Zusammenfassung der Ressource
Organic Substances in Cells
- Carbohydrates
- carbon + hydrogen + oxygen
- 3 groups
- monosaccharides
- simple carbohydrates
- glucose, fructose, galactose
- single units
- disaccharaides
- lactose, maltose, sucrose
- simple carbohydrates
- 2 units
- polysaccharides
- complex carbohydrates
- starch, cellulose, glycogen
- multiple units
- source of energy
- broken down to glucose
- stored as fat if not used
- Lipids
- carbon + hydrogen + oxygen
- fats, oils, waxes, steroids
- found in cell membranes
- used to store energy
- Proteins
- hydrogen + carbon + oxygen + nitrogen
- growth & repair
- form part of substances in body e.g. enzymes, blood
- built from amino acids
- linked by peptide bonds
- determine structure & function of cells
- Nucleic acids
- hereditary material
- contain nucleotides
- sugar
- phosphate
- base
- A+T
- G+C
- RNA - single strand of nucleotides
- found throughout cell
- manufacture of proteins
- DNA - double strand of nucleotides
- found in chromosomes