How does fat get put on... - Saxperience

Barry123 · 27th June 2006, 21:58

... and similarly how does it get taken off.

Dont going say 'eat shit = put on weight'

I actually mean the technicalities, what chemical process goes on to break down and store the fat and visa versa.

Anyone?

GEEKS REVEAL YOURSELVES!!!

Baz · 27th June 2006, 22:23

Quote:

=adsayer 'eat shit = put on weight'

defo not that

i eat loads of junk food and im 10st

jaybiss · 28th June 2006, 00:01

but you may have a high matabolism baz

Baz · 28th June 2006, 01:19

Quote:

Originally Posted by jaybiss

but you may have a high matabolism baz

yeh i do

do plenty of exercise aswell so, thats helps a great deal.

craigy_87 · 28th June 2006, 01:23

ahh high metabolism if i didnt have that i'd be a fat bastard for sure lol i remember something about this in my biology course ... soz cant remember i went into computing instead sorry
craigy

bullit · 28th June 2006, 23:25

excess calories that arent used

Baz · 28th June 2006, 23:27

how do you actually know if you got a high metabolism or not?

beastgtir · 28th June 2006, 23:39

u shit yaself at something scary

vtrchris64 · 29th June 2006, 00:17

Quote:

Originally Posted by beastgtir

u shit yaself at something scary

lmao thats true

Barry123 · 29th June 2006, 00:19

haha
comedy!

Mitchell · 29th June 2006, 00:34

fast metabolisms suck.. soon as u eat, ur shittin it back out 5 mins after lol

westyvtr is probably the only bloke to spk to about the fat thing

Baz · 29th June 2006, 00:36

Quote:

Originally Posted by Krovean

fast metabolisms suck.. soon as u eat, ur shittin it back out 5 mins after lol

always wondered why i needed a shit 10 mins after eating my tea some days lol

barrett^p · 29th June 2006, 08:08

Food is broken down and digested in the digestive tract which consists of mouth (salivary amalyase which starts to bread down startch, and mechanically mushes the food up)

Down the oesophagus which does nothing and leads to the stomach.

In the acidic conditions of the stomach HCL (acid) is release from the cheif cells and pepsin from the paretial cells. This is where the proteins are broken down, and a tiny amount of absorption happens.

This bolus of food in the stomach now called chyme passes into the small intestine which is split in to three sections duodenum, jejunum and ileum.

Then the food enters the duodenum (1st part) this triggers the release of hormones and neverous input to cause the release of Bile Secretions and Pancreatic secretions into the mix. The bile emulsifies the fat in the food and breaks it down into the constituants, fatty acids and triglycerides. From here they are absorbed over the small intesting membrane into the blood stream. In the blood stream they are extracted into cells and used as energy.

If there is an excess amount in the blood stream then they are converted to a different products and deposited around the body in fat stores. Belly, back, legs, etc.

When there is a low circulating level of glucose that can be used as energy then the stored products of fat are broken down and transported back into the blood stream and then carried around the body!

Hope that answers your question.

Well, thats my GI revision for my anatomy and physiology exam on monday!

WestyVTR · 29th June 2006, 08:55

LMBO!!

"How does fat get up on"

fat as said above is exess energy! If you consume more calories than you expend your body will "save it for later" in the form of fat cells!

"What is fat"

Adipose tissue, stored around the body for insulation & protection (subcontaineous fat) & will be used in conjunction with your bodies metabolic demands.

"How your body breaks down fat"

When your not eating or digesting food you are using your bodies internal energy stores in the form of complex carbohydrates, fats &/or proteins, ( infact your brain can only use Glucose for its enery & it is acually 1/3 fat! ).

step 1 - is to break down the complex carbohydrates into simple sugars "glucose" this process is called ""glycogenolysis""

step 2 - after carbohydrate stores are depleated, your body will break down fat into "glycerol" this process called ""lipolysis"" after being broken down it is either used directly for energy production or can be reverted into glucose via a process called """gluconeogenesis""" in this process amino acids call also be used to make glucose.

In the fat cell, other types of lipases (enzymes that breakdown lipid molicules) - ( lipid's = fatty acids ) work to break down fats into fatty acids and glycerol. These lipases are activated by various hormones, such as glucagon, epinephrine and growth hormone. The resulting glycerol and fatty acids are released into the blood, and travel to the liver through the bloodstream. When at the in liver, the glycerol and fatty acids can be either further broken down or used to make glucose & energy.

water, oxygen & sugars are all needed to produse sustained energy.

"in chemical terms" - Aerobic Respiration

C6H12O6 + 6O2 == 6CO2 + 6H2O + Energy

"in chemical terms" Anaerobic Respiration

C6H12O6 = 2C2H5OH + 2CO2 + Energy

Barry123 · 29th June 2006, 09:00

yeah i knew that man, i meant the chemical process involved in converting the fat from food and how it eventually resides in the skin and around some organs...

barrett^p · 29th June 2006, 12:39

Quote:

Originally Posted by adsayer

yeah i knew that man, i meant the chemical process involved in converting the fat from food and how it eventually resides in the skin and around some organs...

Its not really a chemical process its just depostied there for storage.

Like you put petrol in the car and it kept in the fuel tank till you need it, fat is a fuel for when you need it.

Its horrible when you see peoples adipose tissue layer, it in the 'large' person it is very thick.