Description : Pyruvate dehydrogenase complex is located in (A) Cytosol (B) Lysosomes (C) Mitochondria (D) Endoplasmic reticulum
Last Answer : Answer : C
Description : Glycolytic pathway is located in (A) Mitochondria (B) Cytosol (C) Microsomes (D) Nucleus
Last Answer : Answer : B
Description : De novo synthesis of pyrimidine nucleotides occurs in (A) Mitochondria (B) Cytosol (C) Microsomes (D) Ribosomes
Description : The biosynthesis of urea occurs mainly in the liver: (A) Cytosol (B) Mitochondria (C) Microsomes (D) Nuclei
Description : The major site for elongation of medium chain fatty acids is (A) Mitochondria (B) Cytosol (C) Microsomes (D) All of these
Description : The main pathway for denovo synthesis of fatty acids occur in (A) Cytosol (B) Mitochondria (C) Microsomes (D) Nucleus
Last Answer : Answer : A
Description : Oxidation of fatty acids occurs (A) In the cytosol (B) In the matrix of mitochondria (C) On inner mitochondrial membrane (D) On the microsomes
Description : De hovo synthesis of fatty acids occurs in (A) Cytosol (B) Mitochondria (C) Microsomes (D) All of these
Description : Long chain fatty acids are first activated to acetyl-CoA in (A) Cytosol (B) Microsomes (C) Nucleus (D) Mitochondria
Description : The biosynthesis of Urea occurs mainly in the Liver: (A) Cytosol (B) Microsomes (C) Nucleus (D) Mitochondria
Last Answer : Answer : D
Description : All enzymes of TCA cycle are located in the mitochondrial matrix except one which is located in inner mitochondrial membranes in eukaryotes and in cytosol in prokaryotes. This enzyme is (a) isocitrate dehydrogenase (b) malate dehydrogenase (c) succinate dehydrogenase (d) lactate dehydrogenase.
Last Answer : (c) succinate dehydrogenase
Description : The synthesis of 3-hydroxy-3-methylglutaryl-CoA can occur (A) Only in mitochondria of all mammalian tissues (B) Only in the cytosol of all mammalian tissue (C) In both cytosol and mitochondria (D) In lysosomes
Description : The site of enzymes directing the metabolic oxidation (respiration), ATP synthesis and considered as power house of cell are (A) Lysosomes (B) Microsomes (C) Mitochondria (D) Golgi apparatus
Last Answer : (C) Mitochondria
Description : Acetyl-CoA is the principal building block of fatty acids. It is produced within the mitochondria and does not diffuse readily into cytosol. The availability of acetyl CoA involves (A) Carnitine acyl transferase (B) Pyruvate dehydrogenase (C) Citrate lyase (D) Thiolase
Description : Monooxygenases are found in (A) Cytosol (B) Nucleus (C) Mitochondira (D) Microsomes
Description : Chain elongation of fatty acids in mammalian liver occurs in (A) Nucleus (B) Ribosomes (C) Lysosomes (D) Microsomes
Description : Chain elongation of fatty acids occurring in mammalian liver takes place in which of the following subcellular fractions of the cell? (A) Nucleus (B) Ribosomes (C) Lysosomes (D) Microsomes
Description : Mammalian DNA polymerase γ is located in (A) Nucleus (B) Nucleolus (C) Mitochondria (D) Cytosol
Description : Vitamin E stored in (A) Mitochondria (B) Microsomes (C) Both (A) and (B) (D) None of these
Description : Zn is present as prosthetic group in this enzyme: (A) Carbonic anhydrase (B) Carboxy peptidase (C) Lactate dehydrogenase (D) All of these
Description : Isoenzymes of lactate dehydrogenase are useful for the diagnosis of (A) Heart disease (B) Kidney disease (C) Liver disease (D) Both (A) and (C)
Description : Schardinger’s enzyme is (A) Lactate dehydrogenase (B) Xanthine dehydrogenase (C) Uric oxidase (D) L amino acid dehydrogenase
Description : Which of the following is not having an apoenzyme and coenzyme? (A) Lactate dehydrogenase (B) Succinate dehydrogenase (C) Malate dehydrogenase (D) Pepsin
Description : Coenzymes derived from the vitamin shown below are required by which of the following enzymes? (A) Lactate dehydrogenase (B) Glutamate dehydrogenase (C) Pyruvate dehydrogenase (D) Malate dehydrogenase
