Glycogen metabolism: glycogenolysis: practice question

The best answer is D, Glycogen phosphorylase. Glycogen phosphorylase cleaves alpha-1,4 glycosidic bonds at nonreducing glycogen ends by phosphorolysis, generating glucose-1-phosphate.

Phosphoglucomutase interconverts glucose-1-phosphate and glucose-6-phosphate.

Glycogen synthase elongates glycogen during glycogenesis.

Branching enzyme creates alpha-1,6 linkages during glycogen synthesis.

It tests Glycogen metabolism: glycogenolysis in Biochemistry. Debranching enzyme is required when it approaches an alpha-1,6 branch point.

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

Build one table of enzyme deficiency, disease, inheritance and key finding, then revise it by spaced recall. Then use the flashcards and the other Biochemistry questions on this site to test what stuck.

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.