trent1002brown
24.11.2020 •
Chemistry
g Identify the true statements regarding α-1,6 linkages in glycogen. At least four glucose residues separate α‑1,6 linkages. The number of sites for enzyme action on a glycogen molecule is increased through α‑1,6 linkages. New α‑1,6 linkages can only form if the branch has a free reducing end. The reaction that forms α-1,6 linkages is catalyzed by a branching enzyme. Exactly four residues extend from these linkages.
Solved
Show answers
More tips
- F Food and Cooking Homemade French Fries: The Ultimate Guide...
- D Dating, Love, Relationships How Long Can Love Last?...
- A Auto and Moto Mastering One-Movement Parking: All You Need to Know...
- C Computers and Internet How to Properly Order Clothing from International Online Stores...
- H Health and Medicine Headache: A Comprehensive Guide to Treatment...
- F Family and Home How to Choose the Best Diapers for Your Baby?...
- A Auto and Moto Discovering the Leader: What is the Most Expensive Car in the World?...
- F Food and Cooking How to Quickly Put your Child to Sleep?...
- C Computers and Internet How to Create a Website for Free and Easy?...
- F Family and Home Parquet or laminate, which is better?...
Answers on questions: Chemistry
- C Chemistry Atoms of which element react spontaneously with mg2+ (aq)?...
- C Chemistry 50 POINT QUESTION! Which is the Lewis dot structure for H3PO4?...
- C Chemistry A rift valley is evidence of a A convergent boundary. B divergent boundary. C transform boundary. D uniform boundary....
- C Chemistry Difference between halogens and group 0 elements...
- C Chemistry Find a recent article (no more than 3 years old) that discusses a new discovery or technology that uses chemistry and summarise the article. Make sure that you: a. Provide an...
- C Chemistry A cannonball made of iron has a volume of 110. cm3. What is the mass, in kilograms, of the cannonball?...
- C Chemistry Convert 1.25 x 10-6 km to mm...
- C Chemistry How would you present weight change if earth had twice the mass that it does...
- M Mathematics What’s the value of x ? a. 18ft b. 47ft c. 8ft d. 25 ft...
- M Mathematics Julian needs to create an ad for his company that manufactures mobile phones. he has come up with an idea for the ad, but he needs a quality check before the actual product development...
Ответ:
At least four glucose residues separate α‑1,6 linkages.
The number of sites for enzyme action on a glycogen molecule is increased through α‑1,6 linkages.
The reaction that forms α-1,6 linkages is catalyzed by a branching enzyme.
Explanation:
Glycogen is a polymer of glucose and is the primary carbohydrate storage form in animals. The polymer is composed of glucose units linked in alpha(1-4) straight chains and alpha(1-6) branches which occur on average every 8-12 straight chain glucose residues. It has a reducing and non-reducing end. The end of the molecule containing a free carbon number one on glucose is called a reducing end. The other ends are all called non-reducing ends.
During the breakdown of glycogen, glucose units are removed one at a time from the non-reducing end until a point about four glucose residues away from a branch which will require a debranching enzyme to act for further breakdown to occur. Since many such branches occur in a glycogen molecule, it makes it possible for breakdown of glycogen to occur at many points speedily.
Glycogen branching enzyme is required to make alpha (1-6) glycosidic bonds. It transfers 6 to 7 glucose units from the non-reducing end of a straight chain glycogen molecule to an interior position of the same or another glycogen molecule forming alpha (1-6) bonds.
Ответ: