Concept explainers
Interpretation:
The separation of
Concept introduction:
Sephadex is the trade name for the carbohydrate
In chromatographic techniques, the column generally contains gel particles in the form of porous beads that help in the separation of molecules on the basis of their molecular weight or size. The exclusion limit of the porous gel particles or beads is defined as the size or molecular weight (MW) beyond which molecules often elute in the same void volume of the column as they cannot enter the beads due to their relatively large size.
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Biochemistry
- REFLECT AND APPLY Given the typing speed from Question 37, how long must you type, nonstop, at the fidelity shown by E. coli (see Question 36) before an uncorrected error would be permitted?arrow_forwardREFLECT AND APPLY Why is it useful to plot rate data for enzymatic reactions as a straight line rather than as a curve?arrow_forwardREFLECT AND APPLY Consider the structures of arabinose and ribose. Explain why nucleotide derivatives of arabinose, such as ara-C and ara-A, are effective metabolic poisons.arrow_forward
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- REFLECT AND APPLY (a) Where in an earlier chapter have we en- countered something comparable to the action of the acyl carrier protein (ACP) of fatty acid synthesis? (b) What is a critical feature of the action of the ACP?arrow_forwardREFLECT AND APPLY Explain how glycogen phosphorylase is controlled allosterically and by covalent modification.arrow_forwardREFLECT AND APPLY How does the presence of -bonds versus - bonds influence the digestibility of glucose polymers by humans? Hint: There are two effects.arrow_forward
- BiochemistryBiochemistryISBN:9781305961135Author:Mary K. Campbell, Shawn O. Farrell, Owen M. McDougalPublisher:Cengage Learning