Why plant photosynthesis plant photosynthesis and respiration can synthesize ATP

Most typically, it is synthesized by ATP synthase by oxidative phosphorylation in the chondria, or by photosynthesis in the chloroplasts of plants. The main energy sources for ATP synthesis are glucose and fatty acids. Each molecule of glucose first produces 2 molecules of pyruvate in the cytoplasmic matrix and 2 molecules of ATP, and finally produces up to 38 molecules of ATP in the ** granularity through the tricarboxylic acid cycle (or citric acid cycle).

Light and dark reflect the relevant chemical equations.

H20 H+ O2 (photolysis of water).

Nadp+ +2E- +H+ Nadph (Hydrogen Delivery).

ADP+PI ATP (Energizer).

CO2+C5 compounds C3 compounds (carbon dioxide fixation).

C3 compound (CH2O) + C5 compound (formation of organic matter or reduction known as C3).

ATP ADP+PI (energy consumption).

Energy Conversion Process: Light Energy Unstable chemical energy (high-energy phosphate bonds where energy is stored in ATP) Stable chemical energy (synthesis of sugars i.e. starch).

Respiration is divided into aerobic respiration and anaerobic respiration.

The whole process of aerobic respiration can be divided into three stages: in the first stage, one molecule of glucose is broken down into two molecules of pyruvate, and a small amount of hydrogen (denoted by [h]) is produced in the process of decomposition, and a small amount of energy is released at the same time. This stage is carried out in the cytoplasmic matrix; In the second stage, pyruvate undergoes a series of reactions to break down into carbon dioxide and hydrogen, while releasing a small amount of energy.

This stage is carried out in the ** chondria ; In the third stage, the hydrogen produced in the first two stages, after a series of reactions, combines with oxygen to form water, and at the same time releases a large amount of energy. This stage is also carried out in the ** granula. Each of the above three chemical reactions is catalyzed by different enzymes.

In the organism, 1mol of glucose is completely oxidized and decomposed, and a total of 2870kJ of energy is released, of which about 1161kJ of energy is stored in ATP, and the rest of the energy is lost in the form of heat energy.

Anaerobic respiration generally refers to the process in which cells decompose organic substances such as glucose into incomplete oxidation products through the catalysis of enzymes under anaerobic conditions, and at the same time release a small amount of energy. For higher plants, higher animals, and humans, this process is called anaerobic respiration. If it is used for microorganisms (such as lactic acid bacteria, yeasts), it is customarily called fermentation.

The site where cells undergo anaerobic respiration is the cytoplasmic matrix. Apples have been stored for a long time, why do they smell like wine? In the case of flooding, higher plants can perform a short period of anaerobic respiration, break down glucose into alcohol and carbon dioxide, and release a small amount of energy to adapt to the anoxic environmental conditions.

High 3 Biology] Photosynthesis and Respiration.

1. The difference between photosynthesis and respiration in plants:

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.

2. Place of photosynthesis: plant cell chloroplast;

Conditions of photosynthesis: light ;

Raw materials for photosynthesis: water, carbon dioxide;

Yield of photosynthesis: organic matter such as sugars;

Energy change in photosynthesis: light energy is converted into chemical energy;

3. Places of respiration: mitochondria of animal and plant cells;

Conditions of respiration: enzymes;

Raw materials for respiration: organic matter such as sugars, oxygen;

Output of respiration: carbon dioxide, water, a lot of energy;

Energy change of respiration: Stable chemical energy is transformed into active chemical energy.

1. The relationship between photosynthesis and respiration in plants is interdependent and the process of action is opposite. The interdependence of photosynthesis and respiration in plants is manifested in the fact that respiration cannot be carried out without the organic matter produced by photosynthesis.

2. This is because the organic matter decomposed by respiration is the product of photosynthesis, and the ability released by respiration is also the energy stored by photosynthesis in organic spoilage. If there is no respiration, then photosynthesis cannot be carried out, mainly because when the plant undergoes photosynthesis, the energy required for the high absorption of raw potatoes and the transportation of products is also released by respiration.

Plant photosynthesis is the process in which green plants use light energy to convert carbon dioxide and water into organic matter that stores energy and release oxygen. The respiration of living beings includes two types, aerobic respiration and anaerobic respiration. Aerobic respiration refers to the process in which cells completely oxidize and decompose organic substances such as sugars through the catalytic action of enzymes with the participation of oxygen, producing carbon dioxide and water, and releasing a large amount of energy at the same time.

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. In general, glucose is the substance most commonly used by cells for aerobic respiration.

Photosynthesis is the absorption of carbon dioxide by plants and the release of oxygen, and the necessary condition is the presence of light; Respiration is the absorption of oxygen by plants and the release of carbon dioxide, which occurs at any time. The interdependent relationship between photosynthesis and respiration is reflected in the following aspects: 1) each other as raw materials and products, 2) energy metabolism relationship, both ATP and NADP are produced, and the required ADP and NADP are shared in photosynthesis and respiration, 3) photosynthesis and the PPP pathway of Calvin cycle and respiration are inverse processes of each other.

In addition, since both photosynthesis and respiration are involved in enzymes, temperature has a great influence on both.

Photosynthesis and respiration in plants are both very important processes in plant life activities. Plants convert light energy into chemical energy through photosynthesis, which is used to synthesize organic matter, and release oxygen. Whereas, respiration converts organic matter into energy for plant growth and metabolism while releasing carbon dioxide.

In general, photosynthesis in plants is greater than respiration. This is because the amount of organic matter produced by plants during photosynthesis is usually much greater than the amount of organic matter they consume during respiration. This is especially true when there is plenty of daylight and the temperature is suitable.

As a result, plants can absorb enough energy through photosynthesis to maintain the organic substances they need for growth and metabolism and release large amounts of oxygen.

However, when there is not enough light or the temperature is low, the plant's ability to photosynthesize may be affected or even stopped. In this case, the respiration of the plant may be dominant, as the plant needs to break down the organic matter stored in its body to obtain energy to do and sustain life activities. Therefore, the relative magnitude of photosynthesis and respiration in plants depends on a variety of factors, including light, temperature, plant species, and environmental influences.

Difference Between Photosynthesis and Respiration in Plants:

Photosynthesis is the absorption of solar energy by plants through chloroplasts, the conversion of carbon dioxide and water into organic matter, and the conversion of solar energy into bioenergy for storage in clean organic matter.

Site of photosynthesis: plant cell chloroplast;

Conditions for the action of photosynthetic answering sedan car: light, enzyme;

Raw materials for photosynthesis: water, carbon dioxide;

Yield of photosynthesis: organic matter such as sugars;

Energy change in photosynthesis: light energy is converted into chemical energy;

Site of respiration: mitochondria of animal and plant cells;

Conditions of respiration: enzymes;

Raw materials for respiration: organic matter such as sugars, oxygen;

Output of respiration: carbon dioxide, water, a lot of energy;

The energy change of respiration: stable chemical energy is transformed into active chemical energy;