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Cheatography

Biological molecules - carbohydrates Cheat Sheet (DRAFT) by

CN, 2.1.2: Biological molecules Part 1 - Introduction, water and carbohydrates

This is a draft cheat sheet. It is a work in progress and is not finished yet.

Keywords:

Hydrop­hillic - Molecule that can interact with or dissolve in water
Hydrop­hobic - Cannot interact with water and repels it
Polar covalent bond - When the electrons in a covalent bond are not shared equally. The resulting separation of charge gives one end of the bond a slightly negative charge and the other a slightly positive charge
Hydrogen bond - This is a type of weak interm­ole­cular force. It is formed between a hydrogen atom that’s covalently bonded to an oxygen­/ni­trogen atom in one molecule and an oxygen­/ni­trogen atom in another molecule
Catabolic reaction - Large molecules are broken down into smaller ones
Anabolic reaction - Build complex molecules from simple ones
Monomer - A molecule that can be bonded to other identical molecules to form a polymer
Polymer - Any of a class of natural or synthetic substances composed of very large molecules, which are multiples of similar chemical units called monomers
Disacc­haride - The sugar formed when two monosa­cch­arides are joined by glycosidic bonds
 

Elements found in the main biological molecules

Biological molecule
Carbon
Hydrogen
Oxygen
Nitrogen
Phosphorus
Sulphur
Carboh­ydrates
x
x
x
Proteins
x
(✓)
Lipids
x
(✓)
x
Nucleic acids
x
Water
x
x
x
x