Phloem is a complex tissue of the angiosperm plants. It serves as a conducting tissue and is made up of four types of elements: (i) Sieve tube; (ii) Companion cells; (iii ) Phloem fibres (bast fibres), and (iv) Phloem parenchyma
Phloem is a complex tissue of the angiosperm plants. It serves as a conducting tissue and is made up of four types of elements: (i) Sieve tube; (ii) Companion cells; (iii ) Phloem fibres (bast fibres), and (iv) Phloem parenchyma
In multicellular organisms there are millions of cells. Most of these cells are specialised to carry out a few functions. Each specialized function is taken up by a different group of cells or tissues. Since these cells of a tissue carry out only a particular function, they do it very efficiently. FRead more
In multicellular organisms there are millions of cells. Most of these cells are specialised to carry out a few functions. Each specialized function is taken up by a different group of cells or tissues. Since these cells of a tissue carry out only a particular function, they do it very efficiently. For example, in human beings, muscle cells contract and relax to cause movement, nerve cells carry messages and blood flows to transport oxygen, food, form ones and waste materials and so on. Likewise, in plants, vascular tissues (xylem, phloem) conduct water and food from one part of the plant to other parts. So, multicellular organisms show division of labour.
What are the constituents of phloem?
Phloem is a complex tissue of the angiosperm plants. It serves as a conducting tissue and is made up of four types of elements: (i) Sieve tube; (ii) Companion cells; (iii ) Phloem fibres (bast fibres), and (iv) Phloem parenchyma
Phloem is a complex tissue of the angiosperm plants. It serves as a conducting tissue and is made up of four types of elements: (i) Sieve tube; (ii) Companion cells; (iii ) Phloem fibres (bast fibres), and (iv) Phloem parenchyma
See lessWhich tissue makes up the husk of coconut?
Sclerenchymatous fibres.
Sclerenchymatous fibres.
See lessWhere is apical meristem found?
Apical meristem is found in shoot apex and root apex of an angiospermic plant.
Apical meristem is found in shoot apex and root apex of an angiospermic plant.
See lessName three types of simple tissues.
Three types of simple tissues of plants are: 1. Parenchyma 2. Collenchyma; and 3. Sclerenchyma.
Three types of simple tissues of plants are: 1. Parenchyma 2. Collenchyma; and 3. Sclerenchyma.
See lessWhat is the utility of tissues in multicellular organisms?
In multicellular organisms there are millions of cells. Most of these cells are specialised to carry out a few functions. Each specialized function is taken up by a different group of cells or tissues. Since these cells of a tissue carry out only a particular function, they do it very efficiently. FRead more
In multicellular organisms there are millions of cells. Most of these cells are specialised to carry out a few functions. Each specialized function is taken up by a different group of cells or tissues. Since these cells of a tissue carry out only a particular function, they do it very efficiently. For example, in human beings, muscle cells contract and relax to cause movement, nerve cells carry messages and blood flows to transport oxygen, food, form ones and waste materials and so on. Likewise, in plants, vascular tissues (xylem, phloem) conduct water and food from one part of the plant to other parts. So, multicellular organisms show division of labour.
See less