What is life sustaining energy?

The role of energy in life-sustaining activities is embodied in the following aspects. Energy consumption of basal metabolism: basal metabolism refers to the minimum energy to maintain life, the amount of consumption, that is, the energy consumption of the human body in quiet and constant temperature conditions after fasting for 12 hours, lying still, relaxed and awake, at this time the energy is only used for maintenance, holding the basic energy such as heart beating, lung respiration, body temperature, blood circulation and gland secretion, the amount of energy needed, this part of the energy consumption accounts for 60% 70% of the energy consumption throughout the day.

Energy expenditure of physical activity: It is the main factor affecting the energy consumption of the human body, of which muscle activity accounts for a large proportion, the amount of energy consumption of physical activity depends on the content of the activity, the intensity of the activity and the duration of the activity, etc., usually all kinds of physical strength, the energy consumed by the activity accounts for 15% of the total energy consumption of the human body 30%.

Food thermal effect: In the process of ingesting, the human body needs to consume additional energy when digesting, absorbing, metabolizing, and transforming nutrients in food, and at the same time cause body temperature to rise, high and emit energy. The caloric effect of food varies depending on the composition of the food, with the caloric effect of fat being consumed by 4% to 5% of the energy itself, 5% to 6% of carbohydrates, and up to 30% to protein.

The caloric effect of mixed foods is generally equivalent to 10% of basal metabolism. Energy expenditure for growth and development: For infants, infants, children, and adolescents in the process of growth and development, the daily energy consumption also includes the energy required for growth and development.

In adulthood, people may also have similar conditions, such as maternal tissue growth, development, and body fat reserves in pregnant women, as well as energy required for fetal growth and development; Lactating mothers synthesize milk, energy required for lactation, etc. In addition to the above-mentioned energy expenditure factors, mood and mental state can also affect energy expenditure. The weight of the brain accounts for only 2% of body weight, but the metabolic level of brain tissue is very high, such as working nervously, it can intensify the activity of the brain, and the amount of metabolism can increase by 3% 4%, but compared with physical activity, the consumption of mental work is still relatively small.

In the medical theory of energy medicine, living organisms are not centered on "matter", but on "energy". Because living organisms are made up of the most basic cells. The energy generated by the opening and closing movement of cells, and the stronger the energy, the more active the cells, the natural vitality of the living body, and the attenuation of cellular energy will reduce the vitality of the life, the immunity and natural ** force of the living body will be reduced, and the incidence of disease will increase.

As far as the theory of traditional Chinese medicine is concerned, "qi, blood, and water" are the basic substances that maintain the vital activities of the human body. The "qi" here is the "energy" referred to by modern energy medicine, which is the energy to maintain life activities, which can effectively strengthen cell activities, enhance natural strength, and is the key to strengthening the body's immunity.

Protein: It is the bearer of various life activities, and the decomposition of protein is amino acids, and amino acids can provide very little energy sugar = carbohydrates: the main energy supply substance of the human body: fat:

The main energy storage substance of the human body, sugar and fat can be converted into each other, but sugar is easy to convert into fat, and fat is difficult to convert into sugar, which is the reason why it is easy to get fat but difficult to **, calorie is a unit of energy, but generally used kilocalories (also called kcal), energy is obtained from sugar decomposition, and if the sugar (blood sugar) in the blood is low, you can decompose fat to get sugar to maintain life activities need a lot of things, sugar, inorganic salts, and so on. If you want to replenish energy quickly, eat sugar, and to gain weight, you also eat more sugar or fattened lipids.

Energy refers to the thermal energy required by the human body to sustain life activities. The body needs all the energy it needs from heat-producing nutrients, namely proteins, fats, and carbohydrates. The human body obtains energy from food and uses it for various life activities, such as the activity of internal organs, the contraction of muscles, the maintenance of body temperature, and growth and development.

The energy expenditure to maintain the basic life activities of the human body is the energy consumed by basal metabolism, physical activities, and the special dynamic effect of food. Basal metabolism: that is, the energy required to maintain basic life activities, this energy is generally measured after waking up in the morning, the most accurate, the energy consumed by physical activity:

That is, the energy required for human activities, work, sports, etc.

The special power function of food: that is, when eating, you need to consume calories, depending on the food you eat, such as the intake of protein foods, fats or carbohydrates, there will be energy consumption.

The amount of energy required by the human body

Energy is not a nutrient, but it is the basis for human beings to survive and thrive and engage in various activities. Energy intake should be balanced with needs. Insufficient energy intake, the body will use its own energy reserves and even consume its own tissues to meet the energy needs of life activities, resulting in energy deficiency symptoms such as decreased physical strength, weight loss, stunting, and death.

Excess energy intake, excess energy is stored in the form of fat, leading to obesity. Energy requirement is a prerequisite for determining the nutrient requirement for energy capacity. Energy is not a nutrient, but it is the basis for human beings to survive and develop and engage in various activities.

Energy intake should be balanced with needs.

Insufficient energy intake, the body will use its own energy reserves and even consume its own tissues to meet the energy needs of life activities, resulting in energy deficiency symptoms such as decreased physical strength, weight loss, stunting, and death. Excess energy intake, excess energy is stored in the form of fat, leading to obesity. Energy requirement is a prerequisite for determining the nutrient requirement for energy capacity.

The energy expenditure to maintain the basic life activities of the human body is basal metabolism. The energy expenditure of basal metabolism constitutes an important part of the body's energy expenditure, which is an important basis for studying the body's energy expenditure and energy needs. Basal metabolism refers to the minimum energy requirement of all organs in the body to sustain life.

The human body is in a state of being awake and quiet at a room temperature of 18-25 on an empty stomach, lying flat, and awake, quiet, and discreet. At this time, the minimum energy metabolism necessary to maintain basic life activities such as heartbeat and breathing is called basal metabolism.

The method is to measure the energy metabolism rate of the human body in a state of awakening, slow travel and extreme quietness, which is not affected by muscle activity, ambient temperature, food and mental stress.

The values of basal metabolism are related to gender, age, height, weight, and health status. The basal metabolic rate of normal people is relatively constant, generally slightly higher than that of women, higher than that of children and young adults, and gradually decreases in adulthood.

The energy expenditure to maintain the basic life activities of the human body is () Qingyu.

a.Physical strength shouts that rock activity consumes energy.

b.Basal metabolism.

c.Hidden effect of heat seepage in food.

d.Non-physical activity.

Correct answer: B

Sugars are an important class of organic compounds that are widely distributed in nature. Sucrose for daily consumption, starch in grains, cellulose in plants, and glucose in human blood are all sugars. Sugars play an important role in the process of life activities, and they are the main source of energy required by all living organisms to maintain life activities.

The most important sugars in plants are starch and cellulose, and the most important polysaccharides in animal cells are glycogen.

Sugars mainly include starch without sweet taste and maltose with sweet taste, which is the most important energy substance in the human body and plays an important role in the human body. As a bioenergy source, e.g. muscle contraction, nerve conduction. as a carbon source for the biosynthesis of other substances.

As a structural substance of living organisms. Glycoproteins, glycolipids, etc. have a variety of physiological activity functions such as cell recognition and immune activity.

Types of vitamins, their role and **.