Question: Which part of the root absorbs water and minerals?
Options:
(a) Root cap
(b) Root hairs
(c) Epidermis
(d) Endodermis
📌 Other Options Explanations:
Root cap:Protects the root tip as it grows through the soil.
Epidermis:The outer layer of the root, but its primary function is protection.
Endodermis:An inner layer of the root that regulates the movement of substances into the vascular system.
🔑Key Points :
-Roots are underground structures.
-It helps in water transport.
-The plant absorbs water and minerals from the soil through root hairs and transports them through Xylem.
-Xylem conducts water and minerals to stem and leaves.
-Xylem consists of tracheids, fibres, parenchyma and vessels.
-Only the parenchyma cell is living and stores food and tannins.
-Vessels, tracheids and fibres are dead and help in the conduction of water.
• 🛑Additional Information:
• Pith:
-It is a vascular tissue found in the stem and roots.
-It is present in the centre.
-It is formed of parenchymatous cells.
-It helps in the storage of food.
• Cortex:
-It is ground tissue.
-It is present in the epidermis and vascular bundles.
-It is made of parenchymatous cells.
-It helps in providing support to the plant.
• Phloem:
-It is a vascular tissue.
-It consists of sieve tubes, parenchyma, fibres and companion cell.
-Only fibres are dead.
-Sieve tubes, parenchyma and companion cells are living cells.
-It helps in the transport of sucrose.