This set of Biochemistry Multiple Choice Questions & Answers (MCQs) focuses on “Biosynthesis of Amino Acids”. 1. 3-phosphoglycerate is not the metabolic precursor for ____________ a) Serine b) Glycine c) Cysteine d) Arginine 2. Pyruvate is the precursor for ____________ a) Alanine b) Glutamate c) Serine d) Proline 3. The cyclized derivative of glutamate is … Read more
This set of Biochemistry Multiple Choice Questions & Answers (MCQs) focuses on “Overview of Nitrogen Metabolism”. 1. Uridylylation and deuridylylation of PII are brought about by a single enzyme ______________ a) Uridylyltransferase b) Adenylyltransferase c) Glutamate synthase d) Dinitrogenase 2. Dinitrogenase reductase is a ____________ a) Monomer b) Dimer c) Trimer d) Tetramer 3. Dinitrogenase … Read more
This set of Biochemistry Question Bank focuses on “Biosynthesis of Cholesterol, Steroids and Isoprenoids”. 1. Generally, the receptors for steroid hormones reside at ___________ a) Nucleoplasm b) Nuclear membrane c) Cytoplasm d) Plasma membrane 2. Steroids have ___________ a) Sterol nucleus with two alkyl chain attached to the ring D of cholesterol b) Sterol nucleus … Read more
This set of Biochemistry Multiple Choice Questions & Answers (MCQs) focuses on “Biosynthesis of Membrane Phospholipids”. 1. Displacement of CMP through nucleophilic attack by the hydroxyl group of serine yields ___________ a) Phosphatidyl serine b) Phosphatidyl glycerol 3-phosphate c) Phosphatidyl glycerol d) Phosphatidylethanolamine 2. Displacement of CMP through a nucleophilic attack by the hydroxyl group … Read more
This set of Biochemistry Multiple Choice Questions & Answers (MCQs) focuses on “Biosynthesis of Triacylglycerols”. 1. Which of the following is not true regarding the synthesis of triacylglycerol in adipose tissue? a) Phosphatidate is hydrolyzed b) Glycerol 3-phosphate dehydrogenase plays an important role c) Glycerol kinase plays an important role d) It is synthesized from … Read more
This set of Biochemistry Multiple Choice Questions & Answers (MCQs) focuses on “Biosynthesis of Fatty Acids and Eicosanoids”. 1. Conversion of acetyl co-A to malonyl co-A requires which of the following? a) NADPH b) H2O c) Folic acid d) Biotin 2. The prosthetic group of acyl carrier protein is ___________ a) 4’-phosphopantetheine b) 3’-phosphopantetheine c) … Read more
This set of Biochemistry Multiple Choice Questions & Answers (MCQs) focuses on “ATP Synthesis by Photophosphorylation”. 1. If 8 photons are required to produce one molecule of O2, how many photons are required to produce one molecule of glucose? a) 6 b) 8 c) 48 d) 12 2. When compared to retinal, chlorophyll can be … Read more
This set of Biochemistry Questions and Answers for Entrance exams focuses on “The Central Photochemical Event: Light-Driven Electron Flow”. 1. A chlorophyll-like accessory pigment lacking Mg+2 is ____________ a) Pheophytin b) Cytochrome c c) Plastocyanin d) Ferredoxin 2. A soluble Cu-containing electron transfer protein is ____________ a) Pheophytin b) Cytochrome c c) Plastocyanin d) Ferredoxin … Read more
This set of Biochemistry Multiple Choice Questions & Answers (MCQs) focuses on “General Features of Photophosphorylation”. 1. Which of the following statements about thylakoids is false? a) They contain chlorophyll pigments b) They contain the photosystems c) They contain Calvin cycle enzymes d) They contain the electron transport machinery 2. Which one of the following … Read more
This set of Biochemistry Multiple Choice Questions & Answers (MCQs) focuses on “The Role of Mitochondria in Apoptosis and Oxidative Stress”. 1. What is the effect of the excessive rate of apoptosis? a) Atrophy b) Sneezing c) Fever d) AIDS 2. What is the rate of apoptosis in average human adult per day? a) 10 … Read more
