Metabolism Module 2 Topic 1: Glucose Sources

8 flashcards · Other · by Haroon Chehabzada

1. What dietary sources create glucose and where is it stored ?

   Food containing carbohydrates and glycogen

2. How do you get glucose into the bloodstream ?

   diet and stored glycogen

3. Describe what kind of chemical structure does Glycogen have ?

   Glycogen is a branched chain polymer of glucose with a-1,4 and a-1,6 branch points

4. What does glycogenolysis involve and which bonds are broken down to create glucose 1-phosphate molecules

   Glycogen phosphorylase which breaks down glucose through a(1-4) glycosidic bonds

5. What does the debranching enzyme in glycogenolysis remove ?

   Debranching enzyme activity removes a-1,6 links and transfers the 3 remaining glucose residues through a(1->4)

6. Name 2 disorders related to glycogenolysis ?

   • Hers' disease: phosphorylase deficiency in the liver • Cori's disease: debranching enzyme deficiency

7. What are light waves ?

   Light waves are electromagnetic waves that travel through the vacuum of space

8. What are the properties of light ?

   • Light has both wave-like and particle-like properties • It exhibits wave-like properties when it interferes with other light waves It exhibits particle-like properties when it is emitted or absorbed by matter