2006-11-06 07:14:55 · 16 answers · asked by BaD mAn R 1 in Science & Mathematics ➔ Biology
It comes from the carbohydrates we eat.
For example:
1. from honey
2. from sugar
3. from bread
4. from syrups.
It may come also from internal sources like from liver glycogen (this word means that it can generate glucose), from lactate (through the "reverse" of glycolysis), from glycerol that comes from tri-glycerides (fats and oils), from glucogenic amino acids such as alanine.
One of the most beautiful and amazing metabolic web is the use and formation of "glucose"!
2006-11-07 10:18:47 · answer #1 · answered by Vovó (Grandma) 7 · 0⤊ 0⤋
The glucose in your body is provided by the food you eat. The carbohydrate molecules are broken down into single glucose molecules, which are then used in glycolysis. Lipids and proteins can also be used instead of glucose, but your body will always try and use glucose first. This is why when your glucose levels run out, eg in the middle of running a marathon, runners 'hit the wall' when their body runs out of glucose and has to turn to lipids to obtain its energy source for glycolysis.
Glycolysis = a metabolic pathway for obtaining NAD and NADP from glucose
2006-11-06 07:21:14 · answer #2 · answered by Anonymous · 1⤊ 0⤋
Well the process for plants and animals are the opposite in terms of how they get there energy. Plants make their own food for energy with the help of the sun and water. Plants use carbon dioxide and give off oxygen and we (animals and humans) use oxygen and breath out carbon dioxide. Since we can't make our own food like plants can, we must consume it. The food we consume is broken down into glucose, a simple sugar. We undergo a process known as glycolysis which breaks down glucose in 10 steps to produce pyruvate which in turn generates ATP the main source of energy. During this process we rely on oxygen and water.
2016-05-22 04:53:23 · answer #3 · answered by Anonymous · 0⤊ 0⤋
The glucose sugar comes from the food we eat, especially starchy foods like carbohydrates.
Lots of energy is stored in the food, and when we eat it, it is used in respiration with oxygen which breaks it down to give us the energy.
2006-11-06 07:18:40 · answer #4 · answered by vicky angel 2 · 1⤊ 0⤋
Glucose comes from the sugar in the foods you eat. Glucose is your body's sugar.
2006-11-06 07:16:49 · answer #5 · answered by thecrazyone 2 · 1⤊ 1⤋
Glucose, as I'm sure you're already aware, is a simple sugar. It comes from the foods that we eat, predominantly carbohydrates.
2006-11-06 07:24:58 · answer #6 · answered by micksmixxx 7 · 1⤊ 0⤋
carbohydrates break down into glucose(sugar) then if we don't use the glucose for energy it is stored in the body as fat this is something you have to be aware of if you are still putting on weight when you have cut out sugar
2006-11-06 07:30:43 · answer #7 · answered by retroman 3 · 0⤊ 1⤋
Carbohydrates that we eat in our food are broken down to glucose. Glucose is stored as glycogen in our bodies.
2006-11-06 07:17:58 · answer #8 · answered by coolcat 3 · 1⤊ 0⤋
the glucose comes from the food we break down in our intestines by enzymes
2006-11-07 05:15:21 · answer #9 · answered by alli_aldridge 1 · 0⤊ 0⤋
The full chemical cycle for the processing of sugars for energy is the Krebs cycle.
http://en.wikipedia.org/wiki/Krebs_Cycle
Its quite complicated, but you'll learn if if you study biochemistry at Uni.
2006-11-06 07:21:56 · answer #10 · answered by Anonymous · 1⤊ 0⤋