Description : Activation of fatty acids requires all the following except (A) ATP (B) Coenzyme A (C) Thiokinase (D) Carnitine
Last Answer : Answer : D
Description : A cofactor required for the activity of the enzyme ALA dehydratase is (A) Cu (B) Mn (C) Mg (D) Fe
Last Answer : Answer : A
Description : Na+/K+-ATPase along with ATP requires (A) Ca (B) Mn (C) Mg (D) Cl
Last Answer : Answer : C
Description : Mitochondrial thiokinase acts on (A) Short chain of fatty acids (B) Medium chain fatty acids (C) Long chain fatty acids (D) All of these
Description : Fatty acids are activated to acyl CoA by the enzyme thiokinase: (A) NAD+ (B) NADP+ (C) CoA (D) FAD+
Description : The enzyme carbamoyl phosphate synthetase requires (A) Mg++ (B) Ca++ (C) Na+ (D) K+
Description : Calcium is required for the activation of the enzyme: (A) Isocitrate dehydrogenase (B) Fumarase (C) Succinate thiokinase (D) ATPase
Description : A pathway that requires NADPH as a cofactor is (A) Fatty acid oxidation (B) Extra mitochondrial denovo fatty acid synthesis (C) Ketone bodies formation (D) Glycogenesis
Last Answer : Answer : B
Description : For reduction enzyme HMG-CoA reductase requires cofactor: (A) NADPH (B) NADP (C) NAD (D) FAD
Description : Which one is an essential mineral, not constituent of any enzyme but stimulates the activity of many enzymes? (a) Zn (b) Mn (c) K (d) Mg
Last Answer : (c) K
Description : Vitamin K is a cofactor for (A) Gamma carboxylation of glutamic acid residue (B) β-Oxidation of fatty acid (C) Formation of γ-amino butyrate (D) Synthesis of tryptophan
Description : Intestinal absorption of chromium is shared with (A) Mn (B) Mg (C) Ca (D) Zn
Description : Which of the following is required for crystallization and storage of the hormone insulin? (A) Mn++ (B) Mg++ (C) Ca++ (D) Zn++
Last Answer : D
Description : DNA-dependent RNA polymerase requires the following for its catalytic activity: (A) Mg++ (B) Mn++ (C) Both (A) and (B) (D) None of these
Description : Vitamin K is involved in posttranslational modification of the blood clotting factors by acting as cofactor for the enzyme: (A) Carboxylase (B) Decarboxylase (C) Hydroxylase (D) Oxidase
Description : The acquisition energy by glucose fermentation requires A.substrate-level phosphorylation B.electron transport of electrons from NADH C.long-chain fatty acid oxidation D.the enzyme formic-hydrogen lyase
Last Answer : A.substrate-level phosphorylation
Description : Which of the following regulates lipolysis in adipocytes? (A) Activation of fatty acid synthesis mediated by CAMP (B) Glycerol phosphorylation to prevent futile esterification of fatty acids (C) ... result of hormone stimulated increases in CAMP levels (D) Activation of CAMP production by Insulin
Description : Soils with high pH are generally deficient in:? a Zn and Mn b B and Fe c Cu and Mo d Ca and Mg
Last Answer : a Zn and Mn
Last Answer : Mn++
Description : With the exception of glycine all amino acids found in protein are (A) Isocitrate dehydrogenase (B) Fumarase (C) Succinate thiokinase (D) ATPase
Description : Which of the following is a substratespecific enzyme? (A) Hexokinase (B) Thiokinase (C) Lactase (D) Aminopeptidase
Description : Vitamin K is involved in posttranslational modification of the blood clotting factors by acting as cofactor for the enzyme (A) Carboxylase (B) Decarboxylase (C) Hydroxylase (D) Oxidase
Last Answer : (A) Carboxylase
Description : Which of the following is not a cofactor? (A) Mg (B) Iron (C) Cu (D) Methylcobalamine
Description : A cofactor required for the conversion of acetyl-CoA to malonyl-CoA in extramitochondrial fatty acid synthesis is (A) Biotin (B) FMN (C) NAD (D) NADP
Description : The acetyl CoA formed on β-oxidation of all long chain fatty acids is metabolized under normal circumstances to (A) CO2 and water (B) Cholesterol (C) Fatty acids (D) Ketone bodies
Description : All long chain fatty acids with even number of carbon atoms are oxidized to a pool of _________ by β-oxidation. (A) CO2 (B) Propionic acid (C) Acetic acid (D) Acetyl CoA
