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NBCE Part 1 – Biochemistry Exam Questions With 100% Verified Answers
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©BRAINBARTER 2024/2025 NBCE Part 1 – Biochemistry Exam Questions With 100% Verified Answers Coenzymes are formed where? - answerIn the intestinal mucosa Coenzymes are formed from what vitamin? - answerB vitamins What are the different types of B vitamins? - answerB1: Thiamin, B2: Riboflavin...

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NBCE Part 1 – Biochemistry Exam
Questions With 100% Verified Answers


Coenzymes are formed where? - answer✔In the intestinal mucosa


Coenzymes are formed from what vitamin? - answer✔B vitamins


What are the different types of B vitamins? - answer✔B1: Thiamin, B2: Riboflavin, B3: Niacin,

B5: Panthotenic Acid, B6: Pyridoxine, B7: Biotin, B9: Folic Acid, B12: Cyanocobalamine,

These Ribs Need PaPys B*tchin Food Cyanide


The active coenzyme created from thiamine (B1) is? - answer✔Thiamine pyrophosphate


Thiamine pyrophosphate has what function? - answer✔Decarboxylation.


In order to convert pyruvic acid to acetyl CoA, we need? - answer✔Thiamine pyrophosphate


Beri-Beri is a deficiency in? - answer✔Thiamine. Causes numbness in fingers and toes. (Rub

berrys on thighs)


Wernicke-korsakoffs is seen in who? - answer✔Alcoholics, from a deficiency in thiamine


What B-Vitamin contains sulfur? - answer✔B1: Thiamine, B5: Pantothenic acid.


The isoallaxazine ring system (Flavin Ring) is seen in what B-vitamin? - answer✔Riboflavin

, ©BRAINBARTER 2024/2025


What are the active coenzymes for riboflavin? - answer✔FMN and FAD


Riboflavin is involved in? - answer✔Dehydrogenase enzymes:


What happens with hydrogen amounts during oxidation/reduction? - answer✔OIL RIG

(Oxidation LOSE hydrogen) Reduction (GAIN hydrogen)


Succinate uses what to turn into Fumarate? - answer✔Succinate dehydrogenase


FAD, from riboflavin, will gain 2Hs, turning it into FADH2 during what phase of the krebs

cycle? - answer✔When succinate turns into fumarate. (S-F-F)


The two Hs gained from FAD turning into FADH2 can be brought to the electron transport chain

and cashed in for how many ATP? - answer✔2 ATPs!!


Deficiency in riboflavin leads to? - answer✔Cheilosis (Severe cracking of lips) Yellow urine


Niacin can be taken in from what amino acid? - answer✔Tryptophan (Trip on a Fan at Night)


Niacins active coenzymes are - answer✔NAD and NADP (NAD for catabolism ) (NADP for

anabolism)


This coenzyme is involved in catabolism - answer✔NAD (Niacin) (Dilated vessels on this CAT)


This enzyme is a vasodilator and has a hypocholesterolemic effect (lowers cholesterol) -

answer✔Niacin


This coenzyme is involved in anabolism - answer✔NADP

, ©BRAINBARTER 2024/2025


Niacin is involved in what types of enzymes? - answer✔Dehydrogenase enzymes.


NAD is used at what part of the krebs cycle? - answer✔Malate to oxaloacetate using malate

dehydrogenase. (M-N-O)


Deficiency in niacin, characterized by dermatitis, diarrhea, and dementia. - answer✔Pellagra


What is the active form of B5- Pantothenic acid? - answer✔Coenzyme A, CoASH.


What is the function of coenzyme A? - answer✔Attaches to something to activate it, forming

high energy bond. - Oxidation of pyruvate in citric acid cycle


What B vitamin is necessary to metabolize protein? - answer✔Pyridoxine (Pyro, need fire to

cook meat)


What is the active form of pyridoxine? - answer✔Pyridoxal phosphate, Pyridoxamine phosphate


Transaminase enzymes require what B-vitamin? - answer✔B6. Trans Am has a B6 engine.


Tryptophan can transaminate to (and vice versa) - answer✔Niacin(Trip on a fan at night)


Pyruvate can transaminate to (and vice versa) - answer✔Alanine(Pirates w/ 6 packs believe in

Allah)


Glutamate can transaminate to (and vice versa) - answer✔Alpha-ketoglutarate


Aspartate can transaminate to (and vice versa) - answer✔Oxaloacetate(Oxes in Aspen)

, ©BRAINBARTER 2024/2025


Oral contraceptives can cause a deficiency in? - answer✔B6. Pyrodoxine (Six is killed by oral

contraceptives. Sex is killed by oral contraceptives)


What is the active form of B9 - folate? - answer✔Tetrahydrofolate


What is necessary for the formation of tetrahydrofolate from folic acid? - answer✔Vitamin C

and NADP


What is the function of folic acid? - answer✔Formation of purines and pyrimidines, Maturation

of RBCs


Pregnant women can be deficient in what B-vitamin? - answer✔B9. (Babies are like B9 tumors)


Tropical sprue can cause a deficiency in what B-vitamin? - answer✔B9


Megaloblastic anemia is a deficiency seen what B-vitamin? - answer✔B9


What is the active form of B12 cyanocobalamine? - answer✔(5) Deoxyadenosyl cobolamine


Which vitamin forms and matures RBC? - answer✔B12 Cyanocobalamine.


Most deficiencies of B12 is from a lack of what in the stomach? - answer✔Intrinsic factor.


Intrinsic factor is secreted by what in the stomach? - answer✔Parietal cells


B12 deficiency with megaloblastic anemia can turn into? - answer✔Pernicious anemia.


Biotin is in charge of what? - answer✔Carboxylation reactions. (Box cat)

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