Question

Banana and ginger are:

• A. Rhizome
• B. Tuber
• C. Bulb
• D. Corm

Answer 1

The correct option is A Rhizome

Underground modification of stem generally occur for food storage and vegetative propagation. There is various type of modification:

• Rhizome - It is fleshy and horizontally found below in soil small nodes and internodes are found which are covered by scaly leaves. For example: Ginger, turmeric and banana.
• Tuber - The tips of branches become swollen in the soil. Eyes are found on them which are axillary buds and covered with scaly leaves. For example: Potato.
• Bulb - This stem has disc like structure and surrounds with numerous fleshy scaly leaves. Many roots arise from its base. For example: Onion, garlic.
• Corm - It is condensed structure which grows vertically under the soil surface. For example: Colocasia, zaminkand.