What is incorrect in the relevant narrative about nutrients is:

A When the nutrient is changed to excessive intake, it must make people fat.

b When nutrients are consumed excessively, they must be discharged.

c When the intake of nutrients is excessive, the oxidative decomposition is strengthened, and more energy is released.

d In the human body, essential amino acids can be used to synthesize non-essential amino acids (correct answer).

Solution: a Polymer compound refers to a compound with a relative molecular mass of more than 10,000;

b The characteristic reaction of starch is that it turns blue when exposed to iodine;

c. Fats and fats include vegetable oils and animal oils;

d Analysis from the point of view of the composition of matter

a Polymer compound refers to a compound with a relative molecular mass of more than 10,000, and glucose is a small molecule compound, so a is wrong;

b The characteristic reaction of the destroyed powder is that it turns blue when exposed to iodine, so b is correct;

c Oils and fats include vegetable lead and animal oil, vegetable oil is liquid at room temperature, and animal oil is solid at room temperature, so C is false;

d greens and cucumbers contain a lot of cellulose, so d is wrong

Therefore, choose b Comments:

Test points for this question: the properties and uses of starch; the properties, composition and structure of oils and fats; Properties and uses of cellulose

Test Center Comments: This question examines the properties and applications of common basic nutrients, the question is not difficult, pay attention to the definition of polymer compounds and the characteristic reaction of light powder

Answer] :d a more accurate and complete definition of "nutrition": the body through the ingestion of food, digestion, absorption and metabolism in the body, the use of food substances that are beneficial to the body as a biological process to build body tissues and organs, meet the physiological functions and physical activity needs of spring.

The following description of the nutritional value of food is incorrect ()aNutritional value is relative.

b.A variety of foods is needed to meet the nutritional needs of the human body.

c.No such thing as perfect whole food.

d.Eggs have a higher nutritional value than citrus.

Correct Answer: Eggs are more nutritious than citrus.

Answer] There are 7 main categories of :d nutrients: proteins, lipids, sugars, vitamins, inorganic salts, water, and dietary fiber. Therefore, choose D.

Vitamins, sugars, fats, water, proteins, inorganic salts and dietary fiber are commonly referred to as nutrients. Together with the oxygen that enters the cells during respiration, they undergo metabolism and are eventually converted into energy for life-sustaining activities.

Nutrition is an indispensable element in the material composition and physiological functions of life, and it is also the basis for the activities of living organisms.

When the cells of the human body are removed from the body and placed in a test tube, it is found that they are composed of water, hydroxides, and salts.

Proteins are made up of amino acids, while sugars are made up of monosaccharides, and fats are made up of glycerol and fatty acids.