Are these carbohydrates only which provide energy or other molecules also?

Question

My biology teacher said that our mitochondrian only has enzymes to break carbohydrates to get energy.Molecules like lipids and proteins are first converted to carbohydrates and then energy is extracted from them.
Is it right? Do lipds and proteins not directly broken down to get energy?

Answer 1

Yes, I think your teacher is right in that. Carbos are fuel, pretty directly. Fats and proteins are more complex, and only part of what you are doing with them is fuel, but to that extent, they are converted to carbs for the purpose. This does not mean, of course, that you do not need all the various types of fuel. They are doing a lot more than just burning; they are bringing nutrients, including trace minerals and vitamins, to you. In the case of protein specifically, they are the building blocks of your muscles and brain cells especially, and you just have to have them. Fats, we know, we tend to get more than we need. But we do need some, or hair and skin get brittle, digestion gets clogged, etc.

It's all in the balance, my dear.

Answer 2

Proteins break down to amino acids and many of them are converted into carbohydrates before they're burned for energy. But many fats are burned via a process in mitochondria called beta oxidation, which breaks off units from fatty acids and makes acetyl CoA. There's lots of NADH produced that can be cashed in for ATP. Then the acetyl CoA intermingles with the same compound made from carbohydrate breakdown and gets burned up in the TCA cycle, again in mitochondria, again with ATP production using the NADH and the FADH2 that are formed when the carbons are being oxidized.

Answer 3

Incorrect. Fatty acid oxidation produces NADH and FADH2 directly. The energy from these is obtained in the mitochondrion. Proteins are converted to energy through either fatty acid or carbohydrate pathways, depending on the individual amino acid.

Answer 4

Yup she is right, carbohydrates are a direct source of energy, lipids, proteins are first broken down into their corresponding carbohydrates, which are then broken down to release energy, necessary to maintain the vital functions of the body.In case of starvation firts the stored glucose in the form of glycogen is used up followed by fat, followed by proteins

Answer 5

the single that provides greater potential while is broken down is sugar because of the fact the final occasion of that's the human physique. we've a variety of sugar is named ATP. while ATP is broken down it releases greater potential that what carbohydrates does. Sugar comes first, then cabohydrates, the proteins, and final lipids. Please remark and value *_*

Answer 6

Yes it is correct. Everything gets converted to carbohydrates then used. If the carbohydrates can't be used, they get stored as fat.