An organic compound involved in the citric acid cycle, playing a role in cellular respiration.

A specific group of atoms within a molecule that is responsible for a characteristic chemical reaction.

Relating to fungi, a group of eukaryotic organisms that includes yeasts, molds, and mushrooms.

A type of organism that includes molds, yeasts, and mushrooms, which are decomposers or parasites.

A stalk that connects the seed to the ovary in some plants, often referring to the attachment of seeds to the fruit.

A cyclic sugar structure in which the sugar forms a five-membered ring, often found in fructose and ribose.

A forked structure, such as the wishbone in birds, or a part of the anatomy in certain insects and other animals.

Cells in plants that are responsible for producing secondary xylem and phloem, often found in vascular cambium.

The process by which two or more entities merge into one, often referring to the joining of cells or nuclei in biological systems.

The first phase of the cell cycle, during which the cell grows and prepares for DNA replication.