Raw materials, meanings and products of photosynthesis, respiration, transpiration

Photosynthesis refers to the process in which green plants use light energy to convert carbon dioxide and water into organic matter that stores energy and release oxygen through chloroplasts. The raw materials for photosynthesis are carbon dioxide and water, which means to convert inorganic matter into organic matter, provide energy for plants, and at the same time purify the air and purify the air for the environment. The products of photosynthesis are organic matter and oxygen.

Respiration refers to the total process in which organic matter in an organism undergoes a series of oxidative decomposition in cells to eventually produce carbon dioxide, water or other products, and release energy. The raw materials for respiration are organic matter and oxygen, and the meaning is to provide energy to the organism and maintain the body temperature of a homeothermic animal. The products of respiration are carbon dioxide, water, or other products.

Transpiration is a phenomenon that occurs when water in and on the surface of a plant is evaporated. The raw material for transpiration is water in the plant body and on the surface of the plant, which is to promote the transport of water and inorganic salts, as well as to reduce the temperature of the plant body and the environment. The product of transpiration is water vapor.

Compare. Photosynthesis, respiration:

Location: Chloroplast.

Mitochondria. Conditions:

In the light. Both.

Gas change: Absorbs carbon dioxide.

Absorb oxygen. Oxygen is released.

Carbon dioxide is released.

Raw materials: carbon dioxide, water.

Organics, oxygen.

Products: Organics, oxygen.

Carbon dioxide, water.

Change in matter: inorganic.

Becoming organic. Organic matter becomes inorganic.

Transpiration. Similar to evaporation, it is the water in the body of the plant that is vaporized with water vapor.

The process by which the form is emitted to the atmosphere.

High 3 Biology] Photosynthesis and Respiration.

This question examines the application of the principles of photosynthesis, transpiration and respiration in production, understands the influence of temperature changes on photosynthesis, transpiration and respiration, and improves the ability to solve problems.

1) Photosynthesis refers to the process in which green plants use light energy to convert carbon dioxide and water into organic matter that stores energy through chloroplasts, and release oxygen. The intensity of photosynthesis is affected by temperature, light intensity. In a certain range, the higher the temperature, the stronger the photosynthesis. However, after a certain limit, the higher the temperature, the intensity of photosynthesis decreases.

2) Transpiration refers to a process in which water in the plant is dissipated to the outside of the plant in the form of water vapor through the stomata of the leaf. The steaming effect is affected by temperature and light, and within a certain range, the higher the temperature, the stronger the transpiration effect. However, after a certain limit, the higher the temperature, the weaker the transpiration.

3) Respiration refers to the total process in which organic matter in an organism undergoes a series of oxidative decomposition in the cell, and finally produces carbon dioxide or other products, and releases energy. Respiration is affected by conditions such as temperature, oxygen concentration, moisture, etc. Within a certain range, the higher the temperature, the stronger the respiration; However, after a certain limit, the higher the temperature, the weaker the respiration.

Therefore, the answer is: the influence of temperature on photosynthesis: within a certain range, the higher the temperature, the stronger the lead in photosynthesis; However, after a certain limit, the higher the temperature, the intensity of photosynthesis decreases.

Effect of temperature on transpiration: within a certain range, the higher the temperature, the stronger the transpiration; However, after a certain limit, the higher the temperature, the weaker the transpiration.

The influence of temperature on respiration: within a certain range, the higher the temperature, the stronger the respiration; However, after a certain limit, the higher the temperature, the weaker the respiration.

The activity of photosynthetic enzymes is affected at low temperatures, and the net photosynthetic rate is lower at low temperatures. At high temperatures, the respiration of plants is strengthened, the net photosynthetic rate decreases, and the transpiration of plants is also strengthened. The activity of enzymes is mainly affected by the dark reaction phase.

The optimal temperature of photosynthesis and respiration enzymes is different, and the optimal temperature of respiration enzymes is higher. Therefore, when the temperature exceeds the optimal temperature point of the photosynthetic enzyme, the photosynthetic rate of net plexitic ridge rise decreases. (Respiration is enhanced, light and temperature are affected, the activity of enzymes is reduced).

Within a certain range, the higher the temperature, the more photosynthesis.

the stronger; Above a certain value, photosynthesis begins to weaken. Temperature affects enzyme activity, so photosynthesis is strongest when the temperature is at its most appropriate. Above the optimal temperature, the enzyme activity is weakened. The temperature is too high, in order to prevent the high incidence of water steaming, the stomata are closed, and the carbon dioxide is closed.

**Insufficient, weakened photosynthesis.

Photosynthesis is mainly the synthesis of organic matter needed for plant growth, just like a plant cooking.

Respiration, which converts organic matter needed for growth into energy and heat through respiration, is like a plantation lead eating.

