Under what circumstances do plants die faster?

I think it's C. if you choose one of the fourLack of moisture.

1. In addition to photosynthesis, plants also have a very important respiration effect, photosynthesis synthesizes organic matter, stores energy, and respiration decomposes organic matter, produces energy, and meets the energy needs of plants for survival. The lack of sunlight and carbon dioxide cannot carry out photosynthesis, but it can also carry out respiration to meet the needs of decomposing organic matter to produce energy. Just as a person has nothing to eat (photosynthesis), but can still break down stored fat in the body (respiration) to sustain life.

2. Fertilizer is not a necessary ingredient for plant survival, but only an auxiliary ingredient, so it will not quickly lead to plant death.

3. Water directly participates in all the life functions of plants, as long as there is a lack of water, soon plants will not be able to carry out all the functions related to life activities, and will inevitably wither soon.

Option A He needs photosynthesis to make organic matter to survive.

That's a and d, because light and action require carbon dioxide and sunlight.

Is it really an exam question? As a biology teacher, I'm ashamed of the person who came up with this question! I feel sorry for the students who answered the questions! How can the factors that affect the life process be analyzed and measured by a single factor!

The answer to the question, I presume, is A. Here's why:

Energy is non-renewable (one-way, decreasing transfer).

Substances are renewable (recycled).

As a result, energy is lost at a relatively faster rate than the reduction of matter (water, inorganic salts and carbon dioxide), which affects life activities.

aWithout sunlight and other light sources, plants are sure to die quickly

It should be that without photosynthesis, without ATP to sustain it, the plant will definitely die.

It should be a because the plant needs to carry out light and action

Choosing D is the same as people, it is no problem not to bask in the sun for a few days, not to drink water and not to eat. But if you don't breathe, it'll be over in a while. Carbon dioxide is the oxygen of plants.

c.Lack of moisture.

Any living plant has water, that's obvious.

Other options can cause plants to grow poorly or have a shortened growth cycle, to the point of death.

I understand that the lack here refers to the extreme lack here!

I choose CLack of moisture.

AD As a counter-example, deciduous trees do not photosynthesize in autumn and winter, and live well, just as they cannot photosynthesize without sunlight or carbon dioxide.

The concept of lack of fertilizer is very vague, and how can it be calculated if leguminous plants do not need to be fertilized? Lack of fertilizer is like a person who has not eaten enough, malnutrition, and it is difficult to say whether he will die or not.

Water is not only one of the raw materials for photosynthesis, but also the site (solvent) of various biochemical reactions in the environment of living organisms, which is closely related to the transportation of substances in the body of organisms and is closely related to metabolism.

Select CLack of moisture.

Sunlight and carbon dioxide are mainly needed for photosynthesis, but in winter, many trees have lost their leaves and cannot photosynthesize well, but one winter does not make them anything, and in spring they still sprout and grow new leaves.

Lack of fertilizer just makes the plant not grow well.

But there is a lack of water (the source of life!) All the metabolism in the body can't go on properly, it can't be metabolized, and before long, the plant may not be called a living thing.

Is it greenery? If yes, then ACD

Most green plants are autotrophs, using photosynthesis to convert water and carbon dioxide into oxygen and nutrients.

Sunlight is certain, and without water and carbon dioxide there are no conditions for photosynthesis.

You can try to make the plant die fast with the following methods:

1. The liquid with high pH can make the plant quickly dehydrate and die, so you can water concentrated sulfuric acid or high-concentration salt water, chemical fertilizer, etc. in the soil where the plant roots are located.

2. Mix a certain amount of water with herbicide, and spray a large amount of plants in the scorching sun; In the scorching sun, plants will absorb a large amount of herbicides due to lack of water, herbicides are chemicals, which have a great harmful effect on plants, and absorbing a large number of herbicide drugs will make the broken plants die quickly;

3. In the scorching sun, watering with boiling water can also make the plant die quickly, in the scorching sun the plant will absorb a large amount of boiling water due to lack of water, because the boiling water is very hot, it will cause serious damage to the root tissue of the plant, and the small plant is likely to be scalded directly.

There are many reasons why potted plants often die, in short, they are caused by not understanding the growth characteristics of the potted plants. For example, untimely watering leads to drought death, over-watering leads to anaerobic respiration death of roots, death of low temperature, death of excessive fertilization, death of unsuitable soil pH, death of diseases and insects, and other reasons.

1. If there is a problem with the potted plant due to the application of thick fertilizer or too much fertilizer, you should stop using the fertilizer immediately, and water the soil in the pot with water (water) in time to dilute and dilute the fertilizer, and place the potted plant in a cool place indoors, so that it can recover and grow naturally and slowly.

2. What should I do if the pot has not been watered for a long time and the potting soil is all dry? At this time, you must not be in a hurry, and you must not water it immediately or water it thoroughly. Be sure to water slowly and gradually.

First of all, move the pot to a semi-shaded place, and then water it a little to make the soil in the pot moist. At the same time, spray some water on the leaves of the plant, wait until the stems and leaves stand up, and then water thoroughly to carry out normal maintenance work.

