Name class score

First, multiple-choice questions (65438+ 0.5 points per question, ***60 points)

1. The propagation mode of the following plants is not asexual: ()

A. The leaves of Zanthoxylum bungeanum can sprout, take root and grow into new plants. Corn seeds can germinate and grow into new plants.

C. Potato tubers can germinate in bud eyes and grow into new plants. Wicker can take root and grow into new plants after being inserted into the soil.

2. Women are carriers of albino genes (Aa), and the cells that may not contain pathogenic genes are: ()

A. muscle cells B. nerve cells C. egg cells D. oral epithelial cells

3. Compared with human oral epithelial cells, the inner epidermal cells of onion scales observed in our laboratory have a unique structure of ().

A. Cell membrane and vacuole B. Chloroplast and vacuole C. Cell wall and chloroplast D. Cell wall and vacuole

4. Figure 1 is the carbon cycle diagram in the ecosystem. A, b and c represent different biota respectively. The following statement is true ()

A. A is the producer, B is the consumer and C is the decomposer.

B. A is the producer, B is the decomposer and C is the consumer.

C. A is the decomposer, B is the consumer and C is the producer.

D. A is the decomposer, B is the producer and C is the consumer.

5. The four pictures in Figure 2 belong to animal community behavior ()

A. Color blindness B. Hemophilia C. AIDS D. Albinism

A B C D

6. A junior high school student has the flu recently. He found a bottle of cold medicine at home. He read the label on the medicine bottle (as shown in table 1) and thought that this medicine was not suitable for taking. The most likely reason is ()

A.this medicine is not symptomatic

B.the side effects of drugs are too great.

C.this medicine has expired.

D. you can't take it without a doctor's advice

7. In June 2007, Hulunbeier Municipal Government held a "Car Rally". Most of the nearly 2000 km races were held in the hinterland of grassland, and the grassland was "scarred" after the car race. From the perspective of sustainable development, your evaluation of this activity is ()

A. it promotes local opening to the outside world. B. The popularity of Hulunbeier grassland has been improved.

C. increased the economic benefits of Hulunbeier. D. destroyed the ecological environment of grassland.

8. In the following plant groups, it is () that breeds offspring with seeds.

A. Metasequoia, Selaginella, Pumpkin and Kelp

9. The researchers used three sheep, A, B and C, to clone sheep. Among them, sheep A provides enucleated egg cells, sheep B provides the nucleus of mammary cells, and sheep C provides the place for embryo development. The cloned sheep cultivated in this way is ().

A. similar to sheep a.

C. it's similar to C. D. it's not like any of the three sheep.

10. Figure 3 is a schematic diagram of classification levels. The following understanding is correct.

A. The largest taxon in the diagram is genus.

B.wolves and dogs are the least alike.

C. cats and tigers belong to cats.

D. tigers have nothing to do with dogs.

1 1. Among the following options, the rare mammal belonging to China is ().

A. Giant panda alligator baiji B. Green turtle Tibetan antelope golden monkey

C. giant salamander, northeast tiger, Chinese sturgeon, baiji dolphin, golden monkey and giant panda

12. As shown in Figure 4, the shaded part indicates the * * * same characteristics of four plants, which is ().

A. there are seeds. Roots and leaves are differentiated

C. the seed coat has no pericarp D. Seeds are coated with pericarp.

13. When blood flows through blood vessels of lung hair cells, () blood becomes () blood. ( )

A. vein b, vein artery c, artery d, vein

14. The starting point of advocating "no disposable wooden chopsticks", "saving every piece of paper" and "reducing the use of greeting cards" is ()

A. Reduce personal expenses B. Save wood and protect forests

C. Reduce solid waste D. Change customs.

15. Australian scientist Barry? Marshall and Robin? Warren, who discovered that Helicobacter pylori is the pathogen causing gastritis and gastric ulcer, won the 2005 Nobel Prize in Physiology or Medicine. About this pathogen, it is not correct ()

A. Split propagation, rapid propagation B. Protective and supportive cell walls

C. it has a nucleus and no chloroplast. D. it is a single-celled organism with tiny individuals.

16. Suppose Vibrio cholerae divides every 30 minutes, and after 4 hours, the total number of bacteria obtained by dividing 10 bacteria is ().

A. 160。

17. Scientists have studied the reasons why some birds are endangered or threatened. The results are shown in Table 3:

Reasons such as poaching, habitat loss and the influence of exotic species.

Proportion 20% 60% 12% 8%

As can be seen from the above results, the most effective measure to protect birds is ()

A. vigorously carry out bird-loving week activities and strengthen bird-loving publicity. B. prohibit poaching.

C. Controlling the introduction of exotic species D. Establishing nature reserves

18. Zhang Ming wants to explore "seed germination needs water". When designing the control experiment, the two groups of experiments are the same except one condition. The different conditions are ()

A.a uses 20 seeds and b uses 10 seeds. B.A. Use full seeds, and B. Use relatively dry seeds.

