What is the photosynthesis of plants, evapotranspiration and respiration? Hurry!

Photosynthesis takes place --- in chloroplasts inside plant leaves to absorb carbon dioxide from the air into oxygen, in the presence of sunlight. It is divided into two parts: light reaction and dark reaction. Photosynthesis is the conversion of carbon dioxide and water (hydrogen sulfide and water for bacteria) by plants and algae using chlorophyll and certain bacteria using their cells themselves under the irradiation of visible light.

is a biochemical process that is organic matter and releases oxygen (bacteria release hydrogen).

Transpiration --- the process by which water is lost into the atmosphere in a state of water vapor from the surface of a living plant (mainly leaves). Transpiration is the process of water being lost from the surface of a living plant body (mainly leaves) to the atmosphere in a state of water vapor, which is different from the evaporation process of physics, transpiration is not only affected by external environmental conditions, but also regulated and controlled by the plant itself, so it is a complex physiological process. When plants are young, all surfaces exposed to air can transpire.

Respiration (also known as biological oxidation) - In the case of plants, it is usually done at night (because of the loss of sunlight), at night, plants, like animals, need to breathe oxygen into the air, releasing carbon dioxide, water vapor and energy. The total process of organic matter in an organism undergoes a series of oxidative decomposition in the cell to finally produce carbon dioxide or other products and release energy, which is called respiration. Respiration is a chemical process in which organisms oxidize and decompose organic matter in cells to produce energy, and it is a life activity that all animals and plants have.

The life activities of living organisms all need to consume energy, which comes from the oxidative decomposition of organic substances such as sugars, lipids and proteins in living organisms. The oxidative decomposition of organic matter in living organisms provides the energy needed for life by living organisms, which is of great significance.

production of oxygen, production of nutrients; Cools down and emits moisture; Energy supply,

Respiration: It is to absorb oxygen from the external environment, so that the organic matter in the body is oxidized and decomposed, carbon dioxide and water are produced, and energy is released. Plants need these energies for all their life activities.

Photosynthesis: Green plants use light energy to assimilate carbon dioxide and water to make organic matter and release oxygen.

Transpiration: It is a phenomenon in which plants evapotranspirate water from the body in a gaseous state to the outside of the body through the body surface (mainly leaves). Transpiration is the main driving force for water absorption and transport in plants, promotes the movement and distribution of salts, and can reduce body temperature.

Photosynthesis occurs around 2 p.m. during the day, and respiration occurs at night (without light) in the four seasons

Breathing is strongest at a temperature of 25.

Transpiration is faster when the temperature is high, the light is strong, the air is dry, and the soil moisture is more, because the root hairs of the plant are transporting water and inorganic salts quickly.

Otherwise, transpiration slows down. Generally, the transpiration of plants is strongest in spring or summer just after rain.

Photosynthesis is when plants absorb solar energy through chloroplasts, convert carbon dioxide and water into organic matter, and convert solar energy into bioenergy for storage in organic matter.

Transpiration is the process in which the plant emits water into the air through the leaf pores on the leaf surface to create a pressure difference, so that the water is continuously transported from the root to the leaf, and at the same time, the mineral elements absorbed by the root are transported to the parts needed by the plant.

High 3 Biology] Photosynthesis and Respiration.

Photosynthesis is the process by which plants convert carbon dioxide and water into sugars and water through reactions. Respiration and photosynthesis are opposites, the process of consuming sugars to produce carbon dioxide and water while releasing energy. Transpiration is the process by which plants release water absorbed by their roots through their leaves.

Photosynthesis converts river CO2 into oxygen and transpiration produces water vapor.

Transpiration.

It is the process of water being lost from the surface of the living plant body (mainly leaves) to the atmosphere in a state of water vapor, and it is different from the evaporation process in physics, transpiration is not only affected by external environmental conditions, but also regulated and controlled by the plant itself, so it is a complex physiological process. When plants are young, all surfaces exposed to air can transpire.

The transpiration of growing plants is mainly in the leaves. There are two ways of leaf transpiration: one is transpiration through the stratum corneum, which is called cuticle transpiration; The second is transpiration through stomatal transpiration, which is called stomatal transpiration, and stomatal transpiration is the most important way of plant transpiration.

Physiological significance of transpiration: it is the main driving force for plants to absorb and transport water, which can accelerate the rate of transport of inorganic salts to the aboveground parts, reduce the temperature of the plant body, and enable the leaves to photosynthesize under strong light without being damaged. The amount of water lost by plant transpiration is significant.

