Question

Nodulose roots are recorded in
A) Mirabilis
B) Vanda
C) Momordica
D) Mango Ginger

Answer 1

Hint: Nodulose roots are special root structures present in certain plants. These roots become swollen at the tip due to accumulation of food.

Complete Answer:
To solve this question, we must know the structure and function of the nodulose root.
- Other than absorbing water and minerals from the soil sometimes roots perform other functions like fixation of minerals, food storage etc.
For example tuberous root of potato, root nodules in leguminous plants.
- Nodulose root is one such modification of the adventitious roots. Nodulose roots are the roots which swell up at the apex. The swelling is due to the accumulation of food.
For example Cucurma amanda or mango ginger.
- It is very similar to common ginger but has a raw mango flavour. It is used as spice and vegetable. It is mostly used in making pickles.

Fig: Nodulose root of Cucurma.

Mirabilis- It is a perennial herb with tuberous roots. Their roots are used in making ayurvedic medicine.
Vanda- These are the flowering plants commonly known as orchids. They have large aerial roots. They belong to the class of epiphytes.
Momordica- Roots of Momordica are adventitious roots which are modified for storage. The roots are moniliform or beaded at frequent intervals.

Thus the correct answer is (D) Nodulose roots are found in Mango Ginger.

Note: Roots are modified for additional function like storage, nutrient fixation, and mechanical support to the plants. Nodulose roots are the adventitious roots modified for storage of food.