C.a is always wet and B is always dry. D. A uses wheat seeds and b uses corn seeds.

19. Xiao Ming found several Mrs. Rats while watering the flowers on campus. He and his classmates became interested in the living environment of the mouse wife, so they went to find and explore together, and recorded the data of finding the mouse wife in the following table: According to the data they recorded, we can know that the environmental condition suitable for the mouse wife's survival is ().

The wet flowerpot with flowers planted under the stone beside the pool beside the cement road is under the hay field.

The number of rat girls is only 0 24 20 2.

A. sunny B. dark and humid C. fresh air D. high temperature drying

20. As the saying goes, "Life lies in exercise". Human movement needs energy, and energy ultimately comes from the fixed solar energy of plant cells. ( )

A. chloroplast B nucleus C mitochondria D cell membrane

2 1. The formation of the organization is the result of _ _ _ _ _ _ _. ( )

A. Cell division, B cell growth, C cell differentiation and D cell reproduction

22. According to the survey, urban ecosystem types include forest ecosystem, lake ecosystem, farmland ecosystem and garden ecosystem, among which the ecosystem with the least biological species is ().

A. Forest ecosystem B. Lake ecosystem C. Farmland ecosystem D. Garden ecosystem

23. Farmers take the following measures to increase the yield of crops, but the principle of photosynthesis is ()

A. applying farmyard manure B. timely sowing C. timely loosening soil D. reasonable close planting

24. In the late growth stage of wheat (filling stage and mature stage), the products of photosynthesis are mainly used for the normal biology and development of grains, and the water absorbed by wheat during this period is mainly used for ().

A. photosynthesis B. respiration C. transpiration D. accumulation of organic matter

25. Some children often take calcium tablets, but they still show symptoms of calcium deficiency. The most likely reason is ()

A. Lack of vitamin A B. Lack of vitamin C C. Lack of vitamin D. Lack of protein

It is reported that scientists have invented a colorless and transparent plastic, low viscosity wax and other substances. When transplanting plants, if sprayed on the leaves, a film can be formed through which carbon dioxide can pass but water can not easily pass, which can greatly improve the survival rate of plants. This is mainly because of the movie ()

A. Enhance photosynthesis of plants B. Enhance transpiration of plants.

C. reduce transpiration of plants.

27. A group of diseases caused by abnormal hormone secretion is ()

A. Diabetes and rickets

C. Diabetes and gigantism D. Big neck disease and beriberi

28. Fried dough sticks are one of our common breakfast foods. Its production needs flour and peanut oil. Can you tell me where they are from ()?

A. cotyledons of wheat and peanut B. endosperm of wheat and cotyledons of peanut

C. endosperm of wheat and peanut cotyledons

Laiwu is an important producing area of ginger and garlic, in which ginger should be stored in a "ginger well". If the "ginger well" for storing ginger is not opened for a long time, taking ginger may be life-threatening. What is the reason? ( )

A. Ginger consumes oxygen through breathing. B. Ginger consumes carbon dioxide through photosynthesis.

C. the carbon dioxide produced by ginger breathing is toxic. D. The respiration of ginger absorbs carbon dioxide.

30. Acrobats walking a tightrope, the nervous system plays a major role is ().

A. Cerebellum B. Brain C. Brain stem D. Spinal cord

3 1. Transplanted organs are usually difficult to survive. According to the principle of immunology, the transplanted organ is equivalent to ().

A. Antigen B. Antibody C. Vaccine D. Toxic substances

32. The following organisms have no cell structure ().

A. paramecium B. bacteria C. yeast D. tobacco mosaic virus

33. The composition of human egg chromosome is ().

A.44+XX B.44+XY C.22+X D.22+Y

34. Among the following character pairs, () is a relative character.

A. Long hair and black hair of dogs B. Height and weight of human body

C. palm leaves and chicken feet leaves of cotton D. tall stems of peas and short stems of broad beans

35.200 1 year, scientists have cultivated "super mice". Their muscle mass is four times higher than that of flexible mice, and their life span is longer because they have a special gene in their bodies. The way scientists got this super mouse belongs to ()

A. Fermentation technology B. Cloning technology C. Tissue culture D. Transgenic technology

36. In the process of cultivating 2 kilograms of soybeans into 5 kilograms of soybean sprouts (young leaves don't grow), the change of organic matter in soybeans is ()

A. decrease B. increase C. increase first, then decrease D. no increase, no decrease

37. The so-called "new plant larvae" refers to ()

A. embryo B. endosperm C. cotyledon D. hypocotyl

38. The health authorities in China rank the causes of death of residents in big cities in proportion. The top three diseases are cancer, cerebrovascular disease and heart disease, all of which are caused by unhealthy lifestyles. Which of the following lifestyles is not a bad lifestyle ()?

