All the following statements about carnitine are true except (A) It can be synthesised in the human body (B) It can be synthesized from methionine and lysine (C) It is required for transport of short chain fatty acids into mitochondria (D) Its deficiency can occur due to haemodialysis

All the following statements about carnitine are true except (A) It can be synthesised in the human body (B) It can be synthesized from methionine and lysine (C) It is required for transport of short chain fatty acids into mitochondria (D) Its deficiency can occur due to haemodialysis
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Answer : C
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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 : 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

Last Answer : Answer : D

Carnitine is synthesized from (A) Lysine and methionine (B) Glycine and arginine (C) Aspartate and glutamate (D) Proline and hydroxyproline

Description : Carnitine is synthesized from (A) Lysine and methionine (B) Glycine and arginine (C) Aspartate and glutamate (D) Proline and hydroxyproline

Last Answer : Answer : A

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 : 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

Last Answer : Answer : C

Carnitine is synthesized from (A) Lysine (B) Serine (C) Choline (D) Arginine

Description : Carnitine is synthesized from (A) Lysine (B) Serine (C) Choline (D) Arginine

Last Answer : Answer : A

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 : 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

Last Answer : Answer : A

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 penetrate the inner mitochondrial membrane (A) Freely (B) As acyl-CoA derivative (C) As carnitine derivative (D) Requiring Na dependent carrier

Last Answer : Answer : C

Activation of fatty acids requires all the following except (A) ATP (B) Coenzyme A (C) Thiokinase (D) Carnitine

Description : Activation of fatty acids requires all the following except (A) ATP (B) Coenzyme A (C) Thiokinase (D) Carnitine

Last Answer : Answer : D

All the following compounds are members of the electron transport chain except (A) Ubiquinone (B) Carnitine (C) NAD (D) FAD

Description : All the following compounds are members of the electron transport chain except (A) Ubiquinone (B) Carnitine (C) NAD (D) FAD

Last Answer : Answer : B

Sulphur is made available to the body by the amino acids: (A) Cystine and methionine (B) Taurine and alanine (C) Proline and hydroxyproline (D) Arginine and lysine MINERAL METABOLISM 191

Description : Sulphur is made available to the body by the amino acids: (A) Cystine and methionine (B) Taurine and alanine (C) Proline and hydroxyproline (D) Arginine and lysine MINERAL METABOLISM 191

Last Answer : Answer : A

With respect to lipoprotein transport and metabolism in the body, the following statements are correct EXCEPT: 1) Arterial walls contain cells with LDL receptors. 2) Cholesterol is required for the formation of red blood cell membranes. 3) Chylomicrons are synthesized in the liver. 4) HDL is assembled in the extracellular space. 5) VLDL transformation to LDL occurs in adipose tissue.

Description : With respect to lipoprotein transport and metabolism in the body, the following statements are correct EXCEPT: 1) Arterial walls contain cells with LDL receptors. 2) Cholesterol is required for the ... is assembled in the extracellular space. 5) VLDL transformation to LDL occurs in adipose tissue.

Last Answer : Answers-3 Chylomicrons are formed in the gut from exogenous triacylglycerols and cholesterol. They are released into the lymph and thereby enter the blood.They are not formed in the liver.

With respect to lipoprotein transport and metabolism in the body, the following statements are correct EXCEPT: 1) Arterial walls contain cells with LDL receptors. 2) Cholesterol is required for the formation of red blood cell membranes. 3) Chylomicrons are synthesized in the liver. 4) HDL is assembled in the extracellular space. 5) VLDL transformation to LDL occurs in adipose tissue.

Description : With respect to lipoprotein transport and metabolism in the body, the following statements are correct EXCEPT: 1) Arterial walls contain cells with LDL receptors. 2) Cholesterol is required for the ... is assembled in the extracellular space. 5) VLDL transformation to LDL occurs in adipose tissue.

Last Answer : Answers-3 Chylomicrons are formed in the gut from exogenous triacylglycerols and cholesterol. They are released into the lymph and thereby enter the blood.They are not formed in the liver.