Transpiration, mainly for water absorption, you may not understand, transpiration is obviously a good cover for water evaporation, how does it become water absorption? Because the plant itself does not absorb water, it relies on evaporating part of its internal water, so that the internal water and the external water form a pressure difference, and then the external water will pass through the cell wall of the plant roots into the cell. To put it simply, transpiration is the way plants contribute to their own water cycle, just like drinking water.

And transpiration also has a *** is cooling, you think, plants produce so much heat plus the sun, if you don't cool down, you will be burned to death, especially in summer.

Carbon dioxide and water are both raw materials for photosynthesis in green plants and products of respiration Photosynthesis products, mainly carbohydrates, which include monosaccharides, disaccharides, and polysaccharides. The most common monosaccharides are Portuguese sugar and fructose; Disaccharides are sucrose; Polysaccharides are starches.

Part of the products of photosynthesis are used to build plant bodies and respiration consumption, and most of them are transported to the storage organs of plant bodies for storage, and the oxygen produced by photosynthesis is also one of the most important oxygen in the atmosphere.

The total process in which the organic matter in the organism undergoes a series of oxidative decomposition in the cell to finally produce carbon dioxide, water or other products, and release energy, which is called respiration. [1] 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, and these energy comes from the energy of sugars, lipids and proteins in the body, which is of great significance.

The three roles are described as follows:

Photosynthesis refers to the process by which plants convert carbon dioxide and water into organic matter and oxygen through light energy. In photosynthesis, plants absorb light energy through pigments such as chlorophyll, convert it into chemical energy, and then use this energy to synthesize organic substances. It is an important source of life that provides energy and oxygen to the entire ecosystem.

Respiration refers to the process by which organic matter reacts with oxygen within cells to produce energy and carbon dioxide. Respiration is a basic metabolic process in plants and animals, through which plants can break down organic matter synthesized in photosynthesis into energy and carbon dioxide, thus providing the energy needed by cells.

Transpiration refers to the process by which plants release macro-splitting water into the air through the stomata on the surface of the leaves. Transpiration is an indispensable part of the growth and development of plants, which can regulate the water balance of plants, help plants absorb nutrients and maintain physiological functions. At the same time, transpiration also plays a role in regulating temperature and maintaining plant stability.

a) Distinctions. 1.Location:

The part where photosynthesis takes place must have chloroplast cells, because chloroplasts are the structural basis for photosynthesis, figuratively likened to a "machine" for making organic matter. Respiration is carried out by all living cells, and the cells must carry out normal life activities when they are alive, and life activities need energy support to complete normally, and this energy is released by the decomposition of organic matter by respiration, without respiration, the cells cannot live normally and will die.

2.Conditions: Photosynthesis requires light, because photosynthesis converts light energy into chemical energy and stores it in organic matter, where light energy plays a dynamic role.

Respiration has nothing to do with the light and the heart, no matter day or night, as long as the cells are alive normally, they need energy, and they have to rely on respiration to provide energy.

3.Raw materials: According to the concepts of photosynthesis and respiration, it can be known that the raw materials for photosynthesis are carbon dioxide and water, and the raw materials for respiration are organic matter and oxygen.

4.Products: According to the concepts of photosynthesis and respiration, the products of photosynthesis are organic matter and oxygen, and the products of respiration are carbon dioxide and water.

5.Energy transition: The essence of photosynthesis and respiration can be known

Photosynthesis is the production of organic matter, which converts light energy into chemical energy and stores it; Respiration is to decompose organic matter, release the chemical energy in organic matter for life activities, and a small part is lost in the form of heat.

b) Contact. The answer is more detailed, where photosynthesis and respiration seem to be contradictory, a synthetic substance stores energy, and a decomposes substance to release energy; But it is inseparable from no one: the energy for the absorption of photosynthetic raw materials and the transport of products is provided by respiration, which breaks down the organic matter produced by photosynthesis.

The energy stored in photosynthesis is released by respiration, so they are interdependent. <>

OK. Light and action and respiration are interdependent and are each other's raw materials and products. Both have ATP and NADP for energy metabolism, and the required ADP and NADP are shared in photosynthesis and respiration.

The PPP pathways of photosynthesis and Calvin's cycle, sock retardation and respiration are mutually reversible processes.

Photosynthesis is usually the process by which green plants (including algae) absorb light energy and synthesize carbon dioxide and water into energetic organic matter while releasing oxygen. It mainly includes two stages: light reaction and dark reaction, which involves important reaction steps such as light absorption, electron transfer, photosynthetic phosphorylation, and carbon assimilation, which is of great significance for realizing the energy conversion in nature and maintaining the carbon and oxygen balance of the atmosphere.

Dissimilation refers to the process by which the body degrades molecules (such as sugars, lipids, proteins, etc.) of organic nutrients from the environment or stored by cells themselves into smaller, simple end products (such as carbon dioxide, lactic acid, ethanol, etc.) through step-by-step reactions. Catabolism, another name for dissimilation, is the process by which an organism converts large molecules in the body into small molecules and releases energy. Aerobic respiration is an important way of dissipation.