3 Questions
What are mineral salts and why are they important for green plants?
Mineral salts are inorganic nutrients that plants absorb from the soil through their roots. They are important for green plants because they are essential for various biochemical processes such as photosynthesis, cell division, and growth.
How do green plants obtain mineral salts?
Green plants obtain mineral salts by absorbing them from the soil through their roots. The roots have specialized structures called root hairs that increase the surface area for absorption.
What are some specific roles of mineral salts in green plants?
Mineral salts have various roles in green plants. They are involved in the formation of chlorophyll, which is essential for photosynthesis. They also help in maintaining the osmotic balance of plant cells, contribute to the formation of proteins and enzymes, and assist in the transportation of nutrients within the plant.
Study Notes
Mineral Salts in Green Plants
- Mineral salts are inorganic substances essential for plant growth and development, derived from soil or water.
Obtaining Mineral Salts
- Green plants obtain mineral salts through their roots, which absorb them from the surrounding soil or water.
- Plants can also obtain mineral salts through foliar absorption, where they absorb minerals from dew, mist, or fertilizers sprayed on their leaves.
Roles of Mineral Salts
- Macronutrients (e.g., nitrogen, phosphorus, potassium) are essential for photosynthesis, protein synthesis, and cell wall development.
- Micronutrients (e.g., iron, zinc, copper) play critical roles in enzyme function, electron transfer, and cell wall structure.
- Mineral salts help regulate water balance, maintain turgor pressure, and facilitate nutrient transport within the plant.
- They also help protect plants from disease and stress by activating defense mechanisms and antioxidant systems.
Test your knowledge on the importance of mineral salts for green plants with this biology exam for class 7. Explore the definition of mineral salts and discover their essential role in the growth and development of green plants. Learn how green plants obtain these vital nutrients and uncover the specific functions of mineral salts within the plant's biology.
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