SSC MTS EXAM

Detailed explanation-1: -There are two basic types of cells: prokaryotic cells, which lack a nucleus, and eukaryotic cells, which contain a nucleus. Prokaryotic cells are found in single-celled organisms, such as bacteria. Eukaryotic cells are found mainly in multicellular organisms.

Detailed explanation-2: -Eukaryotic cells contain membrane-bound organelles, such as the nucleus, while prokaryotic cells do not. Differences in cellular structure of prokaryotes and eukaryotes include the presence of mitochondria and chloroplasts, the cell wall, and the structure of chromosomal DNA.

Detailed explanation-3: -Prokaryotes are divided into two distinct groups: the bacteria and the archaea, which scientists believe have unique evolutionary lineages. Most prokaryotes are small, single-celled organisms that have a relatively simple structure.

Detailed explanation-4: -Cells fall into one of two broad categories: prokaryotic and eukaryotic. The single-celled organisms of the domains Bacteria and Archaea are classified as prokaryotes (pro = before; karyon– = nucleus). Animal cells, plant cells, fungi, and protists are eukaryotes (eu = true).