An enzyme is a (A) Carbohydrate (B) Lipid (C) Protein (D) Nucleic acid ENZYMES 171

An enzyme is a (A) Carbohydrate (B) Lipid (C) Protein (D) Nucleic acid ENZYMES 171
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Virus contains - (1) Protein and lipid (2) Nucleic acid and protein (3) Lipid and carbohydrate (4) Carbohydrate and nucleic acid

Description : Virus contains - (1) Protein and lipid (2) Nucleic acid and protein (3) Lipid and carbohydrate (4) Carbohydrate and nucleic acid

Last Answer : (1) Protein and lipid Explanation: Virus particles (known as virions) consist of two or three parts: the genetic material made from either DNA or RNA, long molecules that carry genetic ... cell. The shapes of viruses range from simple helical and icosahedra forms to more complex structures.

Virus contains (1) Protein and lipid (2) Nucleic acid and protein (3) Lipid and carbohydrate (4) Carbohydrate and nucleic acid

Description : Virus contains (1) Protein and lipid (2) Nucleic acid and protein (3) Lipid and carbohydrate (4) Carbohydrate and nucleic acid

Last Answer : Protein and lipid

Michaelis – Menten equation is used to explain the effect of substrate concentration on (A) Carbohydrate (B) Enzyme (C) Lipid (D) Protein

Description : Michaelis – Menten equation is used to explain the effect of substrate concentration on (A) Carbohydrate (B) Enzyme (C) Lipid (D) Protein

Last Answer : Answer : B

Humans most easily tolerate a lack of the nutrient: (A) Protein (B) Lipid (C) Iodine (D) Carbohydrate

Description : Humans most easily tolerate a lack of the nutrient: (A) Protein (B) Lipid (C) Iodine (D) Carbohydrate

Last Answer : Answer : D

Humans most easily tolerate a lack of which of the following nutrients? (A) Protein (B) Iodine (C) Carbohydrate (D) Lipid

Description : Humans most easily tolerate a lack of which of the following nutrients? (A) Protein (B) Iodine (C) Carbohydrate (D) Lipid

Last Answer : Answer : C

The building up and breaking down of protoplasm are concerned with the metabolism of (A) Carbohydrate (B) Lipid (C) Protein (D) Minerals

Description : The building up and breaking down of protoplasm are concerned with the metabolism of (A) Carbohydrate (B) Lipid (C) Protein (D) Minerals

Last Answer : Answer : C

Which one of the following is known as the ‘immovable property’ in the cell? (1) Carbohydrate (2) Fat (3) Protein (4) Nucleic acid

Description : Which one of the following is known as the ‘immovable property’ in the cell? (1) Carbohydrate (2) Fat (3) Protein (4) Nucleic acid

Last Answer : (4) Nucleic acid Explanation: Immovable property is an immovable object, an item of property that cannot be moved without destroying or altering it – property that is fixed to the earth, such as land or a house.

Viruses are made up of – (1) Protein and lipids (2) Nucleic and protein (3) Lipids and carbohydrate (4) Carbohydrate and Nucleic acid

Description : Viruses are made up of – (1) Protein and lipids (2) Nucleic and protein (3) Lipids and carbohydrate (4) Carbohydrate and Nucleic acid

Last Answer : (2) Nucleic and protein Explanation: A virus is made up of a core of genetic material, either DNA or RNA, surrounded by a protective coat called a capsid which is made up of protein.

The correct sequence for the manufacture of molecules/organic compounds on the primitive earth is (a) NH3, nucleic acid, protein and carbohydrate (b) protein, carbohydrate, water and nucleic acid (c) NH3, protein, carbohydrate and nucleic acid (d) NH3, water, nucleic acid and protein.

Description : The correct sequence for the manufacture of molecules/organic compounds on the primitive earth is (a) NH3, nucleic acid, protein and carbohydrate (b) protein, carbohydrate, water and nucleic acid (c) NH3, protein, carbohydrate and nucleic acid (d) NH3, water, nucleic acid and protein.