The amino acids involved in the synthesis of creatin are (A) Arginine, glycine, active methionine (B) Arginine, alanine, glycine (C) Glycine, lysine, methionine (D) Arginine, lysine, methionine

Description : The amino acids involved in the synthesis of creatin are (A) Arginine, glycine, active methionine (B) Arginine, alanine, glycine (C) Glycine, lysine, methionine (D) Arginine, lysine, methionine

Last Answer : Answer : A

Long chain acyl CoA penetrates mitochondria in the presence of (A) Palmitate (B) Carnitine (C) Sorbitol (D) DNP

Description : Long chain acyl CoA penetrates mitochondria in the presence of (A) Palmitate (B) Carnitine (C) Sorbitol (D) DNP

Last Answer : Answer : B

All the following statements about acetyl CoA carboxylase are true except (A) It is required for de novo synthesis of fatty acids (B) It is required for mitochondrial elongation of fatty acids (C) It is required for microsomal elongation of fatty acids (D) Insulin converts its inactive form into its active form

Description : All the following statements about acetyl CoA carboxylase are true except (A) It is required for de novo synthesis of fatty acids (B) It is required for mitochondrial elongation of fatty acids ( ... for microsomal elongation of fatty acids (D) Insulin converts its inactive form into its active form

Last Answer : Answer : B

All the following statements about proopiomelanocortin are true except (A) It is made up of 285 amino acids (B) It is synthesised in pars intermedia and anterior lobe of pituitary gland (C) It is the precursor of ACTH and melatonin (D) It is the precursor of corticotropin like intermediate lobe peptide and endorphins 218 MCQs IN BIOCHEMISTRY

Description : All the following statements about proopiomelanocortin are true except (A) It is made up of 285 amino acids (B) It is synthesised in pars intermedia and anterior lobe of pituitary gland ... ) It is the precursor of corticotropin like intermediate lobe peptide and endorphins 218 MCQs IN BIOCHEMISTRY

Last Answer : Answer : C

The fatty acids can be transported into and out of mitochondria through (A) Active transport (B) Facilitated transfer (C) Non-facilitated transfer (D) None of these

Description : The fatty acids can be transported into and out of mitochondria through (A) Active transport (B) Facilitated transfer (C) Non-facilitated transfer (D) None of these

Last Answer : B

Long chain fatty acyl CoA esters are transported across the mitochondrial membrane by (A) cAMP (B) Prostaglandin (C) Carnitine (D) Choline

Description : Long chain fatty acyl CoA esters are transported across the mitochondrial membrane by (A) cAMP (B) Prostaglandin (C) Carnitine (D) Choline

Last Answer : Answer : C

Consider the following statements: 1. Normal diet should contain 75gm of fat. 2. Fatty acids should be a part of human diet. 3. The cells of the human body cannot synthesise any fatty acids. 4. Deficiency diseases develop due to the absence of unsaturated fatty acids called essential fatty acids. Which of the above statements are correct? (a) 1, 2 (b) 2, 3 (c) 1, 2, 3, 4 (d) 1, 2, 4

Description : Consider the following statements: 1. Normal diet should contain 75gm of fat. 2. Fatty acids should be a part of human diet. 3. The cells of the human body cannot synthesise any fatty acids. 4. Deficiency diseases develop due to the absence ... correct? (a) 1, 2 (b) 2, 3 (c) 1, 2, 3, 4 (d) 1, 2, 4

Last Answer : Ans:(b)

The major site for elongation of medium chain fatty acids is (A) Mitochondria (B) Cytosol (C) Microsomes (D) All of these

Description : The major site for elongation of medium chain fatty acids is (A) Mitochondria (B) Cytosol (C) Microsomes (D) All of these

Last Answer : Answer : C

Long chain fatty acids are first activated to acetyl-CoA in (A) Cytosol (B) Microsomes (C) Nucleus (D) Mitochondria

Description : Long chain fatty acids are first activated to acetyl-CoA in (A) Cytosol (B) Microsomes (C) Nucleus (D) Mitochondria

Last Answer : Answer : A

The main pathway for denovo synthesis of fatty acids occur in (A) Cytosol (B) Mitochondria (C) Microsomes (D) Nucleus

Description : The main pathway for denovo synthesis of fatty acids occur in (A) Cytosol (B) Mitochondria (C) Microsomes (D) Nucleus

Last Answer : Answer : A

Methionine is synthesized in human body from (A) Cysteine and homoserine (B) Homocysteine and serine (C) Cysteine and serine (D) None of these

Description : Methionine is synthesized in human body from (A) Cysteine and homoserine (B) Homocysteine and serine (C) Cysteine and serine (D) None of these

Last Answer : Answer : D

The first amino acid incorporated in a polypeptide in a ribosome of a human is (A) N formyl methionine (B) Methionine (C) Phenyl alanine (D) Hydroxy lysine

