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

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
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Chain elongation of fatty acids in mammalian liver occurs in (A) Nucleus (B) Ribosomes (C) Lysosomes (D) Microsomes

Description : Chain elongation of fatty acids in mammalian liver occurs in (A) Nucleus (B) Ribosomes (C) Lysosomes (D) Microsomes

Last Answer : Answer : D

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

Epinephrine increases the concentration of free fatty acids in plasma by increasing (A) Extramitochondrial fatty acid synthesis (B) Mitochondrial fatty acid chain elongation (C) Microsomal fatty acid chain elongation (D) Lipolysis in adipose tissue

Description : Epinephrine increases the concentration of free fatty acids in plasma by increasing (A) Extramitochondrial fatty acid synthesis (B) Mitochondrial fatty acid chain elongation (C) Microsomal fatty acid chain elongation (D) Lipolysis in adipose tissue

Last Answer : Answer : D

The desaturation and chain elongation system of polyunsaturated fatty acids are greatly diminished in the absence of (A) Insulin (B) Glycagon (C) Epinephrine (D) Thyroxine

Description : The desaturation and chain elongation system of polyunsaturated fatty acids are greatly diminished in the absence of (A) Insulin (B) Glycagon (C) Epinephrine (D) Thyroxine

Last Answer : Answer : A

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

Long chain fatty acids are first activated to acyl CoA in the (A) Cytosol (B) Mitochodria (C) Ribosomes (D) Microsome

Description : Long chain fatty acids are first activated to acyl CoA in the (A) Cytosol (B) Mitochodria (C) Ribosomes (D) Microsome

Last Answer : Answer : A

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 : Oxidation of fatty acids occurs (A) In the cytosol (B) In the matrix of mitochondria (C) On inner mitochondrial membrane (D) On the microsomes

Last Answer : Answer : B

De hovo synthesis of fatty acids occurs in (A) Cytosol (B) Mitochondria (C) Microsomes (D) All of these

Description : De hovo synthesis of fatty acids occurs in (A) Cytosol (B) Mitochondria (C) Microsomes (D) All of these

Last Answer : Answer : A

The biosynthesis of Urea occurs mainly in the Liver: (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

What is the subcellular site for the biosynthesis of proteins? (A) Chromosomes (B) Lymosomes (C) Ribosomes (D) Centrosomes

Description : What is the subcellular site for the biosynthesis of proteins? (A) Chromosomes (B) Lymosomes (C) Ribosomes (D) Centrosomes

Last Answer : Answer : C

Chain elongation of fatty acid is taking place in which site?

Description : Chain elongation of fatty acid is taking place in which site?

Last Answer : Microsomal elongation system is more active.

Lactate dehydrogenase is located in (A) Lysosomes (B) Mitochondria (C) Cytosol (D) Microsomes

Description : Lactate dehydrogenase is located in (A) Lysosomes (B) Mitochondria (C) Cytosol (D) Microsomes

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

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

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

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

The desaturation and chain elongation system of polyunsaturated fatty acid are enhanced by (A) Insulin (B) Glucagon (C) Epinephrine (D) Thyroxine

Description : The desaturation and chain elongation system of polyunsaturated fatty acid are enhanced by (A) Insulin (B) Glucagon (C) Epinephrine (D) Thyroxine

Last Answer : Answer : A

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

De novo synthesis of pyrimidine nucleotides occurs in (A) Mitochondria (B) Cytosol (C) Microsomes (D) Ribosomes

Description : De novo synthesis of pyrimidine nucleotides occurs in (A) Mitochondria (B) Cytosol (C) Microsomes (D) Ribosomes

Last Answer : Answer : B

In cell, digestive enzymes are found mainly in (A) Vacuoles (B) Lysosomes (C) Ribosomes (D) Lomasomes

Description : In cell, digestive enzymes are found mainly in (A) Vacuoles (B) Lysosomes (C) Ribosomes (D) Lomasomes

Last Answer : Answer : B

Oxidative conversion of many amino acids to their corresponding -ketoacids occurs in mammalian: (A) Liver and kidney (B) Adipose tissue (C) Pancreas (D) Intestine

Description : Oxidative conversion of many amino acids to their corresponding -ketoacids occurs in mammalian: (A) Liver and kidney (B) Adipose tissue (C) Pancreas (D) Intestine

Last Answer : Answer : A

ω-oxidation takes place by the hydroxylase in microsomes involving (A) Cytochrome b (B) Cytochrome c (C) Cytochrome p-4500(D) Cytochrome a3

Description : ω-oxidation takes place by the hydroxylase in microsomes involving (A) Cytochrome b (B) Cytochrome c (C) Cytochrome p-4500(D) Cytochrome a3

Last Answer : Answer : C

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 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

Last Answer : Answer : C

Monooxygenases are found in (A) Cytosol (B) Nucleus (C) Mitochondira (D) Microsomes

