Glossary

An A-Z of keywords and phrases, all of which are relevant to the post-16 biology curriculum.

 

A B C D E F G H I J K L M N O P Q R S T U V W Y Z
Undergraduate qualification

A course that leads to a Bachelor’s degree (or equivalent). In England, Wales and Northern Ireland, many students start undergraduate degrees at university at 18 after completing A levels or the International Baccalaureate. In Scotland, most students start university at 17 and complete an extra year. Someone studying at this level can be known as an undergrad.

Unicellular

An organism that consists of only one cell.

Unipotent

The ability to give rise to only one cell type.

Unsaturated fat

Fat molecules that contain one or more double bonds between their carbon atoms. Although they are considered healthier than saturated fats, they should still be eaten in moderation.

Up-regulation

The increase in production of a chemical in the body, often in response to a specific stimulus. For example, histamine is up-regulated when you are stung by a bee.