1, the basic elements of plant life activities

Photosynthesis: Chlorophyll in chloroplasts absorbs solar energy, and water reacts with carbon dioxide to produce oxygen and glucose.

Respiratory function: intracellular aerobic respiration releases energy, absorbs oxygen and discharges carbon dioxide.

Water absorption: root hairs absorb water in the soil, and water is transported through roots, stems and leaves.

Nutrient absorption: inorganic salts and mineral elements are absorbed from soil to form organic matter in plants.

2. Regulation of external environment on plant life activities

Light regulation: plants' perception of light intensity and time, and the photoperiod requirements of long-day plants and short-day plants.

Temperature regulation: the influence of temperature on the rate of photosynthesis and the plant species that adapt to different climatic conditions.

Water regulation: plants' demand for water and transpiration adapt to different humidity and water content environments.

Soil texture and nutrient regulation: plant roots adapt to soil texture and absorb different nutrients to meet growth needs.

3. Physiological regulation mechanism of plants.

Hormone regulation: auxin promotes cell division and elongation, gibberellin regulates plant growth and development, and the role and regulation of environmental hormones.

Optical signal transduction: the perception and transmission of light signals by plants, the shape of light and the growth direction of plants.

Regulation of water balance: the opening and closing of stomata controls water transpiration, and root pressure regulates water transport in plants.

4. Periodic regulation of plant life activities

Seasonal growth regulation: flowering in spring, fruiting in summer, dormancy in autumn, and adaptive strategies of plants to seasonal changes.

Age-related growth regulation: the seedlings grow vigorously and slow down after maturity.

5. The adjustment and utilization of plants by human beings.

Plant control in agricultural production: agricultural techniques such as fertilization, watering and irrigation, and breeding of high-yield and early-maturing varieties.

Supervision of gardening and landscape plants: pruning, modeling, propagation and other gardening techniques to build a beautiful plant landscape.

The life activities of plants are influenced by complex internal and external regulatory mechanisms. These regulatory mechanisms ensure the adaptive survival and reproduction of plants under different environmental conditions. Understanding the regulation mechanism of plant life activities will help people make better use of plant resources and promote the development of agriculture, horticulture and landscape design.