The seventh grade second volume biological human nutrition unit examination questions.
First, multiple choice questions
The title is12345678 91012131415.
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1. Children suffering from rickets are mainly due to lack of food ()
A. inorganic salts containing calcium B. inorganic salts containing phosphorus C. inorganic salts containing iron D. inorganic salts containing zinc
Xiaogang has a bad cold. He has had a fever for almost a week and his weight has dropped significantly. Excuse me, the largest amount of organic matter consumed in his body is ()
A. sugar b protein c fat d water
Some people never eat animal food such as animal liver, but they like vegetables very much. These people may not suffer from night blindness. This is because some vegetables contain ()
A. vitamin A B. vitamin B C. vitamin C D. carotene
4. The nutrient that neither participates in the formation of human cells nor provides energy for the human body is ()
A. protein B. Water C. Vitamin D. Sugar
5. The best food to prevent rickets and night blindness is ().
A. milk b pig liver c carrot d orange
6. Teenagers need more protein than adults every day, mainly because ().
A. a lot of activity and energy consumption. Teenagers eat a lot.
C. get the necessary vitamin D. The need of growth and development
7. Endemic goiter is caused by the lack of inorganic salts in food ()
A. inorganic salts containing calcium B. inorganic salts containing iron C. inorganic salts containing iodine D. inorganic salts containing zinc
8. Milk can promote the growth of the body and enhance physical fitness, so teenagers should drink some milk every day because it contains more ().
A. protein and sugar B. Vitamin A and calcium C. protein and calcium D. Vitamin A and sugar.
9. In our daily food, the group that mainly contains protein is ().
A. vegetables, eggs and lean meat B. fish, beef and soybeans
C. potatoes, peanuts and glutinous rice D. cream, corn and milk
10. The main function of sugar in the nutrients contained in food is ()
A. The main components of cells B. Regulating metabolism
C. provide energy for human life activities D. store energy for human body.
1 1. We mainly drink milk, eat steamed bread and lean meat to provide energy for the human body ().
A. protein, sugar and protein B. Water, inorganic salts and vitamins
C. sugar, fat and vitamin d
12. Teenagers who are growing and developing need () every day.
A. Foods rich in sugar B. Foods rich in vitamins
C. Foods rich in calcium and phosphorus
13. Among the nutritional components of food, it is not only the basic substance of human body, but also one of the energy substances, and it is also the main regulating substance of cells and human metabolic activities.
A. sugar b, protein c, fat d, vitamins
14. A classmate measured the energy in peanut seeds. The data of two repeated experiments were 1244 kJ, 1249 kJ and 1248 kJ respectively, so the energy contained in this peanut seed is ().
a . 1249 kJ b . 1244 kJ c . 1247 kJ d . 1248 kJ
15. In order to compare the content of vitamin C in vegetables, Xiao Qiang added 2ml of potassium permanganate solution with the same concentration into four test tubes of the same size, and then dripped the vegetable juices of cucumber, green pepper, celery and Chinese cabbage with the same caliber to make the potassium permanganate solution fade. The results are as follows:
Cucumber Juice and Green Pepper Juice celery juice chinese cabbage juice
Potassium permanganate solution (2ml) 14 drops, 8 drops 15 drops 1 1 drop.
Excuse me, the vegetable with the most vitamin C content is ()
A. cucumber b green pepper c celery d Chinese cabbage
16. Among the following diseases, the disease caused by vitamin A deficiency is ()
A. Neuritis and beriberi B. Dyspepsia and loss of appetite
C. decreased resistance is easy to catch a cold D. dry skin and dry eyes.
17. Eating more vegetables in the diet is advocated in order to provide () for life activities.
1 sugar 2 protein 3 vitamins 4 inorganic salts 6 fat 6 water 6 dietary fiber.
A.①②③ B.③④⑦ C.④⑥⑦ D.②③⑤
18. In the adipose tissue cells of obese people, the most organic matter is ().
A. water b protein c fat d sugar
19. The statement about the meaning of water to human body is incorrect ().
① Nutrients must be dissolved in water ② Various reactions in cells can be carried out without water ③ Water can send nutrients to all cells ④ Metabolic wastes of cells are dissolved in water and discharged out of the body ⑤ Water is not the main component of cells.
A.①③ B.②④ C.①③④ D.②⑤
20. Due to partial eclipse, the child's skin is rough and blood vessels under the skin bleed, which is due to the lack of () in his body.
① vitamin A ② vitamin B 1 ③ vitamin C ④ vitamin d
A.①③ B.①④ C.②③ D.②④
2 1, the following nutrients, can provide energy for human life activities is ().
① Sugar ② Fat ③ protein ④ Water ④ Inorganic salt.
a、①③⑤ B、①②④ C、①②③ D、①②⑤
22, which group of digestive juice can digest both starch and fat ()?