Last Answer : (d) NH3, water, nucleic acid and protein.

Viroids and prions differ in that viroids are believed to contain only ______, while prions are believed to contain only _______. a. carbohydrate; amino acids b. nucleic acid; protein c. amino acids; carbohydrate d. protein; nucleic acid

Description : Viroids and prions differ in that viroids are believed to contain only ______, while prions are believed to contain only _______. a. carbohydrate; amino acids b. nucleic acid; protein c. amino acids; carbohydrate d. protein; nucleic acid

Last Answer : b. nucleic acid; protein

Which one of the following is known as the ‘immovable property’ in the cell? (1) Carbohydrate (2) Fat (3) Protein (4) Nucleic acid

Description : Which one of the following is known as the ‘immovable property’ in the cell? (1) Carbohydrate (2) Fat (3) Protein (4) Nucleic acid

Last Answer : Nucleic acid

The hormone insulin is chemically a (a) fat (b) lipid (c) protein (d) carbohydrate

Description : The hormone insulin is chemically a (a) fat (b) lipid (c) protein (d) carbohydrate

Last Answer : Ans:(c)

Nitrogenous food is (1) Carbohydrate (2) Lipid (3) Protein (4) Salts

Description : Nitrogenous food is (1) Carbohydrate (2) Lipid (3) Protein (4) Salts

Last Answer : (3) Protein Explanation: All proteins contain nitrogen. Precisely, they contain about 16 per cent nitrogen. The determination of protein requirement is based,on nitrogen balance, which include total nitrogen in food and excreta.

Exon part of mRNAs have code for (a) protein (b) lipid (c) carbohydrate (d) phospholipid.

Description : Exon part of mRNAs have code for (a) protein (b) lipid (c) carbohydrate (d) phospholipid.

Last Answer : b) lipid

Exon part of mRNAs have code for (a) protein (b) lipid (c) carbohydrate (d) phospholipid.

Description : Exon part of mRNAs have code for (a) protein (b) lipid (c) carbohydrate (d) phospholipid.

Last Answer : (a) protein

Collagen is (a) fibrous protein (b) globular protein (c) lipid (d) carbohydrate.

Description : Collagen is (a) fibrous protein (b) globular protein (c) lipid (d) carbohydrate.

Last Answer : (a) fibrous protein

Pepsin acts on : (a) Protein (b) Lipid (c) Carbohydrate (d) All these

Description : Pepsin acts on : (a) Protein (b) Lipid (c) Carbohydrate (d) All these

Last Answer : (a) Protein

Nitrogenous food is (1) Carbohydrate (2) Lipid (3) Protein (4) Salts

Description : Nitrogenous food is (1) Carbohydrate (2) Lipid (3) Protein (4) Salts

Last Answer : Protein

For biosynthesis of proteins (A) Amino acids only are required (B) Amino acids and nucleic acids only are required (C) Amino acid, nucleic acids and ATP only are required (D) Amino acids, nucleic acids, ATP, GTP, enzymes and activators are required

Description : For biosynthesis of proteins (A) Amino acids only are required (B) Amino acids and nucleic acids only are required (C) Amino acid, nucleic acids and ATP only are required (D) Amino acids, nucleic acids, ATP, GTP, enzymes and activators are required

Last Answer : Answer : D

Which one is common amongst nucleus, chloroplast and mitochondria? (a) Cristae (b) Thylakoids (c) Nucleic acid (d) Carbohydrate metabolism

Description : Which one is common amongst nucleus, chloroplast and mitochondria? (a) Cristae (b) Thylakoids (c) Nucleic acid (d) Carbohydrate metabolism

Last Answer : Ans. ((c))

Ribozymes: (A) RNA enzyme (B) Non-protein enzymes (C) Catalyst function (D) All of these

Description : Ribozymes: (A) RNA enzyme (B) Non-protein enzymes (C) Catalyst function (D) All of these

Last Answer : Answer : D

In biotin-containing enzymes, the biotin is bound to the enzyme by (A) An amide linkage to carboxyl group of glutamine (B) A covalent bond with CO2 (C) An amide linkage to an amino group of lysine (D) An amide linkage to α-carboxyl group of protein