Description : A soluble system for synthesis of fatty acids have been isolated from avian liver, required for the formation of long chain fatty acids by this system is (A) ATP (B) Acetyl CoA (C) NADPH (D) All of these
Description : Long chain fatty acids are first activated to acyl CoA in the (A) Cytosol (B) Mitochodria (C) Ribosomes (D) Microsome
Description : All of the following statements about hypoglycin are true except (A) It is a plant toxin (B) It causes hypoglycaemia (C) It inhibits oxidation of short chain fatty acids (D) It inhibits oxidation of long chain fatty acids
Description : Mitochondrial membrane is permeable to (A) Short chain fatty acids (B) Medium chain fatty acids (C) Long chain fatty acids (D) All of these
Description : Carnitine is required for the transport of (A) Triglycerides out of liver (B) Triglycerides into mitochondria (C) Short chain fatty acids into mitochondria (D) Long chain fatty acids into mitochondria
Description : Saliva contains a lipase which acts on triglycerides having (A) Short chain fatty acids (B) Medium chain fatty acids (C) Long chain fatty acids (D) All of these
Description : Long chain fatty acids penetrate the inner mitochondrial membrane (A) Freely (B) As acyl-CoA derivative (C) As carnitine derivative (D) Requiring Na dependent carrier
Description : Long chain fatty acids are first activated to acetyl-CoA in (A) Cytosol (B) Microsomes (C) Nucleus (D) Mitochondria
Description : How long chain fatty acids are absorbed?
Last Answer : Long chain fatty acids (chain length more than 14 carbons) are absorbed by forming micelles with the help of bile salts.
Description : Saponification number is (A) mg of KOH required to saponify one gm of fat or oil (B) mg of KOH required to neutralize free fatty acids of one gms of fat (C) mg of KOH required to neutralize the acetic acid obtained by saponification of one gm of fat after it has been acetylated (D) None of these
Description : Synthesis of sphingosine requires the cofactor (A) NAD (B) NADP (C) NADPH+ (D) ATP
Description : A pathway that requires NADPH as a cofactor is (A) Extramitochondrial folic acid synthesis (B) Ketone body formation (C) Glycogenesis (D) Gluconeogenesis
Description : An important reaction for the synthesis of amino acid from carbohydrate intermediates is transamination which requires the cofactor: (A) Thiamin (B) Riboflavin (C) Niacin (D) Pyridoxal phosphat
Description : Which of the following is present in Chlorophyll molecule ? (1) Mn (2) Mg (3) Fe (4) K
Last Answer : Mg
Description : The deficiencies of micronutrients, not only affect growth of plants but also vital functions such as photosynthetic and mitochondrial electron flow. Among the list given below, which group of three elements shall affect most, both ... , Mo (b) Ca, K, Na (c) Mn, Co, Ca (d) Cu, Mn, Fe
Last Answer : d) Cu, Mn, Fe
Description : Formation of acetyl CoA from pyruvate for de novo synthesis of fatty acids requires (A) Pyruvate dehydrogenase complex (B) Citrate synthetase (C) ATP citrate lyase (D) All of these
Description : β-Oxidation of fatty acids requires all the following coenzymes except (A) CoA (B) FAD (C) NAD (D) NADP
Description : De novo synthesis of fatty acids requires all of the following except (A) Biotin (B) NADH (C) Panthothenic acid (D) ATP
Description : The predominant cation of plasma is (A) Na+ (B) K+ (C) Ca+ (D) Mg++
Description : NH+ 4 aminates glutamate to form glutamine requiring ATP and (A) K+ (B) Na+ (C) Ca++ (D) Mg++
Description : Renin converts casein to paracasein in presence of (A) Ca++ (B) Mg++ (C) Na+ (D) K+
Description : A cofactor in the conversion of dihydroorotate to orotic acid, catalysed by the enzyme dihydroorotate dehydrogenase is (A) FAD (B) FMN (C) NAD (D) NADP
Description : Cobalt may act as cofactor for the enzyme: (A) Glycl-glycine dipeptidase (B) Elastase (C) Polynucleotidases (D) Phosphatase
Description : An inorganic ion required for the activity of an enzyme is known as (A) Activator (B) Cofactor (C) Coenzyme (D) None of these