Description : The first amino acid incorporated in a polypeptide in a ribosome of a human is (A) N formyl methionine (B) Methionine (C) Phenyl alanine (D) Hydroxy lysine

Last Answer : Answer : B

Acetyl CoA required for extra mitochondrial fatty acid synthesis is produced by (A) Pyruvate dehydrogenase complex (B) Citrate lyase (C) Thiolase (D) Carnitine-acyl transferase

Description : Acetyl CoA required for extra mitochondrial fatty acid synthesis is produced by (A) Pyruvate dehydrogenase complex (B) Citrate lyase (C) Thiolase (D) Carnitine-acyl transferase

Last Answer : Answer : B

Fatty liver may be caused by (A) Deficiency of methionine (B) Puromycin (C) Chronic alcoholism (D) All of these

Description : Fatty liver may be caused by (A) Deficiency of methionine (B) Puromycin (C) Chronic alcoholism (D) All of these

Last Answer : Answer : D

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 insulin (C) NADH is required in synthesis and FAD in oxidation (D) Malonyl CoA is formed during oxidation but not during synthesis

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

Last Answer : Answer : A

The essential amino acids (A) must be supplied in the diet because the organism has lost the capacity to aminate the corresponding ketoacids (B) must be supplied in the diet because the human has an impaired ability to synthesize the carbon chain of the corresponding ketoacids (C) are identical in all species studied (D) are defined as these amino acids which cannot be synthesized by the organism at a rate adequate to meet metabolic requirements

Description : The essential amino acids (A) must be supplied in the diet because the organism has lost the capacity to aminate the corresponding ketoacids (B) must be supplied in the diet because the ... amino acids which cannot be synthesized by the organism at a rate adequate to meet metabolic requirements

Last Answer : Answer : B

The essential amino acids (A) Must be supplied in the diet because the organism has lost the capacity to aminate the corresponding ketoacids (B) Must be supplied in the diet because the human has an impaired ability to synthesize the carbon chain of the corresponding ketoacids (C) Are identical in all species studied (D) Are defined as those amino acids which cannot be synthesized by the organism at a rate adequate to meet metabolic requirements

Description : The essential amino acids (A) Must be supplied in the diet because the organism has lost the capacity to aminate the corresponding ketoacids (B) Must be supplied in the diet because the ... amino acids which cannot be synthesized by the organism at a rate adequate to meet metabolic requirements

Last Answer : Answer : B

A characteristic of protein synthesis in both the archaea and eukarya is A.transcription and translation are coupled B.translation is inhibited by diphtheria toxin C.proteins are synthesized from D-, rather than L-, isomers of amino acids D.the initiator tRNA is charged with N-formyl- methionine

Description : A characteristic of protein synthesis in both the archaea and eukarya is A.transcription and translation are coupled B.translation is inhibited by diphtheria toxin C.proteins are synthesized from D-, ... L-, isomers of amino acids D.the initiator tRNA is charged with N-formyl- methionine

Last Answer : C.proteins are synthesized from

A characteristic of protein synthesis in both the archaea and eukarya is A- transcription and translation are coupled B- translation is inhibited by diphtheria toxin C- .proteins are synthesized from D-, rather than L-, isomers of amino acids D- the initiator tRNA is charged with N-formyl-methionine

Description : A characteristic of protein synthesis in both the archaea and eukarya is A- transcription and translation are coupled B- translation is inhibited by diphtheria toxin C- .proteins are synthesized from D-, rather than L-, isomers of amino acids D- the initiator tRNA is charged with N-formyl-methionine

Last Answer : .proteins are synthesized from D-, rather than L-, isomers of amino acids

Fatty liver may be prevented by all of the following except (A) Choline (B) Betaine (C) Methionine (D) Ethionine

Description : Fatty liver may be prevented by all of the following except (A) Choline (B) Betaine (C) Methionine (D) Ethionine

Last Answer : Answer : D

All the following statements about brown adipose tissue are true except (A) It is rich in cytochromes (B) It oxidizes glucose and fatty acids (C) Oxidation and phosphorylation are tightly coupled in it (D) Dinitrophenol has no effect on it

Description : All the following statements about brown adipose tissue are true except (A) It is rich in cytochromes (B) It oxidizes glucose and fatty acids (C) Oxidation and phosphorylation are tightly coupled in it (D) Dinitrophenol has no effect on it

Last Answer : Answer : C

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 : Mitochondrial membrane is permeable to (A) Short chain fatty acids (B) Medium chain fatty acids (C) Long chain fatty acids (D) All of these

Last Answer : Answer : A

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 : Mitochondrial thiokinase acts on (A) Short chain of fatty acids (B) Medium chain fatty acids (C) Long chain fatty acids (D) All of these

Last Answer : Answer : A

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 : 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

Last Answer : Answer : A

Where will you find short and medium chain fatty acids?

