Cell theory, prokaryotic and eukaryotic cells

Introduction The formation of proteins takes place when amino acids link together, where each protein has a unique amino acid sequence and characteristic. To get an idea for the diversity of the proteins that can be formed with the use of 20 dissimilar amino acids, consider that the amount of several combinations possible with 20 […]

Small, flat cells that resemble fish scales are found in the tissue that forms the skin’s surface as well as in the linings of hollow organs, including the lungs and digestive tracts. Squamous cells are also found in the lining of the respiratory and digestive tracts. Squamous cell carcinomas account for the majority of cancers

Introduction Protists comprise a huge collection of unicellular and multicellular organisms that have a nucleus. They also possess highly specialized cellular organs called cell organelles that help in performing various life processes. Most protists are free-living autotrophs (such as algae) while others are heterotrophic (such as amoeba) or even parasitic (such a Trypanosoma protozoa). Protists have

In bacteria and palaeontology, structural proteins with related functions (such as  genes encoding enzymes that catalyse  many steps in a single biochemical pathway) are usually coded together within a block within a block called an operon. And one individual promoter. This results in the formation of polycistronic transcripts. Since all of these structural genes are

The properties of protein ridges that have evolved in response to the physiological context of living cells are referred to as protein quinary structures. Quinary structure, in addition to differences, secondary, tertiary, and quaternary structures, is the fifth level of protein complexity. Unlike the previous four levels of protein structure, which apply to isolated proteins

The properties of protein ridges that have evolved in response to the physiological context of living cells are referred to as protein quinary structures. Quinary structure, in addition to differences, secondary, tertiary, and quaternary structures, is the fifth level of protein complexity. Unlike the previous four levels of protein structure, which apply to isolated proteins

Protista is a single-celled organism with a very simple cellular structure. It is one of Robert Whittaker’s five kingdoms, which he presented in 1969. Antoni van Leeuwenhoek discovered it in pond water 300 years ago. The basic unit of the food chain is the protist. It is a eukaryote with a membrane-bound nucleus that thrives

Protists are single-celled organisms that cannot be seen with the naked eye. They are classified as eukaryotes, which are not fungi, plants, or animals, and are members of the kingdom Protista. Some protists have a cell wall, whereas others do not. There are autotrophic, heterotrophic, parasitic, and saprotrophic protists. They generate gametes for sexual reproduction

Throughout all three domains of life, the cytoskeleton is a network of intracellular filaments that is critical for cell shape, division, and function, among other things. The simple cytoskeletons of prokaryotes are surprisingly adaptable in terms of composition, with none of the core filament-forming proteins being conserved across all evolutionary lines. In contrast, the eukaryotic

Prokaryotic cells are single-celled microorganisms that have been identified as the most ancient on the planet. Bacteria and Archaea are examples of prokaryotes. Cyanobacteria, which are photosynthetic prokaryotes, are among those that perform photosynthesis. A prokaryotic cell is made up of a single membrane, and as a result, all of the reactions take place within