Multiple choice The parenchyma having many spiny projections is Vascular parenchyma Armed parenchyma Medullary parenchyma Conjunctive parenchyma Reveal answer Fill a bubble to check yourself B Correct answer Explanation Armed parenchyma is the parenchyma, which is found in the epidermis of leaves, in some gymnosperms. The cells have many spiny projections. It is defensive in function.