A few biology questions, hurry! A biology topic, help!

Petri dishes with diabetics.

Diabetic patients have a blood sugar higher than any time. Western medicine is called sweet polyuria, and Chinese medicine is called thirst, which is emaciation plus polydipsia. Glucose enters the urine.

As blood sugar levels continue to rise, the kidneys excrete extra water to dilute the large amount of glucose lost in the urine. There is a lot of glucose in the urine Ants are sweet animals, so all of them will go to the sweet urine Hehe That's my opinion!

Is this also called a problem?

It must be on the urine side of the diabetic person, the pancreatic islet B cells of the diabetic person are abnormal, and the insulin secreted is less or no insulin, so the way to maintain the balance of blood sugar is sent out with the urine, so the urine contains a lot of sugar, so the ants will run to the urine of the diabetic according to their keen "sense of smell".

There is generally almost no sugar in the urine of normal people, but if too much sugar is eaten at one time, a small amount of sugar will appear!! But it doesn't return more than the patient's!!

Accumulation of urine in diabetics Because the diabetic person's pancreatic islets have problems and cannot secrete insulin normally, glucose in the body cannot be broken down, and sugar is excreted through the urine, so the sugar content in the urine of diabetics is higher than that of ordinary people, and ants are attracted to sweetness and will gather in a petri dish containing the urine of diabetics!

Uh, I'll correct the one on the first floor.

It is not the kidneys that secrete insulin.

Rather, they are the B cells in the islets.

Ants congregate in a diabetic patient's urine dish. Because the amount of glucose in the urine of healthy people is 0, and the amount of glucose in the urine of diabetic patients is high, this is because the kidneys cannot secrete insulin.

Totally agree with the two upstairs.

There is no doubt that the urine of diabetics is glycosuria, which not only contains glucose, but also other trace amounts of biomolecules such as protein fats, of course, these things are all the favorite of ants, so ants are gathered in the urine petri dish of diabetic patients.

Ants crawl towards the urine of diabetics because it contains glucose, which attracts ants.

A false, ATP can be used for photosynthesis and respiration in plants, and cellular respiration and phosphocreatine decomposition in animals.

B Yes, ATP is stored in active chemical energy, which is the direct energy substance of life activities, and 2870kJ of energy is released when 1mol of glucose is completely oxidized, of which 1161kJ of energy is stored in ATP.

D false, the energy in ATP can be used for light energy (photosynthesis), chemical energy (chemical energy synthesis), but not for thermal energy, and the energy in ATP can be converted into light energy, electrical energy, mechanical energy and other energy.

a.Amoebae have a special structure, the telescopic bubble, which excretes excess water from the body (which also contains metabolic waste) to regulate the water balance.

b.There is a kind of salt-excreting cell on the gill filaments of marine fish, which can excrete the salt brought by the blood from the body in time.

c.After eating, the osmotic pressure of body fluids is too high. Excess salt is excreted from the body through the salt glands to maintain the osmotic balance of body fluids.

d.Malmobiti's ducts are the main organs of excretion and osmoregulation in insects, helping them maintain water and electrolyte balance.

The telescopic vesicle is the organ that regulates the volume of the amoeba.

Red-green blindness is associated recessive inheritance, if the proportion of recessive pathogenic genes is x, then the dominance is 1-x, there are 5000 males and 5000 females on the island, the number of male patients is 5000x (because there is no pathogenic gene on the Y chromosome), and the number of female patients is 5000xx*2 (5000 times x x squared), and the sum of the two is 500, and the value of x is solved. The number of female carriers is 5000x(1-x)x2. Because there are two kinds of female carriers, implicit and explicit, they have to be multiplied by two.

Because red-green color blindness is a genetic locus on the X chromosome, are all 500 patients male? The analysis is as follows.

Female carriers and normal males have a 50% chance of developing the disease and a 25% chance of having male offspring. Now there are 500, i.e. 500 25% of female carriers, 2000.

1 The A and C of all examples have nothing to do with this question, I believe you can judge, the article does not mention it at all.

There must be a contradiction on b and d.

The absorption and fixation effect of d is essentially that the plant root system absorbs the water and inorganic salts in the soil, and continuously extends to condense the soil and fix the plant itself, which plays a protective role. It has nothing to do with this question.

The difficulty in Example 2 lies in understanding the meaning of each role.

A is more familiar, degradation is the decomposition of pollutants by microorganisms, so that macromolecular substances become small molecules, which belongs to the purification mode of action.

b Co-metabolism even if it needs to add primary energy substances to degrade, the same as a

cDetoxification refers to the change of the molecular structure of pollutants to reduce or remove their harmfulness to ecosystems.

Microorganisms can not only change the structure of pollutant molecules, but also change the toxicity of contaminants.

D is only a physical phenomenon, and substances with a low melting and boiling point are volatile, and have nothing to do with the purification of microorganisms.

As the answer is D, Example 3, this question can quickly determine that the CD is correct.

Primarily AB's judgment.

There are two types of microbial purified water: anaerobic microbial treatment and aerobic microbial treatment.

Due to the strict requirements and long time of anaerobic microbial treatment equipment, it has affected its promotion. Therefore, it is generally the choice of aerobic microbial treatment

1.The title is all dust, and only B is suitable.

2.Volatilization is a purely physical concept.

3.Microbial treatment of sewage, anaerobic microorganisms and aerobic microorganisms may be used, is it not C.

Example 1The pines, oaks, and beeches that have a role in the question are all green plants, not microorganisms but green plants, excluding C, and saying that these green plants can adsorb, retain and stick to a part of the dust, which is adsorption rather than absorption, as for the "bacteria" has not been killed, so AD is excluded and B is selected.

Example 2Volatilization is a physical process.

Example 3The use of microorganisms to purify sewage When the sewage treatment plant treats the sewage, on the one hand, it uses filtration, sedimentation and other methods to remove the solid pollutants with relatively large individuals in industrial sewage and domestic sewage; On the other hand, a variety of aerobic microorganisms in sewage are used to decompose the organic matter in sewage into carbon dioxide, water and inorganic salts containing nitrogen and phosphorus, so that sewage can be purified. After the sewage is purified and treated, it can be used for irrigation of farmland and cooling water for factories when it meets the discharge standards stipulated by the state.