Question
Explain the types of complex permanent tissues.
✓
Answer
Name of tissue | Xylem | Phloem |
Characteristics | Consists of thick-walled dead cells | Consists of cytoplasm containing living cells. |
Types of cells | Tracheids, vessels and xylem fibres – dead cells. Xylem parenchyma – living cells. | Sieve tubes, companion cells, phloem parenchyma – living cells. Phloem fibres – dead cells. |
Function | A structure like interconnected tubes, conduct water and minerals only in upward direction. | Tubes joined to each other, conduct sugar and amino acids from leaves to various parts in upward and downward direction |
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