Provide a few biological questions

20 1 1 Weifang Junior High School Academic Level Examination

Biology test 20 1 1.6

Precautions:

1. This test is ***8 pages, divided into Volume I and Volume II. The answer time is 60 minutes.

2. Volume 1 is a multiple-choice question ***50 points; Volume 2 is a multiple-choice question, ***50 points; Full volume *** 100 points.

3. Before answering the first volume, you need to fill in your name and admission ticket number on the answer sheet with a blue or black pen or ballpoint pen, and clearly fill in your admission ticket number, test paper type and subject with a 2B pencil.

Volume one multiple-choice questions (***50 points)

Description: This volume has ***4 pages ***25 questions. 2 points for each question, ***50 points. There is only one best answer to every question. After choosing the correct answer, black out the corresponding letter codes (A, B, C, D) on the answer sheet with 2B pencil. If you need to change it, you must clean it with an eraser before painting other answers.

1. In order to explore the relationship between temperature and cricket chirping, a classmate fed crickets in an environment with temperature as a variable and counted the number of crickets chirping at the same time. The research process mainly adopts

A. Observation B. Experiment C. Measurement D. Investigation

2. During the use of the microscope, crushing and loading often occur. The following table is the investigation and statistical results of the rolling situation and causes of different research groups. Then the reasons for the fragmentation summarized in the table should be:

Structure Group 1 Group 2 Group 3 Group 4 Group 5 Group

Low/high power mirrors are high and low.

The lens barrel is falling repeatedly, falling repeatedly, falling repeatedly, falling repeatedly.

Coarse/Fine Quasi-focusing Spiral Thickness

A, use low-power lens and lens barrel down and coarse focusing screw b, use low-power lens and lens barrel up and fine focusing screw.

C, use high-power lens and lens barrel to descend, use coarse quasi-focus spiral D, use high-power lens and lens barrel to ascend, and use fine quasi-focus spiral.

3. Cell division can produce new cells, and cell differentiation can form different cell groups. In this regard, the following description is correct

A. The newly divided cells have the same volume as the mother cells.

B. All cells can divide again after growing to a certain extent.

C. in the process of cell division, the genetic material in the nucleus is copied first.

All cells can divide and differentiate under the control of genetic material.

4. There are many weeds in the poorly managed corn field, which will affect the corn yield, mainly because

A. the result of mutual benefit between weeds and corn B. weeds parasitize corn and affect its growth.

C. weeds affect the quality of corn D. the result of weeds and corn competing for living conditions

If you look closely, you will find that the plants around us have different morphological structures. The following plants are distinguished by roots, stems and leaves.

A. kelp, Spirogyra and bracken

6. The following four groups cultured the same plant under different experimental conditions, and the group with the largest stomatal opening should be this group.

Conditional group a b c d

Soil moisture is wet, wet, wet and dry.

Lighting conditions lighting lighting dark lighting.

The temperature is getting higher and lower, lower and lower.

There are many kinds and forms of animals in nature. Please tell which of the following descriptions is wrong.

Most birds have streamlined bodies and air sacs communicating with the lungs.

B.mammals are born with fur.

C fish belong to vertebrates, and their body temperature will change with the change of temperature.

D. Earthworms are segmented, so earthworms belong to arthropods.

8. All human movements are based on certain structures. The following statement about human body structure is correct.

A. all joints of the human body can move. B. The joint consists of joint head and joint fossa.

C. Joints include articular surface, joint capsule and joint cavity D. Biceps brachii belongs to muscle tissue.

9. In Shouguang's rice fields, farmers have the habit of raising Lentz chickens at home, which makes the traditional chicken breeds continue. The researchers used these chicken breeds to breed a batch of new varieties of Shouguang chicken that meet the modern needs through hybridization.

A. The breeding process of new varieties reflects the genetic diversity.

B the process of cultivating new varieties reflects the diversity of biological species.

C. All the behaviors of chickens are obtained on the basis of genetic factors and through the action of environmental factors.

D. Several domestic hens have nesting phenomenon, which belongs to learning behavior 10. "Superbacteria" is a kind of bacteria that is no longer sensitive to most antibiotics, and its production is related to human abuse of antibiotics. The structural characteristics of "superbacteria" are as follows

A. unformed nucleus B. there is no cell structure like SARS virus

C. it has the same cell structure as fungi. D. it has no DNA

1 1. "The experiment of digesting starch with saliva" needs a certain temperature, because the catalysis of amylase in saliva will gradually decrease under the conditions above and below 37℃. The following figure can correctly show the relationship between the action of salivary amylase and temperature.

