Biotin is essential for (A) Translation (B) Carboxylation (C) Hydroxylation (D) Transamination

1 Answer

Answer :

Answer : B

Related questions

Description : Vitamin B1 coenzyme (TPP) is involved in (A) Oxidative decarboxylation (B) Hydroxylation (C) Transamination (D) Carboxylation

Last Answer : Answer : A

Description : Biotin is involved in which of the following types of reactions? (A) Hydroxylation (B) Carboxylation (C) Decarboxylation (D) Deamination

Last Answer : Answer : B

Description : Vitamin B1 coenzyme (TPP) is involved in (A) Oxidative decarboxylation (B) Hydroxylation (C) Transamination (D) Carboxylation

Last Answer : (A) Oxidative decarboxylation

Description : Pyridoxal phosphate is central to (A) Deamination (B) Amidation (C) Carboxylation (D) Transamination

Last Answer : Answer : D

Description : Histidine is converted into histamine by (A) Carboxylation (B) Decarboxylation (C) Methylation (D) Hydroxylation

Last Answer : Answer : B

Description : A coenzyme required in transamination reactions is (A) Coenzyme A (B) Coenzyme Q (C) Biotin (D) Pyridoxal phosphate

Last Answer : Answer : D

Description : A coenzyme required in carboxylation reactions is (A) Lipoic acid (B) Coenzyme A (C) Biotin (D) All of these

Last Answer : Answer : C

Description : The vitamin required for carboxylation reaction is (A) Vitamin B2 (B) Vitamin B6 (C) Biotin (D) Vitamin B12

Last Answer : Answer : C

Description : One of the main functions of Vitamin K is the cofactor for (A) Carboxylase for the formation of γ--carboxy glutamate (B) Methylation by S-adenosyl methionine (C) Carboxylation by biotin (D) One carbon transfer by tetra hydrofolate

Last Answer : Answer : A

Description : One of the main functions of Vitamin K is cofactor for (A) Carboxylate for the formation of γ carboxyglutamate (B) Methylation of δ-adenosyl methionine (C) Carboxylation of biotin (D) One carbon transfer by tetrahydrofolate

Last Answer : Answer : A

Description : A molecule of CO2 is captured by biotin when it acts as coenzyme for carboxylation reaction. The carboxyl group is covalently attached to (A) A nitrogen (N1) of the biotin molecule (B) Sulphur of thiophene ring (C) α-Amino group of lysine (D) α-Amino group of protein

Last Answer : Answer : A

Description : Carboxylation of acetyl—CoA to malonyl — CoA takes place in presence of (A) FAD+ (B) Biotin (C) NAD+ (D) NADP+

Last Answer : Answer : C

Description : Study the pathway given below. Atmospheric CO2 mesophyll cell Bundle sheath cell Plasma- desmata Plasma membrane Cell wall HCO Phosphoenol- 3 - pyruvate Cell wall C acid ... b) Fixation Transamination Regeneration (c) Fixation Decarboxylation Regeneration (d) Carboxylation Decarboxylation Reduction

Last Answer : (c) Fixation Decarboxylation Regeneration

Description : Vitamin essential for transamination is (A) B1 (B) B2 (C) B6 (D) B12

Last Answer : Answer : C

Description : Which of the following processes is used for the production of Biodiesel? (1) Transamination (2) Transcription (3) Transesterification (4) Translation

Last Answer : (3) Transesterification Explanation: Biodiesel production is the process of producing the biofuel, biodiesel, through the chemical reactions transesterification and esterification. This involves vegetable or ... and oils being reacted with short-chain alcohols (typically methanol or ethanol).

Description : Which of the following processes is used for the production of Biodiesel ? (1) Transamination (2) Transcription (3) Transesterification (4) Translation 

Last Answer : Transesterification

Description : Egg is poor in (A) Essential amino acids (B) Carbohydrates (C) Avidin (D) Biotin

Last Answer : Answer : B

Description : Aspartate amino transferase uses the following for transamination: (A) Glutamic acid and pyruvic acid (B) Glutamic acid and oxaloacetic acid (C) Aspartic acid and pyruvic acid (D) aspartic acid and keto adipic acid

Last Answer : Answer : B

Description : Coenzymes are required in which of the following reactions? (A) Oxidation-reduction (B) Transamination (C) Phosphorylation (D) All of these

Last Answer : Answer : D

Description : Cofactor for transamination is (A) Thymine (B) Riboflavin (C) Pyridoxine (D) Niacin

Last Answer : Answer : C

Description : Pyridoxal phosphate is required as a coenzyme in (A) Transamination (B) Transulphuration (C) Desulphydration (D) All of these

Last Answer : Answer : D

Description : Most amino acids are substrates for transamination except (A) Alanine (B) Threonine (C) Serine (D) Valine

Last Answer : Answer : B

Description : Transamination is a (A) Irreversible process(B) Reversible process (C) Both (A) and (B) (D) None of these

Last Answer : Answer : B

Description : Histidine is converted to histamine through the process of (A) Transamination (B) Decarboxylation (C) Oxidative deamination (D) Urea cycle

Last Answer : Answer : B

Description : Pyruvic acid can be obtained by transamination of alanine with (A) α- keto glutaric acid (B) Acetoacetic acid (C) β−OH butyric acid (D) Phosphoenol Pyruvic acid

Last Answer : Answer : A

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

Last Answer : Answer : D

Description : What is the product of transamination reaction of pyruvate with glutamate?

