Nuclear membrane is absent in
Show Hint
Prokaryotes are unicellular organisms that are not made up of cellulose. The cell organelles and well-defined nucleus are absent in these organisms.
- Monera
- Protista
- Fungi
- Plantae
The Correct Option is A
Solution and Explanation
Nuclear membrane is absent in Monera.
A moneran cell is microscopic and does not possess a well-defined nucleus. The genetic material is not enclosed in a cell nucleus, eg, in prokaryotes like archaebacteria and eubacteria. Other membrane-bound cell organelles like mitochondria, Golgi apparatus and chloroplast are also absent. Monera is unicellular, prokaryotic organism whose cell wall is not made up of cellulose. Cyanobacteria, mycoplasma are examples of Monera.
Also Read: Cell Organelles
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Concepts Used:
Biological Classification
The process of grouping living organisms into categories is called biological classification. The most modern 5-kingdom classification was put ahead by an eminent scientist R.H.Whittaker. The five-kingdom classification is based on the criteria like cell structure, mode of nutrition, body form, and reproduction. One of the most important characteristics of this system is that it follows the evolutionary sequence of living organisms. The organisms are classified into distinct taxa or levels like Kingdom, Phylum, Division, Class, Order, Family, Genus, and Species. The 5 kingdoms are as follows:
