What are the internal and external factors that affect photosynthesis? What is the essence of photosynthesis?

Photosynthesis is the only process on earth that converts inorganic matter into organic matter and light energy into chemical energy on a large scale. Photosynthesis is a giant energy conversion process, an important way to convert inorganic matter into organic matter, and an important means to regulate the nitrogen and oxygen balance in the atmosphere. It is of great significance to the survival and development of the entire biological world and human beings, as well as to maintain the ecological balance of nature. Let's explore the internal and external factors that affect photosynthesis.

Contents of this article

1. What are the internal and external factors that affect photosynthesis?

2. What is the essence of photosynthesis?

3. What does photosynthesis intensity mean?

What are the internal and external factors that affect photosynthesis?

Internal causes:

1. Types and quantities of chloroplast pigments.

2. Type, activity and amount of enzymes.

3. The amount of ATP, etc.

External factors:

1. The amount and concentration of carbon dioxide.

2. Water content.

3. Sunshine.

4. Suitable temperature.

5. Essential mineral elements, etc.

Photosynthesis: the synthesis of light energy, is a biochemical process in which plants, algae and some bacteria, under the irradiation of visible light, use photosynthetic pigments to convert carbon dioxide and water into organic matter and release oxygen through light and dark reactions. It is the sum of a series of complex metabolic reactions, the basis for the survival of the biological world, and an important medium for the earth's carbon-oxygen cycle.

What is the essence of photosynthesis?

It is essentially the process by which green plants use the sun's light energy to assimilate carbon dioxide and water, produce organic matter and release oxygen. The organic matter produced by photosynthesis is mainly carbohydrates, and it releases energy. Photosynthesis is the only process on earth that converts inorganic matter into organic matter and light energy into chemical energy on a large scale. Photosynthesis is a giant energy conversion process, an important way to convert inorganic matter into organic matter, and an important means to regulate the balance of nitrogen and oxygen in the atmosphere. It is of great significance to the survival and development of the entire biological world and human beings, as well as to maintain the ecological balance of nature.

What is photosynthesis intensity?

Photosynthesis intensity refers to the amount of carbon dioxide assimilated by plants per unit time and per unit area under light, and the common unit is mg of carbon dioxide/square decimeter/hour. The actual photosynthesis intensity is the amount of carbon dioxide actually assimilated by plants under light, but plants also breathe during photosynthesis and release carbon dioxide at the same time. Therefore, what is measured is generally surface photosynthesis or net photosynthesis, which is the amount of carbon dioxide assimilated by actual photosynthesis minus the amount of carbon dioxide released by respiration. The photosynthesis intensity generally refers to the net photosynthesis intensity.