Is the oil from the human body what people often call fat?

Grease is a collective term for oils and fats. Chemically speaking, oils and fats are esters formed by high-grade fatty acids and glycerol. Fats and fats are derivatives of hydrocarbons.

Oils and fats are a special ester. Oils and fats in nature are a mixture of many substances, and their main components are esters formed by the dehydration of one molecule of glycerol and three molecules of higher fatty acids, called triglycerides.

The main physiological functions of oils and fats are storage and heat energy, <>

Oils and fats are widely distributed, and there are a certain amount of oils and fats in the seeds of various plants, animal tissues and organs, especially the seeds of oil crops and the adipose tissue under the skin of animals, which are rich in oil. Fat in the human body makes up about 10% to 20% of body weight. They are a backup energy source for life-sustaining activities.

When a person eats a small amount of food and the energy consumed by the food is not enough to pay for the energy consumed by the body, the body will consume fat to provide energy, and the person will lose weight in lipids.

It is a general term for oils, fats, and fats. The fats and fats in food are mainly oils and fats, and those that are liquid at room temperature are generally called oils and <>

What is solid at room temperature is called fat. Fats are triacylglycerides composed of glycerol and fatty acids, in which the molecule of glycerol is relatively simple, while the type and length of fatty acids are different. Therefore, the nature and characteristics of fats mainly depend on fatty acids, and the types and amounts of fatty acids contained in fats in different foods are different.

There are more than 40 kinds of fatty acids in nature, so a variety of fatty acids can be formed, triglycerides, and the chemical changes of fat in the human body are mainly in lipase.

catalyze, it is hydrolyzed to produce glycerol (glycerol.

and higher fatty acids, which are then oxidatively decomposed separately to release energy. Oils also have the effect of maintaining body temperature and protecting internal organs. Oils and fats are widely distributed, and there are a certain amount of oils and fats in the seeds of various plants, animal tissues and organs, especially the seeds of oil crops and the adipose tissue under the skin of animals, which are rich in oil.

Fat in the human body makes up about 10% to 20% of body weight. They are a backup energy source for life-sustaining activities. When a person eats a small amount of food and the energy consumed by the food is not enough to pay for the energy consumed by the body, the body will consume fat to provide energy, and the person will be emaciated.

That is, the sebum secreted by the sebaceous glands is different from the fat content contained in the meat and various edible oils we eat, which is related to the metabolic status of our body to protect the moisturizers.

There should be a small amount of fat on the body, but not if it is oil on the face.

Not necessarily fat is just one type of fat.

A certain amount of oil is present in the seeds of various plants, in the tissues and organs of animals.

No, that fat is not the same as this.

No, it's just that the oil on your body is not fat.

No, there is a difference.

To put it this way, the oil discharged every day can be **.

Of course not, do you stir-fry vegetables with the oil that comes out of your body?

No, the properties and characteristics of oil and fat are different, generally the leaky car is called liquid at room temperature is called oil, and the solid at room temperature is called fat. The chemical elements contained in fats are mainly C, H, and O. Fats are soluble in most organic solvents, but not in water.

The difference between oil and fat is that the molecular length of the compounds that make up the oil and the connections between the molecules are comparatively smaller.

Precautions for eating oil:

1. Don't overdo it with vegetable oil when eating oil. This is because vegetable oil is an unsaturated fat, and if you eat too much at this time, it is easy to slowly form peroxide fat in the human body. So don't overdo it with vegetable oil when eating oil. Eat about 10 grams a day.

2. Don't eat too much olive oil when eating oil. This is because olive oil begins to swell when it encounters heat, so when stir-frying. If you use it slightly less than other oils, don't use too much.

3. Don't overheat the oil when eating oil. This is because excessive heating of oil consumption will cause the umami of stir-fried vegetables to be completely lost, and the nutrients will also be seriously lost. Therefore, when eating oil, do not overheat the oil.

Question 1: What is the difference between oil and fat, and is fat a fat? Oils and fats, as the name suggests, include oils and greases.

Oils and fats are actually glycerides of higher fatty acids, while oils refer to oils and fats in liquid state, such as soybean oil; Fat is a solid grease at room temperature, such as lard. Lipids, a kind of organic matter including fat, camellia, wax, steroids and triglycerides, cannot be dissolved in water, but can be soluble in ordinary organic solvents, feel greasy, and carbohydrates and proteins constitute the main structural components of life cells. Fats attack oily substances in humans and animals and plants, and are glycerides of one or more fatty acids C3H5 (OOCR)3.

Fats are oils and fats.

Question 2: Is the oil an ester Oils and fats are esters of glycerol and higher fatty acids. Of course, it belongs to the ester category, if there are many unsaturated components in the higher fatty acids, the melting point is low, and it is called oil, and the saturated higher fatty acids have many components and a high melting point, which is called fat, and oil is a general term for fat and oil.

Question 3: Fats Are fats the same as lipids? If not, what's the difference?

Oils and fats are esters formed by higher fatty acids and alcohols (as long as they are glycerol), and oils are divided into liquid oils (soybean oil, peanut oil) and solid fats (such as lard, butter); Oils are plant-based fats and fats are animal-based. Lipids are a big concept, a class of bioorganic molecules that are low in water and high in non-polar solvents. The range of lipids includes fats and fats, which in turn contain fats and oils; Lipids are divided into simple lipids (esters formed by fatty acids and alcohols, i.e. oils and waxes), complex lipids (phospholipids, glycolipids) and derived lipids (substituted hydrocarbons, sterols, terpenes, etc.).

Question 4: Is there fat in plants? Fats are solid, and what we usually call oils and fats in plants are called oils The glycerides of higher fatty acids that are liquid at room temperature are called oils, and the ones that are solid are called fats, and they are collectively called oils The more unsaturated bonds contained in the hydrocarbon base of the oil molecule, the lower the melting point The density of oils and fats is smaller than that of water and it is insoluble in water, so the answer is:

Oil; Fat; Low; Small; Nope

Question 5: Oils and fats are both esters Right, oils and fats are widely distributed, and there is a certain amount of oil in the seeds of various plants and the organs of animals.

And the oil in the plant body is called vegetable oil.

It contains more unsaturated carbon-carbon double bonds, which makes it appear liquid.

The fats in animals, which we call fats, have almost no double bonds, so they are solid.

I think you're right, because vegetable oils and fats are collectively called fats.

And the dip and fat all contain ester groups, which are functional groups that belong to the ester group.

Therefore, fats and fats are also called higher fatty acid glycerides.

Got it?

The oiliness on the face is due to the action of the sebaceous glands. The sebaceous glands mainly have the effect of moisturizing ** and hair to prevent **dryness. If the sebaceous gland secretion function is normal and the sebum secretion is moderate, the sebum will diffuse in the epidermis, which will become smooth, shiny, and soft, and can also prevent water evaporation.

The sebaceous glands contain fatty acids, which make ** acidic and have a bactericidal effect.

The normal development and maintenance of the sebaceous glands is necessary for homeostasis, and when it shrinks and the sebaceous lipid composition is destroyed, it will bring about certain dysfunction. Factors affecting the secretion function of sebaceous glands include: gender, age, endocrine factors, humidity, diet and nutrition, etc.