A. Sucrose
B. Maltose
C. Lactose
D. Cellobiose
# The enzyme used during fermentation of carbohydrate to CO2 and alcohol is:
A. Zymase
B. Diastase
C. Invertase
D. Maltase
# Which is not a carbohydrate?
A. Starch
B. Cellulose
C. Glycogen
D. Hemoglobin
# Which of the following is not a polysaccharide?
A. Starch
B. Cellulose
C. Glycogen
D. Maltose
# Which of the following is a polysaccharide?
A. Isomaltose
B. Cellobiose
C. Lactose
D. Inulin
# Hydrolysis of table sugar produces:
A. Two molecules of glucose
B. Glucose and fructose
C. Glucose and galactose
D. Glucose and lactose
# Which of the following base is purine?
A. Thymine
B. Uracil
C. Cytosine
D. Adenine
# Which enzyme is used during the production of alcohol from carbohydrates by fermentation?
A. Invertase
B. Zymase
C. Starch
D. Molasses
# Which of the following is an aldohexose?
A. Cellulose
B. Sucrose
C. Galactose
D. Raffinose
# Molisch's test is given by:
A. Glucose
B. Fructose
C. Sucrose
D. All of the above
# Maltose on hydrolysis produces:
A. Glucose
B. Fructose
C. Glucose and Fructose
D. Glucose and Galactose
# Which of the following cannot form peptide bond on polypeptide chain?
A. Aspartic acid
B. Glutamic acid
C. Alanine
D. Acetic acid
# Amino acids usually exist in the form of zwitter ions. This means that they consist of:
A. The basic NH2 group and acidic COOH group
B. The basic NH3 group and the acidic COO- group
C. The basic COO- group and the acidic NH3+ group
D. Positive ammonium [NH4+] group and negative chloride [Cl-] group
# Isoelectric point is the pH at which:
A. Amino acid becomes acidic
B. Amino acid becomes basic
C. Zwitter ion has +ve charge
D. Zwitter ion has zero charge
# The enzyme pepsin hydrolyses:
A. Proteins to amino acids
B. Fats to fattty acids
C. Starch to glucose
D. Nucleotide to nitrogen base
# Presence of peptide bond is the characteristic features of:
A. Carbohydrates
B. Lipids
C. Nucleic acid
D. Proteins
# Lipids consist up of:
A. Fat, oil and its derivatives
B. Amino acid derivatives
C. Polystyrene
D. Carbohydrates
# Enzyme is a:
A. Hormone
B. Protein
C. Fatty acid
D. Steroid
# DNA multiplication is called:
A. Translation
B. Transduction
C. Transcription
D. Replication
# The purine base present in RNA is:
A. Uracil
B. Cytosine
C. Thymine
D. Guanine
# Glycolipids and phospholipids are:
A. Simple lipids
B. Complex lipids
C. Derived lipids
D. Lipoproteins
# Milk sugar is:
A. Maltose
B. Fructose
C. Sucrose
D. Lactose
# Starch is hydrolyzed to maltose by an enzyme:
A. Lipase
B. Diastase
C. Zymase
D. Invertase
# Which of the following is the sweetest sugar?
A. Sucrose
B. Glucose
C. Fructose
D. Maltose
# Hydrolysis of sucrose is called:
A. Inhibition
B. Saponification
C. Inversion
D. Hydration
# Alkaline hydrolysis of esters is known as:
A. Esterification
B. Saponification
C. Dehydration
D. Alkalinization
# Which of the following enzymes hydrolyses triglycerides to fatty acid and glycerol ?
A. Amylase
B. Maltase
C. Lipase
D. Pepsin
# Fat is a:
A. Lipid
B. Protein
C. Carbohydrate
D. Amino acids
# Two complementary strands of DNA in a double helix are joined to each other by:
A. Glycosidic bond
B. Phosphodiester bond
C. Hydrogen bond
D. Peptide
# The main function of RNA in the body is:
A. Transmission of hereditary characteristics
B. Protein synthesis
C. acts as second messenger
D. maintenance of chromosomal length
# Upon hydrolysis protein gives:
A. Fatty acids
B. Amino acids
C. Hydroxyacids
D. Alcohols
# Liquid fats are converted into solid fats by:
A. Hydrogenation
B. Saponification
C. Hydrolysis
D. Oxidation of double bond
# Synthetic detergents can be represented by the general formula:
A. RONa
B. ROSO3Na
C. RCOONa
D. RCOOH
# The degree of unsaturation of fat can be determined by means of:
A. Iodine number
B. Octane number
C. Saponification number
D. Melting point
# Fats and Oil are:
A. Monoesters of glycerol
B. Diesters of glycerol
C. Triesters of glycerol
D. Diesters of glycol
# Magnesium is present in :
A. Vitamin C
B. Vitamin B12
C. Hemoglobin
D. Chlorophyll
# Which of the following metal ion play an important role in muscle contraction?
A. K+
B. Na+
C. Mg++
D. Ca++
# Antimony compounds are used in treatment of:
A. Kala Azar
B. Filaria
C. Sleeping disorders
D. Chagas disease
# The cation necessary for coagulation of blood is:
A. Na
B. Ca
C. K
D. Cl
# Yeast is an important source of:
A. Sugar
B. Protein
C. Riboflavin
D. Hemoglobin
# Fatty acids which must be obtained from diet are called:
A. Essential fatty acids
B. Non essential fatty acids
C. Saturated fatty acids
D. Unsaturated fatty acids
# The sugar present in DNA is:
A. Monosaccharide
B. Disaccharide
C. Polysaccharide
D. Complex sugar
# The component of blood which maintain osmotic pressure is:
A. Mineral salt
B. RBCs
C. Blood Platelets
D. Albumin
# The enzyme pepsin hydrolyzes:
A. Proteins to amino acids
B. Fats to fatty acids
C. Starch to glucose
D. Nucleotides to nitrogen bases
# The sugar present in DNA is:
A. Hexose
B. Ribose
C. Deoxyribose
D. Glucose
# To become a carbohydrate, a compound must contain at least:
A. 2 carbons
B. 3 carbons
C. 4 carbons
D. 6 carbons
# Which of the following is an example of ketohexose?
A. Mannose
B. Galactose
C. Fructose
D. Maltose
# Cerebral beri-beri is caused by deficiency of:
A. Thiamine
B. Riboflavin
C. Thymine
D. Pyridoxine
# Biuret test is used for the detection of:
A. Saturated oils
B. Sugars
C. Proteins
D. Fats
# The metal present in blood is:
A. Co
B. Fe
C. Hg
D. Mg
# Which of the following Vitamins is Water soluble?
A. Vit A
B. Vit B
C. Vit E
D. Vit K
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