Explain how mass spectrometry (MS) has aided in the progression of the field of metabolomics
What will be an ideal response?
Answer: Due to the complex nature of all possible chemical structures, metabolomics requires a highly sensitive instrument to identify each individual metabolite with high accuracy and precision. The field of metabolomics has greatly increased due to powerful MS approaches being used today. The capabilities of MS instruments such as a MALDI-TOF-MS permit the identification of many metabolites from a sample with high mass resolution when compared to older methods using NMR.
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Increased rate of photosynthesis is the most likely explanation as to why atmospheric CO2 levels appear lowest during glacial periods of Earth's history
A. true B. false
Members of this lineage are highly active, have a closed circulatory system, and have a high oxygen
requirement.
a. Cephalopoda b. Polyplacophora c. Bivalvia d. Gastropoda e. Scaphopoda
In which of the following does the environment play a causal role?
A. Marfan syndrome B. Cystic fibrosis C. Dog coat color D. Sickle-cell anemia E. Depression and schizophrenia
Endospores are
A. resistant to destruction by radiation. B. metabolically inactive. C. living structures. D. resistant to heat and chemical destruction. E. All of these choices are correct.