Question

Monera is divided into archaebacteria and eubacteria.
A. True
B. False

Answer 1

Prokaryotic cell organization that lacks nuclear membrane such as bacteria are placed in the kingdom Monera. Kingdom Monera consists of all unicellular prokaryotic microorganisms. Prokaryotic organisms are single-celled organisms.

Complete answer:
Kingdom Monera is one of the five kingdoms classified by R.H. Whittaker in the year 1969. Bacteria is a prokaryote that is devoid of well-defined nuclei and lacks membrane-bound organelles. The bacterial cell consists of a chromosome having circular double-stranded DNA molecules. Some species of bacteria are useful whereas some species of bacteria are harmful.

The kingdom Monera is broadly classified into two groups called archaebacteria and eubacteria. Methanogen is a single-celled organism that belongs to the archaea group and is known as archaebacteria. They are commonly found in wetlands and are responsible for the marsh gas present in that region. They are also present in the digestive tracts of herbivores(ruminants) which are responsible for the belching of methane content. Methanogens produce metabolic byproducts as methane in hypoxic conditions. Lactobacillus is eubacteria present in milk and milk products.

So, option A is the correct option.

Note: All bacteria are placed under the Kingdom Monera. However, cyanobacteria is an exception as it is placed in the kingdom Plantae due to its ability to photosynthesize. Bacterial cells can be further classified as aerobic bacteria and anaerobic bacteria. Various species of bacteria are symbiotic in nature. Bacterial cells can grow rapidly and increase in number quickly. Some species of bacteria reproduce by budding which involves the formation of protrusion that breaks and falls off to produce a daughter cell.