#3 Grade 12 University Biology Review

Terms to study !!! I am a strong visual learner so I posted some picture to help understand it.

RNA – stands for ribonucleic acid. It performs a variety of functions in the living cell but its primary function is in protein synthesis.

DNA – stands for deoxyribonucleic acid. It is the genetic substance of all living cells and viruses. It contains hereditary information.

mRNA – stands for Messenger RNA (ribonucleic acid). It is a molecule of RNA that serves as a template for protein synthesis.

Cytosol – is also known as intracellular fluid or cytoplasmic matrix. It is the liquid found inside of the cells.

Histone

Histones – is a protein which helps compact DNA inside a cell.

Vand der Waals Force – named after Johannes Diderik van der Waals. It is the attractions between atoms, molecules, and surfaces. His force is different from covalent or ionic bonding because Van der Waals interaction is the sum of the attractive or repulsive forces between molecules other than those due to covalent bonds or to the electrostatic interaction.

London Forces – is part of the Vand der Waals Force. It is the weakest intermolecular interaction including gases such as O2, N2, Ch4 and alkanes.

Somatic cell – are all the cells that build up an organism except the germ cells.

Eukaryote – is any cell or organism that possesses a well-defined nucleus. (Unlike prokaryote)

Prokaryote – or known as prokaryote is any single celled organism that lacks cell a nucleus enclosed in a membrane.