Question

Match the following and select the correct combination from the options given below.

	Column I (Stem modifications)		Column II (Found in)
A.	Underground stem	1.	Euphorbia
B.	Stem tendril	2.	Opuntia
C.	Stem thorns	3.	Potato
D.	Flattened stem	4.	Citrus
E.	Fleshy cylindrical stem	5.	Cucumber

• A. A- 1, B- 2, C- 3, D- 5, E- 4
• B. A- 2, B- 3, C- 4, D- 5, E- 1
• C. A- 3, B- 4, C- 5, D- 1, E- 2
• D. A- 3, B- 5, C- 4, D- 2, E- 1
• E. A- 5, B- 3- C- 4, D- 1, E- 2

Answer 1

The correct option is D A- 3, B- 5, C- 4, D- 2, E- 1

Some underground stems are modified for storage of food such as potato, ginger, turmeric etc. In some plants, axillary buds produce stem tendrils are spirally coiled and help plants to climb in gourds such as cucumber, pumpkins, watermelon and grapevines. In some plants, axillary buds get modified into woody and pointed thorns which protect the plant from animals. Thorns are found in many plants such as citrus, Bougainvillea. Some plants of arid regions modify their stems into flattened (Opuntia), or fleshy cylindrical (Euphorbia) structures. They contain chlorophyll and carry out photosynthesis.

Thus, the correct answer is option D.