Usmle biochemistry - Study guides, Class notes & Summaries

Biochemistry USMLE Practice Questions and Answers 2024.

Biochemistry Section-USMLE Step 1

BIOCHEMISTRY USMLE STEP 1 STUDY GUIDE 2024/2025 || WITH QUESTIONS AND CORRECT ANSWERS GRADE A

USMLE Step 1 First Aid - Biochemistry 2024 Study Guide(100% Verified) Side = base + (deoxy)ribose [sugar] Tide = base + (deoxy)ribose [sugar] *Which are the purines?* "pure as gold" = Adenosine, Guanosine *Which are the pyrimidines?* "CUT the pyramid" = Cytosine, Uracil, Thymine - answerWhat is a nucleoside? What is a nucleotide? Which are the purines? Which are the pyrimidines? *Disrupt pyrimidine synthesis* *Leflunomide: *inhibits dihydroorate dehydrogenase *Methotrexatem Tri...

Biochemistry Section-USMLE Step 1 2024 Questions and Answers which histone ties DNA-histone nucleosome beads into more condensed structures? - answerH1 is DNA acidic or basic? - answeracidic what type of aa are histones made of? are they acidic or basic? - answerlysine and arginine; basic is heterochromatic more accessible or less accessible to TF? euchromatin? - answerless; more if a cell has a hyperchromatic or condensed nucleus is it undergoing transcription etc? - answerno what ar...

USMLE Step 1 Rapid Review 2024 Questions and Answers 100% Pass abdominal pain, ascites, hepatomegaly - Correct Answer ️️ -Budd-Chiari syndrome Familial hypercholesterolemia - Correct Answer ️️ -achilles tendon xanthoma adrenal hemorrhage, hypotension, DIC - Correct Answer ️️ -Waterhouse-Friderichsen syndrome biochemistry of Marfan's syndrome - Correct Answer ️️ -fibrillin defect posthepatic venous thrombosis - Correct Answer ️️ -Budd-Chiari syndrome Familial hypercho...

Biochemistry USMLE Practice Questions and Answers thrombocytopenia - answerdeficiency of platelets in the blood. This causes bleeding into the tissues, bruising, and slow blood clotting after injury. A 16 year old boy presented to a doctor by his mother for the injury which he had recently during cycle riding. On examination doctor noticed the loose, overly- flexible joints, smooth or stretchy, easily-bruised skin and abnormal wound healing and scar formation. This is the characteristic f...

USMLE- BIOCHEMISTRY- EXAM 3 REVIEW | WITH 100% CORRECT ANSWERS | LATEST UPDATE | GRADED A+ 1 Q Which of the following statements about Purine and Pyrimidine biosynthesis and metabolism is correct (or True)? (Select all that apply) A: Antifolate drugs and Glutamine analogs block purine nucleotide biosynthesis. B: PRPP (phosphoribosylpyrophosphate) synthase phosphorylates the anomeric OH group of Ribose 5’-phosphate. C: cAMP and cGMP feedback regulate their formation from IMP (Ino...

BIOCHEMISTRY USMLE STEP 1 EXAM QUESTIONS WITH CORRECT ANSWERS Achondroplasia involves what defect? -ANS_ Cell-signlaling defect of fibroblast growth factor (FGF) receptor 3 The splicesome exsises introns or exons? -ANS_ Introns What chemotherap agent inhibits thymidylate synthase (therefore decreasing pyrmidine synthesis for DNA)? -ANS_ 5-fluorouracil

Biochemistry USMLE Practice Questions and Answers thrombocytopenia - answerdeficiency of platelets in the blood. This causes bleeding into the tissues, bruising, and slow blood clotting after injury. A 16 year old boy presented to a doctor by his mother for the injury which he had recently during cycle riding. On examination doctor noticed the loose, overly- flexible joints, smooth or stretchy, easily-bruised skin and abnormal wound healing and scar formation. This is the characteristic f...