3. What should I do if the potted plants are waterlogged due to too much watering? First of all, pour the plant soil out of the pot and place it in a cool and ventilated place indoors, so that the saturated water in the soil can be quickly dissipated. Increasing the air permeability of the plant can restore the normal activity of the root system faster.

At the same time, spray a little water on the surface of the plant to reduce the consumption inside the plant. It is also possible to spray some fertilized leaf amino acid foliar fertilizer.

Some plants are not suitable for potted plants, some southern flowers are not suitable for growing in the north, some flowers can not be fertilized, and can not be watered too much, do a line to love a line, usually say to cultivate flowers, so be patient, to understand how to raise different plants, for your favorite search, learn hard, you will be able to raise well.

One is that potted plants grow in limited soil.

Second, the growing conditions need to be continuously supplemented with nutrients and water in order to grow well.

Third, the maintenance environment often has factors such as light, ventilation, temperature, and humidity that cannot meet the normal needs.

Watering generally adhere to the principle of "do not dry and do not water, watering is watered thoroughly".

First, can you describe the situation before the wilting, the leaves are yellow or black? Or is the green one just dropping its leaves?

Presumably, most indoor potted plants die from too much water because of the small amount of evaporation indoors, and then, most people like to water it often!

The soil does not have a process of drying and wetting, the roots of the plant are not breathable, and they slowly decay, so they cannot absorb water, and they are waterlogged.

Some plants are not suitable for potted plants, some southern flowers are not suitable for growing in the north, some flowers can not be fertilized, and can not be watered too much, do a line to love a line, usually say to cultivate flowers, so be patient, to understand how to raise different plants, for your favorite search, learn hard, you will be able to raise well.

It is likely to be caused by a lack of water or a lack of a certain nutrient.

There may be pots of small plants that grow larger

It depends on your planting level.

You can try to make the plant die fast with the following methods:

1. The liquid with high pH can make the plant quickly dehydrate and die, so it can be watered in the soil where the plant roots are located, and the sulfuric acid or high-concentration salt water, chemical fertilizer, etc.

2. Mix a certain amount of water with herbicide, and spray a large amount of plants in the scorching sun; In the scorching sun, plants will absorb a large amount of herbicides due to lack of water, herbicides are chemicals, which have a great harmful effect on plants, and absorbing a large number of herbicide drugs will make the broken plants die quickly;

3. In the scorching sun, watering with boiling water can also make the plant die quickly, in the scorching sun the plant will absorb a large amount of boiling water due to lack of water, because the boiling water is very hot, it will cause serious damage to the root tissue of the plant, and the small plant is likely to be scalded directly.

If you want to save a dying plant, you need to find out the reason for its dying, if it is caused by too little watering, you must replenish it in time, and if it is caused by too much watering, you must drain it in time. If the soil is not good, the plant will also die, so replace it with new soil. It is also necessary to maintain it with the right light and temperature so that the plant can regain its vitality.

1. Reasonable watering

The phenomenon of dying of plants may be caused by too little watering or too much watering, so if you want to save it, you need to water it reasonably, such as watering too little to replenish it in time, if you water too much, you must drain away the excess water, cut off the rotten roots, and replant.

2. Replace the soil

The phenomenon of dying of plants may also be caused by soil discomfort, such as excessive soil stickiness, improper properties and excess nutrients, etc., which will lead to plant death, so at this time, it is necessary to replace the appropriate soil according to the growth habits of plants, so that plants can recover their vitality.

3. Temperature control measures

Most plants like to grow in a warm environment, if the temperature is too high or too low, it is easy to die, so if you maintain the plant in summer, you need to do a good job of cooling and ventilation measures to avoid it growing in a sultry environment, and you need to keep the plant warm in winter to avoid it being frozen to death.

4. Suitable lighting

If you want to save the plant, you need to maintain it in a suitable place according to the growth habit of the plant, and do a good job of shading the plant in summer to avoid it from being exposed to the sun, so that the plant can survive.

1. Water: Some terrestrial plants are damp for a long time, resulting in rotten roots, and some aquatic plants cannot survive if the water is too deep; In drought, plants will also die due to chronic lack of water. The pH of the water is not suitable for plant growth and may also cause plants to die.

2. Soil: The pH of the soil is not suitable for plants and will also cause death. Saline soils cause the death of most plants. Improper fertilization and over-concentration of fertilizer may also cause plant death.

3. Light: If the light is too strong or too weak, it may cause the plant to die.

4. Pests and diseases: Pests and diseases are also one of the causes of plant death.

5. Others: all kinds of natural disasters, animal injuries.

There are too many, drought should be the main cause, and waterlogging can also cause plants to die due to root rot. High temperatures, pests and diseases can also lead to plant death.

The cause of death of bonsai, how to control it.

It's not called Qisui like that, except in fables, the quiet death of plants doesn't use the word hail death, <>

Hello! I am glad to serve you to inquire: the tree is dead and weighed as withered, withered is dry, impotence is atrophy, the reason is that the tree has lived to the upper limit of age, or received damage from external factors, so that it can not play its role normally, can not obtain the energy that can survive itself, it will be disturbed by the branches to lose its water, and then lose its vitality, the result can be imagined, there is no water then called dryness, branches and leaves begin to shrink, and finally the finch will wither.

I hope mine can help you and have a great life!