A. smoking and drinking. B. Love barbecue and fried food. C. mix meat and vegetables and balance nutrition. D. stay up late without exercise.

During the epidemic of influenza, many students in the class fell ill. In order to prevent other students from being infected, the teacher disinfects the classroom with disinfectant every day, which is one of the measures to prevent infection ().

A. control the source of infection B. cut off the route of transmission C. protect the susceptible population D. none of the above.

40. A classmate got acute appendicitis and went to the hospital for blood routine. The test result will be higher than the normal value ().

A. Red blood cells B. White blood cells C. Platelets D. Plasma

First, multiple-choice questions: answer sheet

1 2 3 4 5 6 7 8 9 10

1 1 12 13 14 15 16 17 18 19 20

2 1 22 23 24 25 26 27 28 29 30

3 1 32 33 34 35 36 37 38 39 40

Second, short answer questions (65438+ 0 points per grid, ***40 points. )

4 1.(4 points) The following picture shows the reflection of the driver when he stops at a red light.

Please analyze according to the chart:

(1). The order of the reflected light of "red light" entering the driver's eyeball for imaging is ().

① cornea ② lens ③ retina ④ pupil ⑤ vitreous body.

A.①②③④⑤ B. ①④②⑤③

C.②③①⑤④ D. ⑤④③②①

(2) In the eyeball structure, the stimulation of red light can be transformed into nerve impulses.

(3). Which of the following reflections belongs to the same class as the above reflection? ( )

A. Blinking reflex B. Urinating reflex

C. Hand-shrinking reflex D. Looking at plums to quench thirst

(4) What human systems do you think drivers need from seeing a red light to stopping? (Write at least two systems)

42.(4 points) As shown in Figure 5, it is a partial structural diagram of angiosperm tomato flower. Please answer according to the picture:

(1) Tomatoes generally use seeds to reproduce their offspring, which belongs to reproduction.

(2) ①, ② and ③ together belong to the main part of the flower.

(3) After fertilization, the seeds shown in (4) continue to develop into seeds.

(4) In order to solve the problem of frost resistance of tomatoes, scientists transferred the antifreeze protein gene of flounder into tomatoes and cultivated frost-resistant tomato plants. This technology is called technology.

43.(7 points) Some students bought bananas in the supermarket and found that some bananas were green and some bananas were yellow; Raw bananas taste terrible, while Huang Xiangjiao is soft. This phenomenon aroused his desire to explore. Here are some details of his exploration. Please answer with what you have learned:

(1) He divided the green bananas he bought into two equal parts, A and B. Group A was put in an environment of 25℃ and Group B was put in a refrigerator of 7℃. After three days of observation, group A turned yellow, while group B did not. After the banana peel is peeled off, group A is softer and group B is harder. The experimental results show that the color change of banana is related to the ripening process. The purpose of setting up group B is to set up experiments.

⑵ In order to verify the taste changes of bananas during ripening, he added four drops of iodine to peeled green bananas and yellow bananas at the same position. Results The color of green banana changed deeply, while that of Huang Xiangjiao changed lightly, indicating that green banana contains more components than Huang Xiangjiao, so it is not as sweet as Huang Xiangjiao.

⑶ From the structural level, banana pulp belongs to tissue.

(4) Out of interest, he took some pulp to make a temporary film and observed it under a microscope. As a result, he saw a relatively complete cell in the upper right of his field of vision. If you want to move this unit to the center of the field of view, the film should be loaded into the.

Move it. The biggest difference between banana pulp cells and human oral epithelial cells is that bananas are. Huang Xiangjiao's sweet substances exist in cells.

44.(4 points) White and brown of cotton are a pair of relative characters. If B is used to indicate the genes controlling dominant traits and B is used to indicate the genes controlling recessive traits, please answer the following questions according to Table 4:

parental generation

filial generation

White × white, white and brown

(1) White and brown of cotton are a pair of relative characters, and it can be judged that _ _ _ _ is a dominant character from the genetic results shown in the table.

(2) The color of the parent cotton is white, while the color of the offspring cotton is brown, which is called _ _ in genetics.

(3) Try to write that the most likely genome of the parent white cotton in the table is _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.