Description : In biotin-containing enzymes, the biotin is bound to the enzyme by (A) An amide linkage to carboxyl group of glutamine (B) A covalent bond with CO2 (C) An amide linkage to an amino group of lysine (D) An amide linkage to α-carboxyl group of protein

Last Answer : Answer : C

Deficiency of urea cycle enzymes results into accumulation of citrulline argininosuccinate arginine in the liver resulting in increasing concentration of …….. in the blood. (A) Calcium (B) Sodium (C) Ammonia (D) Lipid

Description : Deficiency of urea cycle enzymes results into accumulation of citrulline argininosuccinate arginine in the liver resulting in increasing concentration of …….. in the blood. (A) Calcium (B) Sodium (C) Ammonia (D) Lipid

Last Answer : Answer : C

Lysosome enzymes can degrade a. Proteins b. Carbohydrates c. nucleic acid d. all

Description : Lysosome enzymes can degrade a. Proteins b. Carbohydrates c. nucleic acid d. all

Last Answer : all

By which of the following means antifungal chemotherapeutic agents may affect fungi? A- Interfere with nuclear division by preventing the aggregation of microtubules needed for mitosis B- Interfere with normal nucleic acid synthesisInterfere with ergosterol biosynthesis and thus alter the structure of the cytoplasmic C- membrane as well as the function of several membrane-bound enzymes like thoseinvolved in nutrient transport and chitin synthesis D- all of these

Description : By which of the following means antifungal chemotherapeutic agents may affect fungi? A- Interfere with nuclear division by preventing the aggregation of microtubules needed for mitosis B- ... membrane-bound enzymes like thoseinvolved in nutrient transport and chitin synthesis D- all of these

Last Answer : all of these

Animals do not have enzyme systems which enable them to make use of the energy from - (1) fat (2) water (3) protein (4) carbohydrate

Description : Animals do not have enzyme systems which enable them to make use of the energy from - (1) fat (2) water (3) protein (4) carbohydrate

Last Answer : (1) fat Explanation: Although fat is a common way of storing energy. In vertebrates such as humans the fatty acids in these stores cannot be conberted to glucose through gluconeogenesis as these organisms cannot convert acetyl CoA in to pyruvate plants do.

Choose the correct enzyme - substrate pair. (a) Carbohydrate - Lipase (b) Maltase - Lactose (c) Rennin - Casein (d) Protein - Amylase

Description : Choose the correct enzyme - substrate pair. (a) Carbohydrate - Lipase (b) Maltase - Lactose (c) Rennin - Casein (d) Protein - Amylase

Last Answer : (c) Rennin - Casein

Animals do not have enzyme systems which enable them to make use of the energy from : (1) fat (2) water (3) protein (4) carbohydrate

Description : Animals do not have enzyme systems which enable them to make use of the energy from : (1) fat (2) water (3) protein (4) carbohydrate

Last Answer : fat

Flagella are a. Made of carbohydrate and lipid. b. Found on all bacterial cells. c. Contain dextran fiber d. Important for chemo taxis.

Description : Flagella are a. Made of carbohydrate and lipid. b. Found on all bacterial cells. c. Contain dextran fiber d. Important for chemo taxis.

Last Answer : d. Important for chemo taxis.

Structurally silk is (a) a polyamide (b) a polyester (c) an enzyme (d) a nucleic acid

Description : Structurally silk is (a) a polyamide (b) a polyester (c) an enzyme (d) a nucleic acid

Last Answer : Ans:(a)

Magnesium is a constituent of : (A) Nucleic Acid (B) Enzyme system (C) Cell wall (D) Chlorophyll

Description : Magnesium is a constituent of : (A) Nucleic Acid (B) Enzyme system (C) Cell wall (D) Chlorophyll

