Botany - Plant Kingdom Question with Solution | TestHub

Flagellation is the arrangement of flagella over the body surface of a bacterial cell. Peritrichous bacteria has flagella all over the surface of cell e.g., E. coli. Ginkgo biloba is called living fossil because it is the single living genus in a big fossilised order Ginkgoales. Rhizophore is a leafless, colourless, positively geotropic elongated structure that grows down from the point of bifurcation of stem. It occurs in Selaginella. Wolffia is a hydrophyte and the smallest angiosperm. Macrocystis belongs to class Phaeophyceae. It is the largest perennial alga, about $40-60\mathrm{m}$ in size.