Prokaryotic Cells Definition Prokaryotic cells are single-celled organisms that lack a membrane-bound nucleus and other organelles, making them primitive in form and function. The name “prokaryote” comes from two Greek words: “pro” for “before” and “karyon” for “nucleus.” Prokaryotes, the simplest form of life, are thought to be the first living species on the planet. … Read more
Mitochondria Definition Mitochondria are oxygen-consuming ribbon-shaped cellular organelles that float freely within the cell. They are called as the “powerhouse of the cell” because they provide all of the cell’s biological energy by oxidising the available substrates. The mitochondrial enzymatic oxidation of chemical molecules releases energy. Because mitochondria serve as energy generators, they can be … Read more
Lysosomes Definition Lysosomes are dense granular membrane-bound structures that hold hydrolytic enzymes that are largely responsible for intracellular and extracellular digestion. The term “lysosome” is made up of two words: “lysis,” which means “breakdown,” and “soma,” which means “body.” It’s a crucial cell organelle that breaks down chemicals both within and outside the cell. Animal … Read more
Meiosis Definition In sexually reproducing eukaryotes, meiosis is a type of cell division that produces four daughter cells (gametes), each with half the number of chromosomes as the diploid parent cell. The haploid cells become gametes, which determine sexual reproduction and the birth of a new generation of diploid creatures by fusing with another haploid … Read more
Definition of Ribosomes The name ribosome is derived from two words: ribonucleic acid and ‘somes’, which is derived from the Greek word soma, which meaning “body.” Ribosomes are dense spheroidal particles with a diameter of 150 to 200 A0 found in most bacterial and eukaryotic cells. Protein synthesis takes place at these locations. They’re RNA … Read more
What Exactly is Telophase? Telophase is the fifth and last phase of mitosis, as well as the final phase of meiosis. Telophase I and telophase II are the two phases of meiosis. This is the step in which duplicate genetic components carried in the parent cells’ cell nuclei are separated. They produce two identical daughter … Read more
Glycolysis Definition Glycolysis is the main pathway for glucose catabolism, in which glucose (6-carbon component) is transformed to pyruvate (3-carbon compound) in a ten-step process. Glycolysis is the initial stage in the glucose metabolism process in both aerobic and anaerobic organisms. The mechanism of control and the following metabolic destiny of the pyruvate generated at … Read more
Vacuoles Definition: A vacuole is a film-bound organelle that is available in all plant and contagious cells and some protist, creature, and bacterial cells. The most prominent compartment in most plant cells is an extremely huge, liquid-filled vacuole. Huge vacuoles are likewise found in three genera of filamentous sulfur microorganisms, the Thioploca, Beggiatoa, and Thiomargarita. … Read more
What is Interphase / Interphase Definition? Interphase: Cell division is a continual process in which daughters cells emerge, develop, and create their own daughter cells, and the cycle continues. Cell growth and cell division are two events that occur during the cell cycle, with the interphase defining the phase of cell expansion during which various … Read more
Definition of Anaphase This is the phase in which the two identical daughter cells are separated from duplicate genetic components carried in the nucleus of the parent cell. The sister chromatids (replicated chromosomes) are oriented along the cell’s equator on the metaphase plate in the preceding phase, metaphase. As a result, each pair of chromosomes … Read more