Description : Which of the following is an allosteric enzyme? (A) Phosphohexose isomerase (B) Phosphotriose isomerase (C) Lactate dehydrogenase (D) Phosphofructokinase
Description : Lactate dehydrogenase is a (A) Monomer (B) Dimer (C) Tetramer (D) Hexamer
Description : The first enzyme found to have isoenzymes was (A) Alkaline Phosphatase (B) Lactate dehydrogenase (C) Acid Phosphatase (D) Creatine kinase
Description : Which of the following isoenzyme of lactate dehydrogenase is raised in serum in myocardial infarction: (A) LD1 (B) LD2 (C) LD1 and LD2 (D) LD5
Description : Serum lactate dehydrogenase rises in (A) Viral hepatitis (B) Myocardial infarction (C) Carcinomatosis (D) All of these
Description : Pyruvate dehydrogenase a multienzyme complex is required for the production of (A) Acetyl-CoA (B) Lactate (C) Phosphoenolpyruvate (D) Enolpyruvate
Description : An example of functional plasma enzyme is (A) Lipoprotein lipase (B) Amylase (C) Aminotransferase (D) Lactate dehydrogenase
Description : An enzyme catalyzing oxidoreduction, using oxygen as hydrogen acceptor is (A) Cytochrome oxidase (B) Lactate dehydrogenase (C) Malate dehydrogenase (D) Succinate dehydrogenase
Description : Example of an extracellular enzyme is (A) Lactate dehydrogenase (B) Cytochrome oxidase (C) Pancreatic lipase (D) Hexokinase
Description : Lactate dehydrogenase has how many iso-enzymes?
Last Answer : H4, H3M, H2M2, M3H and M4 varieties, forming five iso-enzymes. All these five forms are seen in all persons.
Description : Lactate dehydrogenase has how many polypeptide subunits?
Last Answer : Four. It is a tetramer.
Description : Which of the following is located in the mitochondria? (A) Cytochrome oxidase (B) Succinate dehydrogenase (C) Dihydrolipoyl dehydrogenase (C) All of these
Last Answer : D
Description : De novo synthesis of purine nucleotide occurs in (A) Mitochondria (B) Cytosol (C) Microsmes (D) Ribosomes
Description : During synthesis of porphyrins, synthesis of δ-amino levulinic acid occurs in (A) Mitochondria (B) Cytosol (C) Both in mitochondria and cytosol (D) Ribosomes
Description : Porphyrins are synthesized in (A) Cytosol (B) Mitochondria (C) Cytosol and mitochondria (D) Rough endoplasmic reticulum
Description : All the enzymes involved in the synthesis of cholesterol are found in (A) Mitochondria (B) Golgi apparatus (C) Nucleus (D) Endoplasmic reticulum and cytosol
Description : The amino alcohol sphingosine is synthesized in (A) Mitochondria (B) Cytosol (C) Nucleus (D) Endoplasmic reticulum
Description : The enzyme pyruvate carboxylase is present in (A) Cytosol (B) Mitochondria (C) Nucleus (D) Golgi bodies
Description : The enzymes of the pentose phosphate pathway are found in the (A) Cytosol (B) Mitochondria (C) Nucleus (D) Endoplasmic reticulum
Description : What is the sub cellular site for the βoxidation of fatty acids? (A) Nucleus (B) Mitochondria (C) Lysosome (D) Cytosol
Description : While citrate is converted to isocitrate in the mitochondria, it is converted to _______ in the cytosol. (A) Acetyl CoA + oxaloacetate (B) Acetyl CoA + malonyl CoA (C) Acetyl CoA + Pyruvate (D) Acetyl CoA + acetoacetyl CoA
Description : De novo synthesis and oxidation of fatty acids differ in the following respect: (A) Synthesis occurs in cytosol and oxidation in mitochondria (B) Synthesis is decreased and oxidation increased by ... synthesis and FAD in oxidation (D) Malonyl CoA is formed during oxidation but not during synthesis
Description : The enzymes of β-oxidation are found in (A) Mitochondria (B) Cytosol (C) Golgi apparatus (D) Nucleus
Description : Carbamoyl phosphate required for urea synthesis is formed in (A) Cytosol (B) Mitochondria (C) Both (A) and (B) (D) None of these
Description : The enzymes of urea synthesis are found in (A) Mitochondria only (B) Cytosol only (C) Both mitochondria and cytosol (D) Nucleus
Description : Extranuclear DNA is present in (A) Ribosomes (B) Endoplasmic reticulum (C) Lysosomes (D) Mitochondria