Last Answer : (D) Chlorophyll

If all the enzymes, intermediates and cofactors of the citric acid cycle as well as an excess of the starting substrate acetylCoA are present and functional in an organelle free solution at the appropriate pH, which of the following factors of the citric acid cycle would prove to be rate limiting? (A) Molecular oxygen (B) Half life of enzyme (C) Turnover of intermediates (D) Reduction of cofactors

Description : If all the enzymes, intermediates and cofactors of the citric acid cycle as well as an excess of the starting substrate acetylCoA are present and functional in an organelle free solution at the appropriate ... oxygen (B) Half life of enzyme (C) Turnover of intermediates (D) Reduction of cofactors

Last Answer : Answer : D

Which nucleic acid is necessary for protein biosynthesis?

Description : Which nucleic acid is necessary for protein biosynthesis?

Last Answer : Ans. RNA

Which of the following statement(s) is/are true concerning translation of the mRNA message to protein synthesis? a. An adaptor molecule, tRNA, recognizes specific nucleic acid bases and unites them with specific amino acids b. Covalent attachment of tRNA to amino acids is energy dependent c. The formation of a peptide bond between the growing peptide chain and the free amino acid occurs in the free cytoplasm d. Complete protein synthesis takes hours

Description : Which of the following statement(s) is/are true concerning translation of the mRNA message to protein synthesis? a. An adaptor molecule, tRNA, recognizes specific nucleic acid bases and unites them ... and the free amino acid occurs in the free cytoplasm d. Complete protein synthesis takes hours

Last Answer : Answer: a, b The synthesis of protein involves conversion from a four-letter nucleotide language to one of 20 chemically distinct amino acids. This process is referred to as ... translation and be moving down the mRNA molecules simultaneously, thus increasing the rate of protein synthesis

Which nucleic acid is mainly responsi- ble for the synthesis of protein?

Description : Which nucleic acid is mainly responsi- ble for the synthesis of protein?

Last Answer : Ribo nucleic Acid (RNA)

The pyrenoids are made up of (a) proteinaceous centre and starchy sheath (b) core of nucleic acid surrounded by protein sheath (c) core of protein surrounded by fatty sheath (d) core of starch surrounded by sheath of protein.

Description : The pyrenoids are made up of (a) proteinaceous centre and starchy sheath (b) core of nucleic acid surrounded by protein sheath (c) core of protein surrounded by fatty sheath (d) core of starch surrounded by sheath of protein.

Last Answer : a) proteinaceous centre and starchy sheath

Which one of the following pairs is mismatched? a. Protein - amino acids b. Nucleic acid - nucleotides c. Fats - glycogen d. Starch - glucose

Description : Which one of the following pairs is mismatched? a. Protein - amino acids b. Nucleic acid - nucleotides c. Fats - glycogen d. Starch - glucose

Last Answer : c. Fats - glycogen

Enzymes (a protein) are catalysts found in organisms. Its efficiency of catalysing a reaction is due to its capacity to lower the activation energy of the reaction. The enzyme ptyalin used for food digestion is present in (A) Blood (B) Saliva (C) Intestine (D) Gland

Description : Enzymes (a protein) are catalysts found in organisms. Its efficiency of catalysing a reaction is due to its capacity to lower the activation energy of the reaction. The enzyme ptyalin used for food digestion is present in (A) Blood (B) Saliva (C) Intestine (D) Gland

Last Answer : (B) Saliva

Induction of drug metabolizing enzymes involves: A. A conformational change in the enzyme protein to favour binding of substrate molecules B. Expression of enzyme molecules on the surface of hepatocytes C. Enhanced transport of substrate molecules into hepatocytes D. Increased synthesis of enzyme protein

Description : Induction of drug metabolizing enzymes involves: A. A conformational change in the enzyme protein to favour binding of substrate molecules B. Expression of enzyme molecules on the surface of ... C. Enhanced transport of substrate molecules into hepatocytes D. Increased synthesis of enzyme protein

Last Answer : D. Increased synthesis of enzyme protein

Induction of drug metabolizing enzymes involves: A. A conformational change in the enzyme protein to favour binding of substrate molecules B. Expression of enzyme molecules on the surface of hepatocytes C. Enhanced transport of substrate molecules into hepatocytes D. Increased synthesis of enzyme protein

