First aid usmle step 1 Guías de estudio, Notas de estudios & Resúmenes
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First Aid USMLE Step 1: Biochemistry | Questions and answers | 2024/25
- Examen • 53 páginas • 2024
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First Aid USMLE Step 1: Biochemistry | Questions and answers | 2024/25
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First Aid USMLE Step 1: Pharmacology 2023
- Examen • 25 páginas • 2023
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First Aid USMLE Step 1: Pharmacology 2023 
In the Michaelis-Menten kinetics what do the following mean: 
Km 
Vmax 
 
Draw a typical hyperbolic curve on a Michaelis-Menten Plot, then draw how the addition of a competitive and non-competitive inhibitor would change the kinetics of the reaction. - ANS-*In the Michaelis-Menten kinetics what do the following mean:* 
 
Km: 
- the concentration of substrate at 1/2 Vmax 
- this is INVERSELY related to the affinity of enzyme for its substrate 
 
Vmax: ...
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First Aid USMLE STEP 1- Microbiology Exam Review A+ 2023
- Examen • 64 páginas • 2023
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First Aid USMLE STEP 1- Microbiology 
Exam Review A+ 
2023 
Cell Wall Overall Picture - Compare *Gram (+) to Gram (-)* 
*Flagellum* on bacteria is composed of what? What is the function? - ANS-Composition: Proteins 
Function: motility 
*Pilus/Fimbria* on bacteria is composed of what? What is the function? - ANS-Composition: Glycoprotein 
Function: Mediate adherence of bacteria to cell surface, sex plus during conjugation. 
*Spore* formation is ONLY possible is what type of bacteria? Why is the ...
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2024 FIRST AID USMLE STEP 1 – VITAMINS QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS
- Examen • 9 páginas • 2024
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2024 FIRST AID USMLE STEP 1 – VITAMINS QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS
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First Aid USMLE Step 1: Biochemistry questions with complete solution 2023.2024
- Examen • 57 páginas • 2023
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First Aid USMLE Step 1: Biochemistry questions with complete solution 2023.2024
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First Aid USMLE Step 1: GI with complete solution 2023/2024
- Examen • 70 páginas • 2023
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First Aid USMLE Step 1: GI with complete solution 2023/2024
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First Aid USMLE Step 1: Pharmacology
- Examen • 25 páginas • 2024
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First Aid USMLE Step 1: Pharmacology
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First Aid USMLE Step 1: Pharmacology 2023
- Examen • 25 páginas • 2024
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- $7.99
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First Aid USMLE Step 1: Pharmacology 
2023
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First Aid USMLE Step 1- Pharmacology (Complete) Exam 2023
- Examen • 83 páginas • 2023
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First Aid USMLE Step 1- Pharmacology (Complete) 
Exam 2023 
Penicillin G (IV and IM) 
Penicillin M (oral) - ANS-*MOA:* 
*β-lactam*: a structural analog of D-ala-D-ala (a normal component of cell walls) which 
binds and inactivates bacterial transpeptidases (penicillin-binding protein, PBPs) to 
block peptidoglycan cross linking 
*Clinical use:* 
Bactericidal for Gram-⊕ cocci/rods, Gram-⊖ cocci (Neisseria), and spirochetes 
Mostly used for Gram-⊕ organisms (S. pneumoniae, S. pyogenes, A...
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First Aid USMLE Step 1- Reproductive Organ Systems + Embryology
- Examen • 91 páginas • 2023
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First Aid USMLE Step 1- Reproductive 
Organ Systems + Embryology 
2023 Update 
Sonic Hedgehog Gene - ANS-Produced @ base of limbs in zone of polarizing activity 
Involved in patterning along anterior/posterior axis 
*SUMMARY: Anterior/posterior pattern* 
Wnt-7 Gene - ANS-Produced @ apical ectodermal ridge (thickened ectoderm @ distal 
end of each developing limb) 
Necessary for organization along dorsal/ventral axis 
*SUMMARY: Dorsal/ventral pattern* 
FGF Gene - ANS-Produced @ apical ectoderma...