1.what kind of tissue present in plant.
2.notes on xylem and pholem in details
Answers
Answer:
1. In plant there are 4 kinds of tissue are there. they are : meristamatic tissue, deraml tissue, ground tissue, vacoules tissue
Answer:
1.Plant consists of plant tissues which can be classified into two categories in the basis of their cell division capability:
*Meristematic tissues:Can do cell division.
*Permanent tissues: Cant do cell division.
2.The phloem carries important sugars, organic compounds, and minerals around a plant. Sap within the phloem simply travels by diffusion between cells and works its way from leaves down to the roots with help from gravity. The phloem is made from cells called ‘sieve-tube members’ and ‘companion cells’.
The xylem is responsible for keeping a plant hydrated. Xylem sap travels upwards and has to overcome serious gravitational forces to deliver water to a plant’s upper extremities, especially in tall trees.
Two different types of cells are known to form the xylem in different plant groups: tracheids and vessel elements. Tracheids are found in most gymnosperms, ferns, and lycophytes whereas vessel elements form the xylem of almost all angiosperms.
Xylem cells are dead, elongated and hollow. They have secondary cell walls and ‘pits’ (areas where the secondary cell wall is missing).