Question QFB1 : The group of enzymes that cleave without the addition of water is known as ______
Answer: Lyases

Question QFB2 : Low molecular weight organic substances which enzymes could require for their catalytic activities are known as ____
Answer: Coenzymes

Question QFB3 : The enzyme substrate theory in which the enzymes undergoes a conformation change to which the substrate binds is known as ____________
Answer: induced fit theory

Question QFB4 : The pH of a solution with hydrogen ion concentration of 0.0001 M is ______________.
Answer: 4

Question QFB5 : The basic distinguishing feature between peptide and protein is in respect to their ___________.
Answer: Molecular weight

Question QFB6 : A _______ centre is a carbon atom to which four different functional groups are covalently linked.
Answer: Chiral

Question QFB7 : When an amino acid rotates the plane polarised light to the right is said to be __________
Answer: Dextrorotatory

Question QFB8 :  Complete the given equation.
Answer: ES

Question QFB9 : An enzyme with code [EC 1.3.2.2 ] belongs to the class of enzymes called _______
Answer: Oxidoreductases

Question QFB10 : A complete catalytically active enzyme together with its bound co-enzyme and/or metal ion is called _______
Answer: holoenzyme

Question QFB11 : ________ are biopolymers of amino acids in which amino acids are joined by peptide bonds.
Answer: Peptides

Question QFB12 : The presence of a red colour with Millon’s Reagent indicates the presence of the amino acid _______
Answer: tryptophan

Question QFB13 : The enzyme with code. [EC 3.2.1.18] belongs to the class _________
Answer: hydrolases

Question QFB14 : The part of an amino acid that gives it its unique property is the ___________
Answer: side chain

Question QFB15 : The pH of a solution with 0.82 M hydrogen ion concentration is ______________.
Answer: 13.9

Question QFB16 : Calculate the pH of a solution with hydrogen ion concentration of 0.00456 M to the nearest whole number __________
Answer: 2

Question QFB17 :  Give the name of the amino acid with the given structure_________
Answer: Alanine

Question QFB18 : Calculate the pH of a buffer solution which is 0.05 M in sodium acetate and 0.1 M in acetic acid. The  for acetic acid is 4.73 _______
Answer: 4.43

Question QFB19 : The α- carbon in the amino acid lysine can also be referred to as in Arabic numeral as carbon atom ______
Answer: 2

Question QFB20 : How many peptide residues are present in Glutathione?
Answer: Three

Question QFB21 : A solution that resists slight changes in pH when little amount of acid or base is added to it is known as __________
Answer: Buffer solution

Question QFB22 : In a linear peptide polymer, the end of the linear polymer with free α- amino group is known as _____-
Answer: N terminal

Question QFB23 : How many amino acid residues are present in the peptide hormone oxytocin?______
Answer: 8

Question QFB24 : The first protein to be sequenced was_______
Answer: Insulin

Question QFB25 : Enzyme activity in the enzyme takes place an area known as _________
Answer: Active site

Question QFB26 : A widely used sequencing procedure that identifies amino acids singly, beginning with the N-terminal residues inwards is known as___________
Answer: Edman Degradation

Question QFB27 : Name the amino acid that gives a red coloured compound in Sakaguchi Reaction ________
Answer: Arginine

Question QFB28 :  Name the amino acid represented by the given structure_________
Answer: Cysteine

Question QFB29 :  Name the amino acid represented by the given structure________
Answer: Phenylalanine

Question QFB30 : In the formation of peptides, amino acids are linked together in a covalent bond known as ______
Answer: Amide linkage

Question QFB31 : In Gel filtration protein molecules are separated based on their shapes and _____
Answer: sizes

Question QFB32 : The side chain in alanine is replaced with __________.
Answer: Methyl group

Question QFB33 : __________ are the building blocks of proteins.
Answer: Amino acids

Question QFB34 : The pigment responsible for coloration in the skin
Answer: Melanin

Question QFB35 : How many functional groups are typical of an amino acid has __________.
Answer: Four

Question QMC1 : One of these amino acid has an isopropyl R group _______
Answer:

Question QMC2 : When phenylalanine is available in the body, which of these amino acids can readily be formed?
Answer:

Question QMC3 : Lack of one of these amino acids in the diet will affect the synthesis of a new protein
Answer:

Question QMC4 : Which of these amino acids is present in a test sample that gives a red colouration with Millions reagent?
Answer:

Question QMC5 : Which of these amino acids has an aliphatic side chain terminating with a basic group
Answer:

Question QMC6 : Which of the following is not true of the buffer action?
Answer:

Question QMC7 : Calculate the pK_a of lactic acid given that at pH 4.8, the concentration of lactic acid and its conjugate base is 0.001 and 0.087 M respectively.
Answer:

Question QMC8 : One of these statements is NOT true of amino acids
Answer:

Question QMC9 : Which of these amino acid will absorb light most strongly in the ultraviolet region(λ=100 to 400 nm)
Answer:

Question QMC10 : One of these amino acids will give a red coloration in Sakaguchi reaction
Answer:

Question QMC11 : For an amino acid to be an alpha amino acid, which of these must be true?
Answer:

Question QMC12 : Which of the following may be formed when free α-amino groups of amino group react with aldehydes?
Answer:

Question QMC13 : Amino acids are considered amphoteric for one of the following reasons
Answer:

Question QMC14 : Which of these amino acids contain sulphur?
Answer:

Question QMC15 : One of these amino acids has an OH side chain
Answer:

Question QMC16 : Which of these is not a criterion for the classification of common amino acids?
Answer:

Question QMC17 : Which of these amino acid will not rotate the plane of a plane-polarised light
Answer:

Question QMC18 : Which of these can be achieved with Xanthoproteic Reactions of amino acids
Answer:

Question QMC19 : Which of these amino acids does NOT give a purple colour with Ninhydrin
Answer:

Question QMC20 : The bluish- purple compound appearing as ring at the interface in the reaction of tryptophan with formaldehyde in the presence of Sulphuric acid is due to the presence of________
Answer:

Question QMC21 : How many stereoisomers of the amino acid, Alanine, are possible given that number of stereoisomers is 2ⁿ? Where n is the number of chiral carbons present.
Answer:

Question QMC22 : Which of these is not a part of the Henderson-Hasselbalch equation ?
Answer:

Question QMC23 : Which of these proteins is a structural protein found in hair of animals?
Answer:

Question QMC24 : Which of these proteins is involved with vision?
Answer:

Question QMC25 : One of these statements is NOT of proteins
Answer:

Question QMC26 : All but one of these are types of gel materials used in gel filtration :
Answer:

Question QMC27 : Which of these methods can be used to separate protein based on their Molecular size?
Answer:

Question QMC28 : Which of these phenomena is employed in dialysis to separate macromolecules from solvents with the aid of semi permeable membranes like cellophane
Answer:

Question QMC29 : What protein is found in Plastocyanin?
Answer:

Question QMC30 : Which of these proteins is involved in motion?
Answer:

Question QMC31 : Enzymes have the following characteristic EXCEPT
Answer:

Question QMC32 : Which of these functional groups gives each amino acid its identity
Answer:

Question QMC33 : Which of these amino acids is an intermediate in urea formation?
Answer:

Question QMC34 : Which of these amino acids is a hormone?
Answer:

Question QMC35 : One of these separation techniques employs the differences in pH in separation proteins
Answer: