 and Biotin

What cofactors are required to process propionyl-CoA into succinyl-CoA?


Where are very long chain FAs normally processed?


Generally fats are not converted into carbohydrates.

Odd numbered FA

As an exception, what type of FA could give a net yield of anabolic carbohydrates?

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions and try again


Reload the page to try again!


Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

Voice Recording