45.(4 points) Temperature has a great influence on the preservation of vegetables. Students in a biological activity group bought some fresh vegetables in the market, explored the suitable temperature for vegetable preservation, divided them into three equal parts on average, and put them in plastic bags numbered 1, 2 and 3 respectively, and made the following experiments. The experimental results are recorded in Table 5:

figure

Temperature time result

Freeze-rot at 1-5℃ for 48 hours.

48h at 25℃ is basically the same as before the experiment.

Rot at 32℃ for 48 hours.

⑴ The variables in this experiment are.

⑵ The root cause of vegetable rot is.

⑶ Through this experiment, it can be concluded that the optimum temperature for keeping green vegetables fresh is.

(4) According to your knowledge and daily life experience, please write down other ways to prolong the storage time of food. (Write a method casually)

46.(3 points) Figure 7 shows a food web of a grassland ecosystem in a balanced state. Please answer the following questions according to the chart analysis:

(1) This food web consists of _ _ _ food chains.

(2) For owls, the food chain that gets the most energy is _ _ _ _.

(3) Figure 7 To form a complete ecosystem, the additional component is _ _ _ _ _.

47.(4 points) The picture is a schematic diagram of an experiment conducted by British scientist Priestley (note: the glass cover is sealed).

(1). This experiment takes A and B as a group of experiments.

(2) In B, photosynthesis of plants provides respiration of mice, and respiration of mice also provides raw materials for photosynthesis of plants.

(3). After the first experiment, when the results are found to be inconsistent with the hypothesis, the following do not conform to the scientific inquiry convention: ()

A. Deny the original hypothesis and draw the opposite conclusion.

B repeat the original experimental scheme for many times to check whether the experimental results are consistent.

C. check the experimental scheme and re-test the hypothesis through experiments.

48.(5 points) Read the material and answer questions.

20 10 3 18 the state administration of pharmaceutical products issued a notice yesterday, requiring local food safety supervision departments to quickly carry out "security inspection" and sampling inspection on the procurement and use of cooking oil and disposable chopsticks by catering enterprises within their jurisdiction, and supervise the destruction of hidden products. China consumes 45 billion pairs of disposable wooden chopsticks every year, which is equivalent to cutting down 6 million adult trees. The ecological value of a tree is 9 times that of its wood.

At present, there are 2-3 million tons of waste oil returning to the dining table every year in China, from street shops to five-star hotels. Aflatoxin is one of the main hazards of waste oil and a strong carcinogen. After eating gutter oil, it can cause symptoms such as food poisoning, headache and vomiting. Long-term consumption will cause developmental disorders, enteritis, hepatomegaly and diseases such as nephropathy and fatty liver. In addition, aflatoxin produced by "gutter oil" pollution is not only easy to cause liver cancer, but also may cause canceration in other parts, such as gastric adenocarcinoma, kidney cancer, rectal cancer, breast cancer, ovary and small intestine.

(1). Disposable chopsticks consume a lot of trees and waste a lot of resources every year, so we should.

(2). The biggest harm of long-term consumption of gutter oil is.

(3). If it is found that illegal cooking oil is produced and sold underground, it will.

(4) The ecological value of a tree mentioned in the material is 9 times that of its wood, and its "ecological value" means that plants can be maintained through photosynthesis.

49.(5 points) Since ancient times, there has been a saying that "after a major disaster, there will be a major epidemic". In order to prevent the outbreak of the epidemic after the earthquake, after the rescue and resettlement work came to an end, the focus of earthquake relief in Sichuan turned to health and epidemic prevention. Please read the following materials and answer the questions.

Material 1: According to the Beijing News on May 3 1, the Sichuan Provincial Health Department announced the occurrence of infectious diseases in the disaster area on May 30. In the middle and late May, 205 cases of disaster-related infectious diseases were reported in Sichuan disaster area, including hepatitis A, hepatitis E, measles, rabies, dysentery, malaria and mumps.

Material 2: After the Sichuan earthquake, with the help of government organizations and rescuers, local victims took a series of epidemic prevention measures: ① protecting water sources; ② Eat the food after it is cooked; ③ Eliminate mosquitoes; ④ Timely isolation and treatment of patients.

Material 3: Sichuan Earthquake Relief Headquarters plans to vaccinate children, primary school students and elderly people over 60 years old with hepatitis A and Japanese encephalitis vaccine or oral cholera vaccine from June 1 day to June 10.

(1). All the diseases mentioned in "Material 1" are caused by _ _ _ _ _ _ _ _ _

(2) The epidemic prevention measures mentioned in "Material 2" belong to _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ (Fill in serial number)

(3) The vaccine mentioned in "Material 3" stimulates lymphocytes to produce a special protein against pathogens, that is, _ _ _ _ _ _ _ _ _, without causing disease, so as to remove the invading pathogens. This immunity belongs to _ _ _ _ _ _.