Description : Induction of drug metabolizing enzymes involves: A. A conformational change in the enzyme protein to favour binding of substrate molecules B. Expression of enzyme molecules on the surface of ... C. Enhanced transport of substrate molecules into hepatocytes D. Increased synthesis of enzyme protein

Last Answer : D. Increased synthesis of enzyme protein

The cell wall of both bacteria and cyanobactena contains: (a) Lipid (b) Pectin (c) Protein (d) muramic acid

Description : The cell wall of both bacteria and cyanobactena contains: (a) Lipid (b) Pectin (c) Protein (d) muramic acid

Last Answer : Ans. ((d))

The major organic cementing agent in soil aggregate formation is a. Protein b. Lipid c. Polysaccharides d. Organic acid

Description : The major organic cementing agent in soil aggregate formation is a. Protein b. Lipid c. Polysaccharides d. Organic acid

Last Answer : c. Polysaccharides

The last step in synthesis of peptidoglycan is A- attachment of a peptide to muramic acid B- attaching two amino acids to form a cross-link C- attachment of a portion of peptidoglycan to a membrane lipid D- binding of penicillin to a membrane protein

Description : The last step in synthesis of peptidoglycan is A- attachment of a peptide to muramic acid B- attaching two amino acids to form a cross-link C- attachment of a portion of peptidoglycan to a membrane lipid D- binding of penicillin to a membrane protein

Last Answer : attaching two amino acids to form a cross-link

Enzymes are (a) Carbohydrates (b) Proteins (c) Fatty acids (d) Nucleic acids

Description : Enzymes are (a) Carbohydrates (b) Proteins (c) Fatty acids (d) Nucleic acids

Last Answer : Ans:(b)

Lysosomes are rich in (a) nucleic acids (b) hydrolytic enzymes (c) carbohydrates (d) hormones.

Description : Lysosomes are rich in (a) nucleic acids (b) hydrolytic enzymes (c) carbohydrates (d) hormones.

Last Answer : (b) hydrolytic enzymes

In what category may LIPASE (pron: lie-pase) be placed w) carbohydrates x) lipids y) enzymes z) nucleic acids

Description : In what category may LIPASE (pron: lie-pase) be placed w) carbohydrates x) lipids y) enzymes z) nucleic acids

Last Answer : ANSWER: C--ENZYMES

TSH hormone biochemically is a (A) Protein (B) Fat (C) Glycoprotein (D) Carbohydrate 232 MCQs IN BIOCHEMISTRY

Description : TSH hormone biochemically is a (A) Protein (B) Fat (C) Glycoprotein (D) Carbohydrate 232 MCQs IN BIOCHEMISTRY

Last Answer : Answer : C

Atherosclerosis and coronary heart diseases are associated with the diet: (A) High in total fat and saturated fat (B) Low in protein (C) High in protein (D) High in carbohydrate

Description : Atherosclerosis and coronary heart diseases are associated with the diet: (A) High in total fat and saturated fat (B) Low in protein (C) High in protein (D) High in carbohydrate

Last Answer : Answer : A

The metabolism of protein is integrated with that of carbohydrate and fat through (A) Oxaloacetate (B) Citrate (C) Isocitrate (D) Malate

Description : The metabolism of protein is integrated with that of carbohydrate and fat through (A) Oxaloacetate (B) Citrate (C) Isocitrate (D) Malate

Last Answer : Answer : A

The protein, which is in fact a multifunctional enzyme complex in higher organism is (A) Acetyl transacylase (B) Malonyl transacylase (C) 3-Hydroxy acyl-ACP dehyratase (D) Fatty acid synthase

Description : The protein, which is in fact a multifunctional enzyme complex in higher organism is (A) Acetyl transacylase (B) Malonyl transacylase (C) 3-Hydroxy acyl-ACP dehyratase (D) Fatty acid synthase

Last Answer : Answer : D