Last Answer : Alanine and alpha keto glutarate

Description : Give an example of transamination reaction.

Last Answer : Glutamic acid + pyruvic acid alpha keto glutarate + alanine.

Description : What is transamination?

Last Answer : The alpha amino group of amino acid can be trans- ferred to alpha keto acid to form the correspond- ing new amino acid and alpha keto acid 

Description : Carboxylation of acetyl-CoA to malonylCoA requires the enzyme: (A) Acetyl-CoA carboxylase (B) Pyruvate carboxylase (C) Acetyl transacylase (D) Acyl CoA-synthetase

Last Answer : Answer : A

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

Last Answer : Answer : A

Description : Histamine is formed from histidine by (A) Deamination (B) Dehydrogenation (C) Decarboxylation (D) Carboxylation

Last Answer : Answer : C

Description : An aneplerotic reaction which sustains the availability of oxaloacetate is the carboxylation of (A) Glutamate (B) Pyruvate (C) Citrate (D) Succinate

Last Answer : B

Description : Conversion of a procarcinogen into a carcinogen often requires (A) Proteolysis (B) Microsomal hydroxylation (C) Exposure to ultraviolet radiation (D) Exposure to X-rays

Last Answer : Answer : B

Description : Epinephrine is derived from norepinephrine by (A) Decarboxylation (B) Hydroxylation (C) Oxidation (D) N-methylation

Last Answer : Answer : D

Description : The sequential steps in the conversion of tyrosine to epinephrine are (A) Ring hydroxylation-decarboxylation-side chain hydroxylation-N-methylation (B) Side chain hydroxylation-decarboxylation- ... chain hydroxylation-N-methylation (D) N-methylation-decarboxylation-ring and side chain hydroxylation

Last Answer : Answer : A

Description : In renal rickets, the following hydroxylation of Vitamin D3 does not take place: (A) 25 (B) 1 (C) 24 (D) 7

Last Answer : Answer : B

Description : Hydroxylation of 25-hydroxy cholecalciferol is promoted by (A) Cytochrome A (B) Panthyroid hormone (C) Cytochrome b (D) cAMP

Last Answer : Answer : B

Description : 25-hydroxylation of Vitamin D3 takes place in (A) Liver (B) Kidneys (C) Intestines (D) Pancreas

Last Answer : Answer : A

Description : 1-hydroxylation of 25-hydroxy Vitamin D3 takes place in (A) Liver (B) Kidneys (C) Intestine (D) Pancreas

Last Answer : Answer : B

Description : In retinal rickets, the following hydroxylation of Vitamin D3 does not take place: (A) 25 (B) 1 (C) 24 (D) 7

Last Answer : Answer : B

Description : Hydroxylation of 25-hydroxy cholecalciferol is promoted by (A) Cytochrome - a (B) Parathyroid hormone (C) Cytochrome-b (D) CAMP

Last Answer : Answer : B

Description : 25-hydroxylation of vitamin D3 takes place in (A) Liver (B) Kidneys (C) Intestine (D) Pancreas

Last Answer : Answer : A

Description : 1-hydroxylation of 25-OH vitamin D3 takes place in (A) Liver (B) Kidneys (C) Intestine (D) Pancreas

Last Answer : Answer : B

Description : 25-Hydroxylation of vitamin D occurs in (A) Skin (B) Liver (C) Kidneys (D) Intestinal mucosa

Last Answer : Answer : B

Description : Hydroxylation of Proline and Lysine in a protein is effected by (A) Vitamin B1 (B) Vitamin B2 (C) Vitamin B6 (D) Vitamin C

Last Answer : Answer : D

Description : The components of complement system are activated by (A) Microsomal hydroxylation (B) Phosphorylation (C) Glycosylation (D) Proteloysis

Last Answer : Answer : D

Description : Hydroxylation of phenylalanine requires all of the following except (A) Phenylalanine hydroxylase (B) Tetrahydrobiopterin (C) NADH (D) Molecular oxygen

Last Answer : Answer : C

Description : All of the following are required for hydroxylation of proline residues except (A) Ascorbic acid (B) Glutamate (C) Ferrous ions (D) Molecular oxygen

Last Answer : Answer : B

Description : All the following statement about hydroxyproline are true except (A) There is no codon for hydroxyproline (B) It is present in large amounts in collagen (C) Free proline cannot be hydroxylated to hydroxyproline (D) Hydroxylation of proline residues is catalysed by a dioxygenase

Last Answer : Answer : D