A, saliva and gastric juice b, saliva and intestinal juice c, intestinal juice and bile d, intestinal juice and pancreatic juice.
23. There is some vegetable oil in the test tube. Add the prepared digestive juice, shake well and put it in warm water at 37 degrees Celsius. After an hour, the vegetable oil disappeared. The prepared digestive juice may be ()
A, saliva, gastric juice, intestinal juice B, gastric juice, saliva, bile
C, pancreatic juice, intestinal juice, bile D, intestinal juice, saliva, pancreatic juice
24. Which of the following is the basic substance that constitutes human cells and the main substance that provides energy for life activities? ( )
A, protein, fat b, protein, sugar c, sugar, protein d, vitamins and fat.
25. When the bile secretion in the body is insufficient, which of the following substances will be mainly affected? ( )
A, tofu b, rice c, fat d and lean meat.
26. The digestive juice that can digest starch, protein and fat is ().
A. Intestinal fluid B. Saliva C. Gastric juice D. Bile
27. Kobayashi found that gums often bleed when brushing their teeth these days. He should be advised to eat more.
A, rice, steamed bread b, fish, meat, milk, eggs c, fresh vegetables, fruit d, cream and chocolate.
28. Xiaogang had a bad cold and fever for a week, and his weight dropped significantly. The main reason for his weight loss is the consumption of which of the following organic substances? ( )
A, sugar b, protein c, fat d and water.
Pharmaceutical factories often put some drugs in capsules made of starch for people to take. According to analysis, the principle of starch digestion in the digestive tract is ()
A, packed in starch capsules, the medicine needs to ooze out slowly. B, the stomach can't digest starch, and capsules can enter the small intestine through the stomach.
C, bile can't digest starch D, starch is preliminarily digested in the mouth, which is easy to swallow.
30. There is a family of five people. Three people have rough skin and can't see clearly at night. Their food may lack ()
A, vitamin A B, vitamin B C, vitamin C D, vitamin d.
Second, non-multiple choice questions
3 1.(20 10? Yichun) Now, some students often go to school without breakfast. On the morning of the third and fourth day, these students often feel dizzy, flustered and inattentive. This will not only affect the learning effect, but also affect the health. The following are reasonable breakfast recipes: a piece of bread, an egg, a glass of fresh milk and a small amount of fruits and vegetables. Please analyze and answer:
(1) The main component of bread is starch, which was first digested.
(2) The nutrient that can be absorbed directly without digestion in breakfast is ().
A. starch, protein and fat B. water, inorganic salts and vitamins.
(3) Teenagers grow and develop rapidly. Nutrition experts suggest that teenagers should eat more foods rich in protein, such as milk, eggs, fish and meat. Because protein is a human body ()
A. Main raw materials for cell growth and tissue regeneration B. Main energy-supplying substances
(4) Why are the above breakfast recipes reasonable?
32.(20 1 1? Laiwu)? Comprehensive, balanced and appropriate? Cultivate healthy eating behavior? Is the theme of this year's China Student Nutrition Day. Reasonable and healthy eating habits are conducive to improving the quality of life. What do nutritionists provide? Diet pagoda? The intake of Chinese food (as shown in the following table), please analyze and answer:
(1) A classmate's gums often bleed, which may be due to insufficient food intake on the first floor.
(2) protein is the basic substance of human cells, which is mainly obtained from the first layer of food; Protein ingested by human body
It is first digested in milk, and then finally decomposed into amino acids and absorbed in milk.
(3) Cereal food mainly provides us with similar substances. After being digested and absorbed, these substances need to pass through the heart to reach the tissues and cells, and are decomposed under the action of oxygen to provide the needs for life activities.
(4) Middle school students are in a critical period of growth and development, so it is particularly important to maintain reasonable nutrition every day. How do you think to achieve a healthy diet? ______________________________________________
33.(20 1 1? Jiyuan) helps people design a healthy diet plan. Nutritionists divide foods into five categories and advocate a reasonable diet. The chart below shows the proportion of various foods that nutritionists in China suggest residents eat three times a day. Please answer the questions according to the picture.
(1) In our daily intake of food, V accounts for the largest proportion, because V contains the most important energy-supplying substance for human body.
(2) 19 13, Russia? St. Hook? Some crew members got sick during the voyage. Their gums are swollen and easy to bleed. Food on the way (fill in the label) can cure the disease.
(3) Growing teenagers should eat more foods rich in protein, calcium and phosphorus. Please choose the right food from the picture.
34. The following table shows five grades designed by nutritionists in China according to daily food intake? Balanced diet pagoda? , please analyze and answer: (6 points)
Are you online? Diet pagoda? Position in food classification Daily intake
Grade ⅴ grease is less than 25 g.
ⅳ beans and milk100-150g
Grade III [Source: Science, Family and Internet] Fish, poultry, meat and eggs 125-200 g.