12. Vaccinating infants with polio vaccine can prevent polio. The following statement about this vaccine is correct.

A.it is the antigen of human body. B. it can directly kill pathogens that invade the human body.

C.it is an antibody of human body. D. directly participate in the formation of the second line of defense of the human body.

13. When someone is accidentally stabbed by a rusty nail, the doctor will inject tetanus antitoxin serum into the injured person, so that the pathogens that may invade the body will lose their pathogenicity directly. The injected substances and the measures taken are respectively

A. antigen, control the source of infection B. antigen, protect susceptible people

C. antibody, control the source of infection D. antibody, protect the susceptible population

14. Artificial pollination is needed for greenhouse cultivation of silver melon in Qingzhou, but under natural conditions, silver melon belongs to.

A. Self-pollination, mainly by insects B. Cross-pollination, mainly by insects.

C. cross-pollination mainly depends on the wind. Self-pollination mainly depends on the wind.

15. In order to explore the conditions of seed germination, some people selected several mung bean seeds and divided them into four groups on average, and then cultivated them in the same environment in the following ways: ① group: normal temperature+moist soil; ② group: cold storage+moist soil; ③ group: normal temperature+dry soil; ④ Group: normal temperature+moist soil+isolated air. The following statement is correct.

A.① and ② can verify the effect of temperature on seed germination.

② and ③ can verify the effect of water on seed germination.

② and ④ can verify the effect of air on seed germination.

③ and ④ can verify the effect of air on seed germination.

16. Visit Shouguang Food Expo, and you will find that many plants are soilless cultivated with various nutrient solutions, and these plants mainly rely on root tips to absorb nutrients.

A. meridian b area. Elongation zone

C. Mature area D. All areas except root cap

17. The following are the propagation methods used in crop cultivation, among which sexual propagation is

A. shoot propagation of anqiu peach B. seedling propagation and cultivation of chestnut

C, propagating Chinese rose by tissue culture technology; D, cultivating chrysanthemum by a root splitting method.

18. Linqu silkworm belongs to a completely metamorphosed insect, and its development process is the same as that of which of the following organisms.

A. locust B. cricket C. fruit fly D. frog

19. The following statements about human reproduction and development are incorrect.

A. The gonads of male and female are testis and ovary respectively.

B. The uterus is the most important sexual organ for women.

C, the fetus completes the material exchange with the mother through the placenta and umbilical cord.

D. fertilized eggs are the starting point of human individual development.

20. A maize with genome aa and a maize with genome AA pollinate each other, so the maize grains produced by these two maize plants.

A. The genetic composition of embryo is the same, but the genetic composition of seed coat is different.

The genetic composition of B embryo is different, but the genetic composition of seed coat is the same.

The genetic composition of C embryo is the same, so is the genetic composition of seed coat.

D. The genetic composition of embryo is different, so is the genetic composition of seed coat.

2 1. The chemical evolution simulation experiment made by American scientist Miller and others supported the origin of life.

A. inorganic substance → organic small molecule stage B. organic small molecule → organic large molecule stage

C. organic macromolecules → independent system stage D. independent system → primitive life stage

22. Among the organisms included in the following taxonomic units, the highest molecular similarity in protein should be

A.d. door

23. One sperm and three kinds of mature blood cells are from a healthy adult male. The minimum number of Y chromosomes contained in these four cells may be

A.4 Article B.2 Article C. 1 Article D.0

24. A classmate encountered a series of problems in the process of trying to "make yogurt with fresh milk" and "make wine with grapes". The correct analysis is as follows

A. yogurt needs to be sealed, and wine does not need to be sealed.

B. making yogurt and wine needs to be done under oxygen-free conditions.

One microorganism is used to make yogurt, and two microorganisms are used to make wine.

D "bacteria" used to make yogurt and wine can reproduce spores.

25. Low temperature and proper control of oxygen and carbon dioxide concentration can prolong the storage period of fruits and vegetables, mainly because of the environment.

A.it can make breathing strong. It will weaken breathing.

C, the intensity of photosynthesis can be adjusted; D, bacteria and other microorganisms can not survive.

