Question

The arrangement of leaves on stems or their branches is ________.
1. Reticulate venation
2. Phyllotaxy
3. Parallel venation
4. Placentation

Answer 1

Correct Answer - Option 2 : Phyllotaxy

The correct answer is Phyllotaxy.

• The arrangement of leaves on stems or their branches is known as Phyllotaxy.
•  Phyllotaxy can be classified as either alternate, spiral, opposite, or whorled.

• Parallel venation is where the secondary veins run parallel to each other and are connected laterally by minute and straight veinlets. 
• Reticulate venation shows a network or web-like arrangement all over the leaf blade.
• Placentation refers to the formation, type, and structure, or arrangement of the placenta.
• The function of placentation is to transfer nutrients, respiratory gases, and water from maternal tissue to a growing embryo.