HEXOKINASE (I, II & III) vs. GLUCOKINASE (IV)Tissue distribution • Hexokinase - Skeletal muscle (most common example even though it occurs throughout most of the body) • Glucokinase - The liver - The pancreas (its beta cells) - Less notably, also
Nucleosides • Comprise a sugar and a baseNucleotides • Phosphorylated nucleosides (at least one phosphorus group) • Link in chains to form polymers called nucleic acids (i.e. DNA and RNA)N-beta-glycosidic bond • Links nitrogenous base to suga
There are two main classifications for cellular life: Prokaryotes, which are single-celled organisms without a nucleus and Eukaryotes, which are organisms whose cells have a nucleus.Prokaryotes, whose estimated biomass is more than ten times greater
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