Description : Monooxygenases are found in (A) Cytosol (B) Nucleus (C) Mitochondira (D) Microsomes

Last Answer : Answer : D

Glycolytic pathway is located in (A) Mitochondria (B) Cytosol (C) Microsomes (D) Nucleus

Description : Glycolytic pathway is located in (A) Mitochondria (B) Cytosol (C) Microsomes (D) Nucleus

Last Answer : Answer : B

The role of transfer RNS (IRNA) is to (a) Transfer mRNA from the nucleus to the cytoplasm (b) Carry amino acids from the cytoplasm to the nucleus (c) Carry the newly synthesised protein to its site of function in the cell (d) Transport amino acids to ribosomes

Description : The role of transfer RNS (IRNA) is to (a) Transfer mRNA from the nucleus to the cytoplasm (b) Carry amino acids from the cytoplasm to the nucleus (c) Carry the newly synthesised protein to its site of function in the cell (d) Transport amino acids to ribosomes

Last Answer : Ans:(d)

The mammalian cell that are known not to contain lysosomes are a. WBc b. RBc c. Platellet d. none of them

Description : The mammalian cell that are known not to contain lysosomes are a. WBc b. RBc c. Platellet d. none of them

Last Answer : RBc

Photosynthesis takes place inside plant cells in ______. (1) Ribosomes (2) Chloroplasts (3) Nucleus (4) Mitochondria

Description : Photosynthesis takes place inside plant cells in ______. (1) Ribosomes (2) Chloroplasts (3) Nucleus (4) Mitochondria

Last Answer : (2) Chloroplasts Explanation: In plants, the process of photosynthesis takes place in the mesophyll of the leaves, inside the chloroplasts.

The biosynthesis of urea occurs mainly in the liver: (A) Cytosol (B) Mitochondria (C) Microsomes (D) Nuclei

Description : The biosynthesis of urea occurs mainly in the liver: (A) Cytosol (B) Mitochondria (C) Microsomes (D) Nuclei

Last Answer : Answer : B

In eukaryotic cells (A) Formylated tRNA is important for initiation of translation (B) Cyclohexamide blocks elongation during translation (C) Cytosolic ribosomes are smaller than those found in prokaryotes (D) Erythromycin inhibits elongation during translation

Description : In eukaryotic cells (A) Formylated tRNA is important for initiation of translation (B) Cyclohexamide blocks elongation during translation (C) Cytosolic ribosomes are smaller than those found in prokaryotes (D) Erythromycin inhibits elongation during translation

Last Answer : Answer : B

Extranuclear DNA is present in (A) Ribosomes (B) Endoplasmic reticulum (C) Lysosomes (D) Mitochondria

Description : Extranuclear DNA is present in (A) Ribosomes (B) Endoplasmic reticulum (C) Lysosomes (D) Mitochondria

Last Answer : Answer : D

The d igest ive enzymes of ce l lu lar compounds are confined to (A) Lysosomes (B) Ribosomes (C) Peroxisomes (D) Polysomes

Description : The d igest ive enzymes of ce l lu lar compounds are confined to (A) Lysosomes (B) Ribosomes (C) Peroxisomes (D) Polysomes

Last Answer : A

Enzymes catalyzing electron transport are present mainly in the (A) Ribosomes (B) Endoplasmic reticulum (C) Lysosomes (D) Inner mitochondrial membrane

Description : Enzymes catalyzing electron transport are present mainly in the (A) Ribosomes (B) Endoplasmic reticulum (C) Lysosomes (D) Inner mitochondrial membrane

Last Answer : D

The cellular organelles called “suicide bags” are (A) Lysosomes (B) Ribosomes (C) Nucleolus (D) Golgi’s bodies

Description : The cellular organelles called “suicide bags” are (A) Lysosomes (B) Ribosomes (C) Nucleolus (D) Golgi’s bodies

Last Answer : A

The power house of the cell is (A) Nucleus (B) Cell membrane (C) Mitochondria (D) Lysosomes

Description : The power house of the cell is (A) Nucleus (B) Cell membrane (C) Mitochondria (D) Lysosomes

Last Answer : C

Which of the following statements is not true about fatty acids? (a) Fatty acids are carboxylic acids with long hydrocarbon side chains. (b) The double bonds in unsaturated fatty acids are always conjugated. (c) Most naturally occurring fatty acids contain even numbers of carbons and are unbranched. (d) Fatty acids can be saturated or unsaturated

Description : Which of the following statements is not true about fatty acids? (a) Fatty acids are carboxylic acids with long hydrocarbon side chains. (b) The double bonds in unsaturated fatty acids are always ... contain even numbers of carbons and are unbranched. (d) Fatty acids can be saturated or unsaturated

