What are the aspects of feedback inhibition of plant respiration

The respiration of plants is divided into two kinds of aerobic respiration and anaerobic respiration, to inhibit the respiration of plants, it is necessary to start from these two sides, one is to reduce the temperature, which can reduce the activity of enzymes in the respiration process, and the other is to reduce the oxygen content of the environment, but if the oxygen content is too low, the intensity of anaerobic respiration will be intensified, so in general, when the oxygen content is maintained at 5%, the respiration of the plant is the lowest.

External factors influencing respiration: Temperature, moisture, oxygen, and carbon dioxide concentration are the main factors affecting respiration. Temperature:

Temperature has the greatest effect on the intensity of respiration. The temperature increases, the respiration is strengthened; If the temperature is too high, the respiration is weakened. Moisture:

The water content of plants increases, and respiration is enhanced. Oxygen: Within a certain range, respiration is significantly enhanced with the increase of oxygen concentration.

Carbon dioxide: When the concentration of carbon dioxide is much higher than normal, it inhibits respiration. When storing vegetables, fruits, and grains, measures such as low temperature, drying, and carbon dioxide filling can extend the storage time.

The important physiological significance of respiration is:

1.Provides most of the energy needed for plant life activities. Part of the energy released during respiration is stored in the form of the high-energy compound adenosine triphosphate (ATP), and the energy released when ATP is hydrolyzed can be used for biosynthesis, ion accumulation and active transport of substances in the body in plants, while the other part is converted into heat energy and lost.

2.Oxidized intermediates provide raw materials for many biosynthetic processes. Therefore, respiration is not a simple process of alienation, it is also the hub of plant metabolism like photosynthesis.

There are many measures to inhibit the silent respiration of the residue foci:

1.Controlling climatic conditions, such as temperature, humidity, light, etc., can inhibit the respiration of plants.

2.Water control means that when plants are dehydrated, their respiration will be weakened, and when plants are adequately hydrated, their respiration will be enhanced.

3.Controlling nutrients, when the plant is deficient in nutrients, its respiration is weakened, and when the plant is full of nutrients, its respiration is enhanced.

4.Controlling light, when plants lack light, their respiration becomes weaker, and when plants have sufficient light, their respiration increases.

1. Cooling: Placing plants in the bucket oak section in a low temperature environment can reduce the respiration of plants and delay the metabolism and senescence of plants.

2. Ventilation: Through ventilation, the oxygen content around the plant can be increased and the respiration of plants can be promoted, but it is necessary to pay attention to the control of ventilation volume to avoid excessive ventilation leading to plant water loss.

3. Packaging: Packaging plants in sealed containers can reduce the oxygen contact between plants and the outside world, thereby inhibiting the exhalation of plants.

4. Modified atmosphere preservation: By adjusting the gas composition around the plant, such as increasing the carbon dioxide concentration and decreasing the oxygen concentration, the respiration of the plant can be inhibited and the shelf life of the plant can be prolonged.

The snorting and sucking effect of the plant:

Aerobic respiration disorder: C6H12O6 + 6O2 6CO2 + 6H2O+ energy.

Anaerobic respiration: C6H12O6+ 2C2H5OH+ 2CO2+ energy.

Upstairs, please note.

Anaerobic respiration in plants only produces alcohol (C2H5OH) type, and does not produce lactic acid (C3H6O3). Lactic acid is produced by the anaerobic respiration of animals.

1. Reducing respiration can reduce the consumption of organic matter, which is conducive to the growth of plants.

2. The fruit respiration is weak, the consumption is less, and the accumulation is more, so it is conducive to growth, for example, Xinjiang is very cold at night, and the breathing effect is weak, so the sugar accumulated during the day is consumed less at night, so the sweetness is high;

3. Reducing the respiration of plants is carried out under the condition of ensuring the normal growth of plants, in order to prevent excessive consumption of organic matter, so as to better increase the accumulation of organic matter.

What are the physiological indicators of the strength of respiration and sexual disorder of the plants that judge the bridge?

a.Respiration rate.

b.Respiration coefficient.

c.Breathing intensity.

d.Hu Min shouted to suck the quotient.

Correct Answer: Respiration rate; Respiration coefficient. Breathing intensity. Respiratory quotient.

Respiration in plants is related to factors such as temperature, moisture, light, oxygen concentration, and carbon dioxide concentration. Temperature has the greatest influence on respiration, and when the temperature is too high or too low, it will inhibit or weaken the respiration of plants; When the water content of plants decreases, it will inhibit or weaken the respiration of plants; When the concentration of carbon dioxide is high, it can also inhibit or weaken the respiration of plants.

The respiration of plants includes aerobic and anaerobic respiration. Aerobic respiration is the main form of respiration in higher animals and plants, so what is commonly referred to as respiration refers to aerobic respiration. The main site where cells undergo aerobic respiration is mitochondria, and the site where cells undergo anaerobic respiration is the cytoplasmic matrix.

In addition to their own use, the organic matter produced by the respiration of plants also enters the human body through the food chain, participates in the construction of other organisms, and provides energy for the life activities of other organisms.