Question

Place the steps regarding fat digestion and absorption in the correct order. The abbreviation TAG is used for triacylglycerol (triglyceride).

1. Undigested fats enter the small intestine

2. The gallbladder secretes bile into the small intestine

3. Intestinal lipases hydrolyze TAG's in mixed micelles

4. Free fatty acids are absorbed through the lining of the small intestine

5. Free fatty acids are converted back to TAGs

6. Lipoprotein lipase hydrolyzes TAGs in chylomicrons

7. TAGs are solubilized by the formation of mixed micelles

8. TAGs are packaged into chylomicrons for transport in the lymph and bloodstream

Answer 1

1) Undigested fats enter the small intestine.

2) The gallbladder secretes bile into the small intestine.

3) Free fatty acids are absorbed through the lining of the small intestine.

4) TAGs are packaged into chylomicrons for transport in the lymph and bloodstream.

5) Intestinal lipases hydrolyze TAG's in mixed micelles.

6) Lipoprotein lipase hydrolyzes TAGs in chylomicrons.

7) TAGs are solubilized by the formation of mixed micelles.

8) Free fatty acids are converted back to TAGs.