Microtubule Definition The microtubules in a cell’s cytoskeleton are microscopic hollow tubes made of the proteins alpha and beta tubulin. This cytoskeleton gives the cell shape and keeps its organelles in place by creating a network of protein filaments. A microtubule measures about 24 nanometers thick, which makes them the largest structure in the cytoskeleton. … Read more
All cells on Earth can be divided into two types: prokaryotes and eukaryotes. Prokaryotes are always unicellular organisms and may be bacteria or archaea. Eukaryotes may be unicellular or multicellular and include plants, animals, fungi, and protists are all made up of eukaryotic cells. Eukaryotic cells are much larger and more complex than prokaryotes and … Read more
Anabolism and catabolism are the two types of biochemical reactions that make up the metabolism. Anabolic reactions involve the building of larger, complex molecules from smaller, simpler ones, and require an input of energy. Catabolic reactions are the opposite of anabolic reactions, and break the chemical bonds in larger, more complex molecules. This process releases energy … Read more
Supine Position Definition In anatomy and medicine, the supine position refers to an organism lying on its back. Any organism with clearly defined ventral and dorsal sides can be described in this way. Supine means lying on one’s back with the dorsal side towards the ground. Supine Position Explained Due to the dorsal side pointing … Read more