Class 11 NEET Biology Plant Kingdom Questions Part 1

(a) : Flagellation is the arrangement of flagella over the body surface of a bacterial cell. Peritrichous flagellation has flagella all over the surface of a bacterial cell e.g. E. coli. Ginkgo belongs to Order Ginkgoales of gymnosperms. It is called living fossil because it is the single living genus in a big fossilized order. Macrocystis belongs to Class Phaeophyceae. It is the largest perennial alga, about 40-60 m in size. Wolffia a is the smallest flowering plant. Rhizophore is a leafless, colourless, positively geotropic elongated structure that grows down from the point of bifurcation of stem. It occurs in Selaginella.