It is estimated that it takes one corn plant to be consumed from seedling emergence to harvest.

Four or five hundred pounds of water. Autotrophic green plants must exchange gases with their surroundings during photosynthesis. Therefore, the water in the plant is inevitably lost along the water potential gradient, which is the inevitable result of the plant's adaptation to life on land.

Proper inhibition of transpiration not only reduces water consumption, but is also beneficial to plant growth. Under high humidity conditions, the plant grows more luxuriantly. In the production of vegetables and other crops, sprinkler irrigation can increase air humidity and reduce transpiration, which can increase yield compared with general soil irrigation.

The process of transpiration is as follows: moisture in the soil, root hairs, intra-root ducts, intra-stem ducts, intra-leaf ducts, stomata and atmosphere.

Photosynthesis, or photosynthesis, is a biochemical process in which plants, algae, and certain bacteria use photosynthetic pigments to convert carbon dioxide (or hydrogen sulfide) and water into organic matter and release oxygen (or hydrogen) under the irradiation of visible light. Photosynthesis is the sum of a series of complex metabolic reactions, which is the basis for the survival of the biological world and an important medium of the earth's carbon and oxygen cycle.

Respiration. It is carried out in the life process of the plant.

It uses organic matter and oxygen as raw materials.

It can be done with or without light.

Absorbs oxygen and releases carbon dioxide.

Separates organic matter and releases energy.

Photosynthesis in high school organisms refers to the use of light energy, water and carbon dioxide to produce oxygen organic matter (as well as water). The purpose is a reaction that converts light energy into energy stored in organic matter. is the main ** of all the energies known on Earth.

Respiration refers to the reaction of organisms to completely or incompletely decompose organic matter to produce energy and provide energy for the life activities of organisms.

Transpiration refers to the evaporation of water from the inside of the plant, and the water rises from the ground to the air. There is no chemical reaction. It is simply a biological action used to transport water and minerals.

Photosynthesis is a biochemical process in which plants, algae, and certain bacteria use chlorophyll to convert carbon dioxide and water into glucose and release oxygen when exposed to visible light.

12H2O + 6CO2 = (Light) C6H12O6 (Glucose) +6O2+ 6H2O

Light is a catalyst and does not participate in the reaction.

Difference and connection between photosynthesis and respiration.

Compare content. Photosynthesis respiration.

Distinguishing conditions. It can only be carried out when there is light (during the day).

Nothing to do with light (day, night).

Localities are carried out only in cells with chloroplasts.

It can be performed in all living cells.

Raw materials: carbon dioxide, water.

Organic matter, oxygen.

Product organic matter, oxygen.

Carbon dioxide, water.

The process inhales carbon dioxide and releases oxygen.

Inhale oxygen and release carbon dioxide.

As a result, organic matter is produced and energy is stored.

Decomposes organic matter and releases energy.

The connection does not allow photosynthesis to make organic matter, respiration is not possible (because there are no raw materials), and without respiration to release energy, photosynthesis is impossible (because raw materials cannot be absorbed and products cannot be transported), so the two are interdependent.

Transpiration also has some effects on plant life activities: first, it is a major driving force for plants to passively absorb water, which can promote water absorption and water conduction by plants. Secondly, transpiration causes water to flow through the plant to provide a transport system, with mineral salts being transported from the roots to the upper part of the plant with the water, and organic matter being transported in the plant.

Thirdly, transpiration can also effectively reduce the temperature of leaves, and in strong sunlight, heat dissipation through transpiration can maintain a physiologically appropriate body temperature of plants.

The stomata are the gateways through which plant leaves exchange gases with the outside world. In the process of photosynthesis, plants must exchange gases with their surroundings; At the same time, transpiration through the stomata also causes the plant to lose a lot of water. Transpiration is the vaporization of water and is a physical process.

The intensity of transpiration is not only affected by the environment (e.g., temperature and humidity), but also by the stomatal switch. The function of the stomatal switch is mainly to minimize the consumption of water to meet the CO2 needs of plants for photosynthesis as much as possible. Therefore, the biological significance of transpiration can only be said to be the price that terrestrial plants have to pay in the process of photosynthesis with very low concentrations of CO2 as raw materials to produce organic matter and build their bodies in the atmosphere where water vapor is usually unsaturated.