Primary = sequence where amino acids link together to form the polypeptide chain.
Secondary = repetitive twisting of the chain. The two types are helices and pleated sheets, held together by hydrogen bonds between oxygen or nitrogen atoms.
Tertiary = overall 3D structure of the chian. The folding unrepetiive or predictable, involves several interactions between various amino acid side groups in the chain.
Quaternary = 2+ individual chains (subunit), operates as single unit,
Deoxyribose sugar vs ribose,
Double strand vs single strand nucleotides,
Double helix with hydrogen bonds vs linear strand with no hydrogen bonds,
Found in nucleus vs in nucleus and cytoplasm,
Controls cell activites vs make proteins.
Larger vs smaller
DNA in nucleus vs DNA free floating
Cell wall has no peptidoglycan vs cell wall has peptidoglycan
Simple or absent cell wall vs 99% have cell walls
Mitosis vs Binary Fusion
Flagella inside cell, whips vs Flagella outside cell, spirals
Cilia vs No cilia
Prokaryotic use fimbriae for adhesion
anchored in cell membrane, primary use is for movement.
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