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Biochemistry Practice Test Questions: Lipid Biosynthesis, Biosynthesis of Amino Acids, Nucleotides and Related Molecules
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Biosynthesis is the generation of natural products through enzymatic reactions, as in cellular metabolism.

Topics covered include: Biosynthesis of Fatty Acids and Eicosanoids, Biosynthesis of Triacylglycerols, Biosynthesis of Membrane Phospholipids, Biosynthesis of Cholesterol, Steroids and Isoprenoids, Nitrogen Metabolism, Biosynthesis of Amino Acids, Molecules Derived from Amino Acids, & Biosynthesis and Degradation of Nucleotides.

Biochemistry Practice Test Questions: Lipid Biosynthesis, Biosynthesis of Amino Acids, Nucleotides and Related Molecules
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25 Questions

1. Which of the following transfers acyl group from co-A to cys residue of KS?
2. Which of the following is the major point of regulation on the pathway to cholesterol?
3. Which of the following is the simplest hydrophilic moiety present in membrane lipids?
4. Which of the following reduces β-keto group to β-hydroxyl group?
5. Cerebroside is also called as ___________
6. Hydrolysis of phosphatidic acid by phosphatidic acid phosphatase yields ___________
7. Which of the following is a molecular formula of cholesterol?
8. Which of the following is degraded to methylmalonyl semialdehyde?
9. The essential intermediates in the pathway from acetate to cholesterol are ___________
10. Which of the following is considered as the structural parent of all sphingolipids?
11. The precursor of eicosanoids in human is ___________
12. Dihydroxyacetone phosphate precursor of glycerol 3-phosphate is derived from ___________
13. Which of the following reduces double bond, forming saturated acyl ACP?
14. Which of the following is an important precursor in the purine pathway?
15. Which of the following is not true regarding the synthesis of triacylglycerol in adipose tissue?
16. Which of the following carries acyl groups in thio-ester linkage?
17. Which of the following catalyzes reactions that incorporate nitrogen derived from glutamine?
18. Which of the following converts PGH2 to thromboxane A2?
19. Displacement of CMP through a nucleophilic attack by the hydroxyl group of C-1 hydroxyl of glycerol 3-phosphate yields ___________
20. Which of the following removes H2O from β-hydroxyl ACP, creating double bond?
21. Conversion of acetyl co-A to malonyl co-A requires which of the following?
22. Which of the following condenses acyl and malonyl groups?
23. Lignin is derived from ____________
24. Which of the following is involved in the bio-signaling pathway that includes membrane turnover and exocytosis?
25. Which of the following is derived from tryptophan?

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