Introduction to Kingdom Plantae - Practice Questions & MCQ

• The Kingdom Plantae includes all eukaryotic chlorophyll-containing organisms having prominent chloroplasts and cellulosic cell walls.
• Mode of nutrition is mainly autotrophic. It occurs through the process of photosynthesis. 
• However, some plants have heterotrophic mode of nutrition, such as Cuscuta which is a parasitic plant. The insectivorous plants like Venus Fly Trap are partially heterotrophic.
• The reserve food material is starch.
• Ecologically, they act as producers in an ecosystem.

Major groups of Kingdom Plantae:

An outline of plant classification is as follows: 
                         

• All plants are divided into two broad groups i.e. cryptogams and Phanerogamae
• Cryptogams include all plants that do not form seeds while phanerogams include plants with seeds. 
• Cryptogamae includes Thallophyta, Bryophyta and Pteridophyta while Phanerogamae includes gymnosperms and angiosperms. 

Thus, the major groups are:

1. Thallophyta / Algae
2. Bryophyta
3. Pteridophyta
4. Gymnosperms
5. Angiosperms