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TLS Online TPP Program

#Id: 7899

Only 22 tRNAs are required for mitochondrial protein synthesis. The normal codon–anticodon pairing rules are relaxed in mitochondria, so that many tRNA molecules recognize any one of the four nucleotides in the third (wobble) position, allowing four codons to be recognized by a single tRNA.

#Unit 2. Cellular Organization #Mitochondria #Part B Pointers
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TLS Online TPP Program

#Id: 8107

#Unit 1. Structure and Function of Biomolecules

Phosphate is often the limiting plant nutrient in soil, and perhaps the evolutionary pressure to conserve phosphate for more critical roles favored plants that made phosphate-free lipids.
TLS Online TPP Program

#Id: 8108

#Unit 1. Structure and Function of Biomolecules

A typical membrane lipid of archaea.

Diphytanyl moieties are 8 five-carbon isoprene groups condensed end-to-end.
TLS Online TPP Program

#Id: 8109

#Unit 1. Structure and Function of Biomolecules

TLS Online TPP Program

#Id: 8110

#Unit 1. Structure and Function of Biomolecules

Archaea membrane lipids are isoprene-based lipids.
TLS Online TPP Program

#Id: 8111

#Unit 1. Structure and Function of Biomolecules

TLS Online TPP Program

#Id: 8112

#Unit 1. Structure and Function of Biomolecules

The amino group at C-2 bears a fatty acid in amide linkage.

The fatty acid is usually saturated or monounsaturated, with 16, 18, 22, or 24 carbon atoms.

Ceramide is the parent compound for this group.