Test paper type: a

20 1 1 Weifang Junior High School Academic Level Examination

Biology test 20 1 1.6

Volume 2 Non-multiple choice questions (***50 points)

Precautions:

1. Volume II * * * Page 4. * * * contains six major issues.

Please answer the test paper directly with a blue-black pen or a ballpoint pen.

Please fill in the items in the sealing line clearly before answering the questions.

Scoring reviewer

26.(8 points) Please answer the following practical questions in the process of study and life according to the safety protection methods you have mastered:

(1) Please ask relevant departments to help find out the main food safety problems that may exist in roadside stalls.

.

(2) In the process of sports and field scientific inquiry, if someone has great vein or arterial bleeding, the correct treatment is.

(3) When we encounter psychological contradictions, difficulties and setbacks in the process of study and life, the correct approach should be:

.

(4) Teenagers' addiction to the Internet or video games will not only affect their study, but also lead to myopia because they can't recover from staring at the screen for a long time.

(5) In order to ensure the safety of drug use, you should know all the information on the drug instructions before taking the drug. The information you know is:

(Write three items).

Scoring reviewer

27. The following are a series of questions related to human physiological activities. Please explain them according to your biological knowledge:

(1) Gas exchange in human body includes two processes, namely.

(2) Intravenous injection is generally used when infusion is given to patients, because veins are generally distributed on the body surface to prevent blood from flowing backwards in veins; Oxygen is transported in the blood.

(3) When red blood cells and protein are detected in human urine, the permeability increases.

(4) Glucose in urine is reabsorbed by renal tubules and returns to capillaries, which needs to cross the cell membrane.

(5) Please connect the four blood vessels A, B, C and D on the right with the corresponding blood vessels in the heart.

Scoring reviewer

28.(9 points) Read the following text and answer relevant questions:

20 10 February, Chinese scientists bred a new rice variety "Jiangtang Rice 1" with resistant starch, protein and high dietary fiber content for the first time. Compared with ordinary starch, "resistant starch" is difficult to degrade into glucose in the digestive tract and will not raise blood sugar too quickly. Relevant animal experiments conducted by scientists using diabetic model rats have proved that this rice has obvious effects on maintaining steady weight growth and lowering blood sugar.

(1) Among the various nutrients mentioned above, the basic substances that constitute tissues and cells are. Known as the "seventh nutrient" is.

(2) In the human digestive tract, the process of transforming starch into glucose is called. The structural characteristics of the main organs that absorb glucose in the human body are as follows.

(3) Diabetes is a common disease of human beings, and its main reasons are as follows.

(4) Animal experiment is an important link to verify the hypoglycemic effect of "Jiangtang Island 1". Please use the above model rats to restore scientists' short experimental steps:

Scoring reviewer

29.(8 points) The following questions are about the regulation of human life activities, please analyze and answer them:

(1) The physiological activities of the human body are mainly through

The provisions of the * * * and complete.

(2) Dwarf patients and dwarfism patients are short in stature, respectively, because of childhood.

Caused by insufficient secretion.

(3) Neurons are highly specialized cells, and the concentration of these cells forms spinal cord gray matter and cerebral hemisphere surface gray matter; The white matter of the spinal cord and the white matter in the cerebral cortex form an aggregate.

(4) When you walk along the coast and suddenly step on a sharp shell, your feet will spring up automatically and you will feel pain. This process proves that the spinal cord is functional. Please write down the structure that completes the automatic bounce reflex activity of the foot.

(5) During the 100-meter race, the athletes' hearts beat faster and their breathing accelerated, which is a reflection.

Scoring reviewer

30.(8 points) The following figure is a schematic diagram of the relationship between some organisms in a farmland ecosystem. Please answer the following questions according to the chart:

(1) There is a food chain in this ecosystem.

(2) Please write a description of the physiological process of solar energy input into the ecosystem.

(3) In the food chain of "corn → mouse → snake", if a snake gains 50 grams, it will consume at least 10 grams of corn.

(4) Compared with forest ecosystem, this system has weak self-regulation ability, because.

