write the process of transportation of substances in plants
Answers
Circulatory System
Pulse and Blood Pressure
Excretory System
plants have an autotrophic mode of nutrition. By taking in carbon dioxide from the air, minerals, and water from the soil, plants make their own food. After that, they release oxygen and water vapor. This process is Photosynthesis.By this process, plants synthesize their food in the leaves. For trees, leaves are considered to be food factories.
Xylem: It is a vascular tissue that spreads from the top to bottom of the plant. For the transport of water molecules, it helps a lot. It also plays a vital role in case of dissolved substances from the root hairs to aerial parts of the plant. It transfers water in one direction. Commonly, xylem occupies the central part of the vascular bundle. It mainly includes different types of cells such as tracheid, vessels, and xylem parenchyma and xylem fibres.
Phloem: It is also a vascular tissue. In a plant where the necessity of food molecules is there, by the use of phloem transportation process will take place. Some elements are there in the phloem such as sieve elements, phloem parenchyma, fibres and companion cells.