Hydrophilic

Hydrophilic

Hydrophilic Definition A hydrophilic molecule or substance is attracted to water. Water is a polar molecule that acts as a solvent, dissolving other polar and hydrophilic substances. In biology, many substances are hydrophilic, which allows them to be dispersed throughout a cell or organism. All cells use water as a solvent that creates the solution … Read more

Ovipositor

Ovipositor

Ovipositor Insects and most fish use ovipositors to deposit eggs. Different species have different ovipositor morphologies. The exoskeleton of insects is usually composed of hardened sclerites and can be long, short, wide or needle thin. The ovipositor is often hidden within the body and protracted to be used, although sometimes it extends permanently outside the … Read more

Cell Division

Cell Division

Cell Division Definition In order to divide, cells go through a process called cell division. Depending on the type of organism dividing, there are several types of cell division. Over time, organisms have evolved different and more complex ways to divide their cells. Prokaryotes, or bacteria, divide their cells by binary fission.  Mitosis is used … Read more

Metaphase

Metaphase

Metaphase Definition In eukaryotic cell division, metaphase occurs when the chromosomes align on the metaphase plate. Metaphase occurs after prophase and prometaphase. During these stages of cell division, the chromosomes are condensed, the spindle fibers are formed, and the nuclear envelope is broken down. A series of checkpoints ensure that the spindle has formed during … Read more