Description : Where will you find short and medium chain fatty acids?

Last Answer : They are seen in butter, ghee, coconut oil and motherís milk.

Which amino acid is a lipotropic factor? (A) Lysine (B) Leucine (C) Tryptophan (D) Methionine

Description : Which amino acid is a lipotropic factor? (A) Lysine (B) Leucine (C) Tryptophan (D) Methionine

Last Answer : Answer : D

Which amino acid is a lipotropic factor? (A) Lysine (B) Lecuine (C) Tryptophan (D) Methionine

Description : Which amino acid is a lipotropic factor? (A) Lysine (B) Lecuine (C) Tryptophan (D) Methionine

Last Answer : Answer : D

An amino acid which contains a disulphide bond is (A) Lysine (B) Methionine (C) Homocysteine (D) Cystine

Description : An amino acid which contains a disulphide bond is (A) Lysine (B) Methionine (C) Homocysteine (D) Cystine

Last Answer : Answer : D

Which amino acid is a lipotropic factor? (A) Lysine (B) Leucine (C) Tryptophan (D) Methionine

Description : Which amino acid is a lipotropic factor? (A) Lysine (B) Leucine (C) Tryptophan (D) Methionine

Last Answer : Answer : D

Maize is poor in (A) Lysine (B) Methionine (C) Tryptophan (D) Lysine and tryptophan

Description : Maize is poor in (A) Lysine (B) Methionine (C) Tryptophan (D) Lysine and tryptophan

Last Answer : Answer : D

The limiting amino acid in pulses is (A) Leucine (B) Lysine (C) Tryptophan (D) Methionine

Description : The limiting amino acid in pulses is (A) Leucine (B) Lysine (C) Tryptophan (D) Methionine

Last Answer : Answer : D

The limiting amino acid in wheat is (A) Leucine (B) Lysine (C) Cysteine (D) Methionine

Description : The limiting amino acid in wheat is (A) Leucine (B) Lysine (C) Cysteine (D) Methionine

Last Answer : Answer : B

Pulses are rich in (A) Lysine (B) Methionine (C) Tryptophan (D) Phenylalanine

Description : Pulses are rich in (A) Lysine (B) Methionine (C) Tryptophan (D) Phenylalanine

Last Answer : Answer : A

Pulses are deficient in (A) Lysine (B) Threonine (C) Methionine (D) Tryptophan

Description : Pulses are deficient in (A) Lysine (B) Threonine (C) Methionine (D) Tryptophan

Last Answer : Answer : C

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 : 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

Last Answer : Answer : D

C22 and C24, fatty acids required for the synthesis of sphingolipids in brain are formed by (A) De novo synthesis (B) Microsomal chain elongation (C) Mitochondrial chain elongation (D) All of these

Description : C22 and C24, fatty acids required for the synthesis of sphingolipids in brain are formed by (A) De novo synthesis (B) Microsomal chain elongation (C) Mitochondrial chain elongation (D) All of these

Last Answer : Answer : B

All of the following statements about Tangier disease are true except (A) It is a disorder of HDL metabolism (B) Its inheritance is autosomal recessive (C) Apoproteins A-I and A-II are not synthesised (D) Plasma HDL is increased

Description : All of the following statements about Tangier disease are true except (A) It is a disorder of HDL metabolism (B) Its inheritance is autosomal recessive (C) Apoproteins A-I and A-II are not synthesised (D) Plasma HDL is increased

Last Answer : Answer : D

All of the following statements about nonsense codons are true except (A) They do not code for amino acids (B) They act as chain termination signals (C) They are identical in nuclear and mitochondrial DNA (D) They have no complementary anticodons

Description : All of the following statements about nonsense codons are true except (A) They do not code for amino acids (B) They act as chain termination signals (C) They are identical in nuclear and mitochondrial DNA (D) They have no complementary anticodons

Last Answer : Answer : C

All the following statements about transcortin are true except (A) It is synthesised in liver (B) It transports glucocorticoids (C) It transports aldosterone (D) It transports progesterone

Description : All the following statements about transcortin are true except (A) It is synthesised in liver (B) It transports glucocorticoids (C) It transports aldosterone (D) It transports progesterone

Last Answer : Answer : C