Question

Pancreatic Lipase acts upon

• A. Triglycerides
• B. Glycogen
• C. Polypeptides
• D. Disaccharides

Answer 1

The correct option is A

Triglycerides

The correct option is A.
Explanation of the correct option:

1. For efficient dietary triglyceride digestion, pancreatic triglyceride lipase (PTL) and its protein cofactor, colipase, are necessary.
2. In addition to PTL, pancreatic acinar cells produce two pancreatic lipase-related proteins (PLRP1 and PLRP2) that are quite similar to PTL in sequence and structure.
3. Enzyme adsorption on the polymer surface and hydro-peroxidation/hydrolysis of the bonds are the two steps of the enzymatic degradation process.
4. The sources of enzymes that break down plastic include bacteria from varied settings and the intestines of some animals.

Explanation of the incorrect option:

Option B:

1. Glycogen is the carbohydrate storage form in mammals.
2. The liver and skeletal muscles store the majority of glycogen in humans.
3. The conversion of glucose-1-phosphate from the reducing end of glycogen is catalyzed by the enzyme glycogen phosphorylase (GP).
4. Pyridoxal-5'-phosphate, a cofactor used by the enzyme, is linked to a K681 residue by a Schiff base in the active site.

Option C:

1. A polypeptide is an unbranched, continuous chain of amino acids linked together by peptide bonds.
2. The peptide bond joins one amino acid's carboxyl group to the amine group of the next amino acid to form an amide.

Option D:

1. When two monosaccharides (simple sugars) are linked together by glycosidic linkage, a disaccharide (also termed a double sugar) is created.
2. Disaccharides are soluble in water like monosaccharides.
3. Sucrose, lactose, and maltose are all examples of sugars.

Final answer: Pancreatic Lipase acts upon triglycerides.