400-750g of secondary fruits and vegetables.
450-500g of first-class grain.
(1) The main energy-supplying substance for human life activities comes from _ _ _ _ _ _ (fill in serial number) food. In the digestive tract, the site where the main energy-supplying substances are finally digested is _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.
(2) Adolescents in the developmental stage should eat more foods of Grade III and IV in the table, because these foods contain _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.
(3) Secondary spinach and tertiary animal livers are rich in iron. If the iron intake in the diet is insufficient, sometimes the blood can't carry the normal amount of oxygen, causing dizziness. This is because iron is an important raw material for the synthesis of _ _ _ _ _ _ _ _.
35. Read the following article and answer the questions:
Material 1: Long ago, doctors in ancient Greece, Rome and Arabia used animal liver to treat night blindness, which is what we often say? Sparrows? . Sun Simiao, a famous doctor in ancient China, also proposed to treat this disease with pig liver in his medical books. He also suggested that Cooper's skin porridge could be prevented? Rice eating area disease? , which is now beriberi.
Material 2: 1947, Portuguese navigator da? Gamma, during the voyage to India through the Cape of Good Hope, 160 sailors died of scurvy. But later, the crew learned that eating some fruits or vegetables, even wild fruits or wild vegetables, can cure diseases.
(1) It can be seen from the first material that animal liver contains it, so it can treat night blindness. The seed coat of grain contains it, so it can treat beriberi.
(2) As can be seen from the second material, it is contained in fruits or vegetables, which can prevent scurvy. Spinach, leek and pumpkin in vegetables can prevent night blindness, because these plant foods are rich in it and can be converted into.
(3) In short, from the above data, we can see that the main effect on human body is irreplaceable by other nutrients.
,,,, are the main organic substances that make up cells and can provide energy for life activities.
36. In order to explore the influence of protein in food on the growth and development of animals, a research group conducted an experiment: 40 young rats were divided into two groups: group A was fed with sugar (starch), fat, inorganic salts and water, while group B was fed with food and milk from group A. The following figure shows the experimental results within 40 days. Try to analyze and answer:
(1) The hypothesis tested in this experiment is.
(2) The reason why young rats are used to do experiments instead of adult rats is that
Because.
(3) Each group used 20 rats instead of one young rat for the experiment, because:
(4) The data in scientific inquiry often exist, so it is necessary to assume that the same experiment will be repeated many times under the same conditions, and the experimental results should take the values of many experiments.
The seventh grade, the second volume of the biological human nutrition unit test paper reference answer.
First, multiple-choice questions (2 points for each small question, ***60 points)
The title is12345678 91012131415.
Answer aa, a, a, b, c, c, c, c, c, c, c, c, c, c, c, c, c, c, c, c, c, c, c, c, c, c, c, c, c, c, c, c, c, c, c, c, c, c, c, c, c. C B C C B C B C B C C B C C B C C B C C B C C B C C B C C B C C B C B C B C C B C B C B C C B C C B C B C C B C C B C C C B C C B C C C B C C C C B C C C C B C B C C C B C C B C C B C C B C C C B C C C C c b b c b c b c b c b c b c b c b c b c b c b c b c b c b c b c b c b c b c b c c b c b c b c b c c b c b c b c c b c b c b c c b c b c c b c c b c c b c b c c b c b c c b c c b c b c c b c c b c c b c c b c c b c c b c c b c c c b c c b c b c c b c c b c c c b c c b c c c c b c c b c c c b c c c b c c c c b c c c b c c c c b c c b c c c b c c c c c b c
Title16171819 202122 23 24 25 26 27 28 29 30
The answer is d b b d c d c c b c b c b c b b b b b b b b b b b b b b b a b b a b b a b b a b b a b b a b a b a b b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b a b
Second, multiple-choice questions (***40 points)
Answer: (1) Oral cavity (2)B (3)A (4) Balanced diet (or balanced diet)
32. Answer: (1) two (2) three or four stomachs and small intestines (3) sugar and two energies (4) regular and quantitative, reasonable diet, no picky eaters, no partial eclipse, etc.
Answer: (1) sugar (2) four (3) two three.
34.(6 points) (1) I intestinal juice and pancreatic juice (2) protein (3) hemoglobin.
Combine with oxygen where the oxygen concentration is high and separate from oxygen where the oxygen concentration is low.
35.(9 points) (1) vitamin A, vitamin B 1 (2) vitamin C, carotene and vitamin A.
(3) Vitamin sugar and protein fat.
36.(6 points) (1) protein (or milk) has influence on the growth and development of rats.
(2) Young rats grow and develop rapidly.
(3) Large samples make the experimental results more reliable. At the same time, if only one mouse is used for the experiment, once the mouse has an accident, it will make the experiment unable to continue. (A reasonable description is enough)
(4) Average value of error repetition group