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USMLE Step 1 Biochemistry
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USMLE Step 1 Biochemistry
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25 Questions

1. What is the other name of Vitamin B6? What is its function?

2. What does the passage of electrons in the ETC result in?

3. What do statins inhibit?

4. What disease is associated with chromosome 16?

5. What is dysgeusia?

6. What is the mc chromosomal disorder?

7. What is the mcc of an autosomal trisomy?

8. What is another way to trap glucose in cells but not by phosphorylating it? What enzymes are used?

9. What are two clinical symptoms of newborns with CF? and whats a lab value of a newborn with CF?

10. After glucose 6 P is converted to glucose 1 P - What is the next step in glycogenesis? then what?

11. What is imprinting?

12. What converts dUMP to dTMP? What drug blocks this?

13. AD diseases are usually...

14. What kind of linkages does glycogen synthase make? branching enzyme?

15. What is etoposide? why does this not affect normal healthy cells?

16. What is the first step in FA degradation in the cytosol?

17. What drug blocks ribonucleotide reductase? What does this enzyme do?

18. What is an ELISA? What are the two ways to perform it? What is the sensitive and specificity? give a relative clinical example.

19. What is the rate determining enzyme in TCA cycle?

20. What disease is associated with chromosome 18?

21. _____________ prevents fluidity of plasma membrane

22. What are the glucogenic amino acids?

23. Breast milk has a little of...

24. GMP is degraded to guanosine Which is degraded to guanine. What two options are next? by What enzymes?

25. When is phenylketonuria screened? why?

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