Which of the following is the correct statement for the a anomer and B anomer of D-arabinose? O They contain axial or equatorial carbonyl groups. O They have different configurations around only one carbon atom O They are two unstable ring structures that are mirror images. They contain different numbers of hydroxyl groups.

Following are Fischer projections for a groupof five-carbon sugars, all of which are aldopentoses. Identify thepairs that are enantiomers and the pairs that are epimers. (Thesugars shown here are not all of the possible five-carbon sugars.)

Draw the structure of the isoprenoid biogenic precursor of the terpenes and show the steps in the biosynthesis of farnesol from this precursor. please explain in paper with clear details farnesol CH2OH

Sucrose, a major product of photosynthesis in green leaves, is synthesized by a battery of enzymes. The substrates for sucrose synthesis, D -glucose and D fructose, are a mixture of α and β anomers as well as acyclic compounds in solution. Nonetheless, sucrose consists of α - D -glucose linked by its carbon-1 atom to the carbon-2 atom of βD -fructose. How can the specificity of sucrose be explained in light of the potential substrates?