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TLS Online TPP Program

#Id: 8131

In most mammalian tissues, ubiquinone (also called coenzyme Q) has 10 isoprene units.
Dolichols of animals have 17 to 21 isoprene units (85 to 105 carbon atoms), bacterial dolichols have 11, and those of plants and fungi have 14 to 24.

#Section 2: General Biology #Lipid #Part B Pointers
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TLS Online TPP Program

#Id: 9282

#Section 2: General Biology

Plant genes expressed early, or in the absence of bacterial infection, are termed “early nodulins” or ENOD
TLS Online TPP Program

#Id: 9283

#Section 2: General Biology

Three factors are important in maintaining low O2 concentrations in nodules. 
First, entry of O2 into the nodule is controlled by a variable‐permeability barrier in the nodule parenchyma
TLS Online TPP Program

#Id: 9284

#Section 2: General Biology

O2‐binding plant protein Lb plays an active role in regulating and delivering O2 in the infected cells
Bacterial respiration is the major O2 sink
TLS Online TPP Program

#Id: 9285

#Section 2: General Biology

O2‐sensitive hemoprotein kinase FixL controls a regulatory cascade that activates transcription of nitrogen fixation genes
TLS Online TPP Program

#Id: 9286

#Section 2: General Biology

Plant glutamine synthetase (GS) and NADH‐dependent glutamate synthase (NADH‐GOGAT) are responsible for the initial massimilation of ammonia into organic compounds
TLS Online TPP Program

#Id: 9287

#Section 2: General Biology