(5) The resistance of corn borer was greatly enhanced by long-term application of pesticides, mainly due to the results; Scientists have found that a plant can produce a substance that kills corn borer, and the gene (G) that controls the synthesis of this substance has been isolated. Please design a plan to cultivate insect-resistant corn by transgenic technology:

Scoring reviewer

(9 points) Changle County in our city is a famous "hometown of watermelon". In the long-term cultivation process of watermelon, researchers and melon farmers have been exploring and studying cultivation techniques, and cultivated a wide variety of high-quality watermelons. Please answer:

(1) Watermelon in greenhouse (Figure 1) can be put on the market in advance, mainly to overcome the influence on plant growth; Watermelon has many seeds, which shows that there are many kinds of seeds in its ovary.

(2) Watermelon should be planted at a reasonable density (Figure 2), mainly to improve efficiency.

(3) Square Watermelon Square watermelons can be cultivated by putting young watermelons in a square basket (Figure 3). The reasons why this trait cannot be passed on to future generations are as follows: Seedless watermelons are formed by changes.

(4) Suppose you plant a batch of homozygous green watermelons (the genome becomes dd or DD), and one day you find that one of them has mutated into striped watermelon skin. If striped watermelon crosses homozygous green watermelon, the offspring will be 50% striped watermelon and 50% green watermelon. Please use the genetic map to explain the genetic composition and character performance of the above two parents and their offspring.

20 1 1 biological test of Weifang junior high school level examination.

Reference answer

Volume one multiple-choice question (***50 points)

2 points for each small question, ***50 points.

1—5 bccdd 6— 10 adcaa 1 1— 15 dad ba 16—20 cbcba 2 1—25 aacbb

Volume 2 Non-multiple choice questions (***50 points)

(Unless otherwise specified, each space 1 dot)

26.(* * * 8 points, part of the answer to this question is not unique, as long as it is reasonable, you can score)

(1) The quality of raw materials cannot be guaranteed, the processing environment is poor, and the tableware is unqualified. (65438+ 0 points for answering a question correctly, 2 points for * * *).

(2) Call 120 in time and use a tourniquet or finger to stop bleeding (2 points).

(3) Communicate with teachers and classmates more, face up to and face difficulties and contradictions, be open-minded, vent in the right way, and learn to adapt to the surrounding environment. (1 stands for a correct answer, and 2 stands for * *).

(4) the lens convexity is increased

(5) main ingredients, indications, usage and dosage, drug specifications, precautions, production date, expiration date, manufacturer, storage conditions, etc. (65438+ 0 for answering two questions correctly).

27.(* * * 8 points)

(1) gas exchange in alveoli and gas exchange in tissues (2 points)

(2) Valve (venous valve) Red blood cells (hemoglobin)

(3) glomerulus (capillaries in glomerulus)

(4)4

(5) Refer to the figure on the right (2 points, 1 0 points for one wrong deduction, 2 points for two wrong deductions, and other connection methods are acceptable as long as they are reasonable).

28.(* * * 9 points)

(1) protein dietary fiber

(2) There are annular folds on the inner wall of digestive small intestine, with many villous protrusions on it. The villous wall is very thin, and there are capillaries in the villi (2 points correct).

(3) Insufficient insulin secretion

(4)(3 points) (as long as it is reasonable, you can score)

① Two groups of diabetic model rats with the same physical and physiological conditions were selected (or equally divided into two groups).

② One group (experimental group) was fed with "hypoglycemic rice 1" rice, while the other group (control group) was fed with the same amount of ordinary rice (other environments and feeding conditions were the same).

③ After a period of time, the body weight and blood sugar content of two groups of experimental mice were measured. (Multiple experiments can be repeated)

29.(***8 points)

(1) nervous system and hormones

(2) Thyroid hormone and growth hormone (reverse order does not score)

(3) Cellular nerve fibers

(4) reflex and conduction of plantar skin (receptor) → afferent nerve → nerve center (spinal cord) → efferent nerve → leg muscles (effector) (2 points)

⑤ Unconditional

30.(* * * 8 points)

( 1)5

(2) Carbon dioxide+water+organic matter+oxygen (2 points)

(3) 1250

(4) few types and simple structure.

(5) Gene G was spliced in vitro (1 min) due to the directional selection of pesticides to pests; Then it was transferred into maize, so that maize contained insect-resistant (target) genes and showed insect-resistant characteristics (1 min).

3 1.(* * * 9 points)

(1) temperature ovule

(2) photosynthesis

(3) Genetic material has not changed (only caused by environmental factors) the number of chromosomes.

(4)(* * 4 points, phenotype error unmarked, phenotype unmarked 2 points, lack of hybridization symbol 1 point, lack of genetic graphic description 1 point).