Dictionary » G » Glycogen

Glycogen

Definition

noun, plural: glycogens

A branched polymer of glucose that is mainly produced in liver and muscle cells, and functions as secondary long-term energy storage in animal cells.


Supplement

Glycogen is sometimes referred to as "animal starch." It is an analogue of starch in plants, only it is less branched. Under the microscope, glycogen has a characteristic asterisk or star appearance. When the body needs energy, glycogen is broken down into glucose with glucagon. Small amounts of glycogen can be found in the kidneys, and some glial cells in the brain and white blood cells. The uterus also stores glycogen during pregnancy to nourish the embryo.


See also: glycogenesis


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


Why ?

amino acids cannot be stored as the nitrogen is toxic.They must be deaminated and excreted as urea. Glycogen and triglyceride are storage of energy.

See entire post
by mavis
Thu Feb 21, 2013 5:32 am
 
Forum: Human Biology
Topic: Why ?
Replies: 3
Views: 437

Why ?

Glycogen is the fastest source of energy, but for sure not the main source of energy.

See entire post
by JackBean
Mon Jan 07, 2013 10:23 am
 
Forum: Human Biology
Topic: Why ?
Replies: 3
Views: 437

Why ?

They are stored that way - only glucose is stored as glycogen. Whether amino acids get "stored" depends upon how your define the term, and lipids are definitely stored.

See entire post
by Darby
Sun Jan 06, 2013 11:11 pm
 
Forum: Human Biology
Topic: Why ?
Replies: 3
Views: 437

Why ?

why foods are stored in body as glycogen form in animals? why it can not stored as amino acids or fatty acid or trigleceride?

See entire post
by Helics
Sun Jan 06, 2013 3:56 am
 
Forum: Human Biology
Topic: Why ?
Replies: 3
Views: 437

Re: Converting Glucose to Fat or ATP?

... the pancreas. It signals to cells to take up the glucose in the blood. Some glucose is needed immediately for energy. The rest is stored away in glycogen reserves in the liver and muscle. When the glycogen stores are filled, leftover glucose is converted into fat, and stored in that way (this ...

See entire post
by lisa3714
Thu Dec 08, 2011 12:23 am
 
Forum: Cell Biology
Topic: Converting Glucose to Fat or ATP?
Replies: 13
Views: 22948
View all matching forum results

This page was last modified 13:00, 3 December 2009. This page has been accessed 27,998 times. 
What links here | Related changes | Permanent link