Last Answer : The double bonds in unsaturated fatty acids are always conjugated

Which of the following cell organelles are not found in a bacterial cell? 1. Glyoxysomes 2. Lysosomes 3. Mitochondria 4. Ribosomes Select the correct answer using codes given below: (a) 1 and 4 (b) 2 and 4 (c) 1, 2 and 3 (d) 1, 2, 3 and 4

Description : Which of the following cell organelles are not found in a bacterial cell? 1. Glyoxysomes 2. Lysosomes 3. Mitochondria 4. Ribosomes Select the correct answer using codes given below: (a) 1 and 4 (b) 2 and 4 (c) 1, 2 and 3 (d) 1, 2, 3 and 4

Last Answer : Ans:(a)

The suicidal bags of the cell are – (1) Lysosomes (2) Ribosomes (3) Dictyosomes (4) Phagosomes

Description : The suicidal bags of the cell are – (1) Lysosomes (2) Ribosomes (3) Dictyosomes (4) Phagosomes

Last Answer : (1) Lysosomes Explanation: Lysosomes are called the suicide bags of the cells they contain digestive enzymes, and break down food, cellular debris and foreign invaders like bacteria. When the cell is injured beyond ... old, the lysosome digests the cell. So, it is called "suicide bag of the cell."

Which of the following is known as ‘suicide bags of the cell’? (1) Mitochondria (2) Golgi Bodies (3) Lysosomes (4) Ribosomes

Description : Which of the following is known as ‘suicide bags of the cell’? (1) Mitochondria (2) Golgi Bodies (3) Lysosomes (4) Ribosomes

Last Answer : (3) Lysosomes Explanation: Lysosomes are a kind of waste disposal system of the cell. It contains digestive enzymes for almost all types of organic materials.

Which of the following organelles are called the Protein Factories of the cell? (1) Chloroplasts (2) Lysosomes (3) Mitochondria (4) Ribosomes

Description : Which of the following organelles are called the Protein Factories of the cell? (1) Chloroplasts (2) Lysosomes (3) Mitochondria (4) Ribosomes

Last Answer : (4) Ribosomes Explanation: The ribosome works as the protein factory in every living cell. It gathers amino acids and assembles them into protein chains to make almost anything the cell needs.

The part of the cell which binds to the mRNA during protein systhesis is C A. Golgi bodies B. Lysosomes C. Ribosomes D. Food vacuoles

Description : The part of the cell which binds to the mRNA during protein systhesis is C A. Golgi bodies B. Lysosomes C. Ribosomes D. Food vacuoles

Last Answer : Ribosome

Which part of the plant cell is known as power house? (A)Golgi bodies (B) Ribosomes (C)Mitochondria (D) Lysosomes

Description : Which part of the plant cell is known as power house? (A)Golgi bodies (B) Ribosomes (C)Mitochondria (D) Lysosomes

Last Answer : (C)Mitochondria

The suicidal bags of the cell are (1) Lysosomes (2) Ribosomes (3) Dictyosomes (4) Phagosomes

Description : The suicidal bags of the cell are (1) Lysosomes (2) Ribosomes (3) Dictyosomes (4) Phagosomes

Last Answer : Lysosomes

Ketogenesis is taking place in which subcellular organelle?

Description : Ketogenesis is taking place in which subcellular organelle?

Last Answer : Mitochondria.

What is the sub cellular site for the βoxidation of fatty acids? (A) Nucleus (B) Mitochondria (C) Lysosome (D) Cytosol

Description : What is the sub cellular site for the βoxidation of fatty acids? (A) Nucleus (B) Mitochondria (C) Lysosome (D) Cytosol

Last Answer : Answer : B

Fatty liver is caused due to accumulation of (A) Fatty acids (B) Cholesterol (C) Phospholipids (D) Triacylglycerol

Description : Fatty liver is caused due to accumulation of (A) Fatty acids (B) Cholesterol (C) Phospholipids (D) Triacylglycerol

Last Answer : Answer : D

Retinal exists as an ester with higher fatty acids in the (A) Liver (B) Kidney (C) Lung (D) All of these

Description : Retinal exists as an ester with higher fatty acids in the (A) Liver (B) Kidney (C) Lung (D) All of these

Last Answer : Answer : D

The enzyme systems for lengthening and shortening for saturating and desaturating of fatty acids occur in (A) Intestine (B) Muscle (C) Kidney (D) Liver

Description : The enzyme systems for lengthening and shortening for saturating and desaturating of fatty acids occur in (A) Intestine (B) Muscle (C) Kidney (D) Liver

Last Answer : Answer : D

α-Oxidation of fatty acids occurs mainly in (A) Liver (B) Brain (C) Muscles (D) Adipose tissue

Description : α-Oxidation of fatty acids occurs mainly in (A) Liver (B) Brain (C) Muscles (D) Adipose tissue

Last Answer : Answer : B