Practice Test

Q1) Which of the following carbohydrates is not monosaccharide? Show Answer

Q2) Which of the following is a polysaccharide? Show Answer

Q3) Maltose is hydrolysed in the presence of maltase to: Show Answer

Q4) The disaccharide present in milk is: Show Answer

Q5) Which of the following is a ketohexose? Show Answer

Q6) Which of the following has maximum sweetness? Show Answer

Q7) Which of the following does not give silver mirror with Tollen's reagent? Show Answer

Q8) Glucose is oxidised to carbon dioxide and water with oxygen in the presence of enzyme: Show Answer

Q9) The change in optical rotation of a freshly prepared solution of glucose with time is called: Show Answer

Q10) Alanine is: Show Answer

Q11) Glycine reacts with nitrous acid to give: Show Answer

Q12) Which of the following carbohydrate is found most abundantly in nature? Show Answer

Q13) Hydrolysis of sugar is called: Show Answer

Q14) Structurally, cellulose is a linear polymer of: Show Answer

Q15) Starch is changed into disaccharide in the presence of: Show Answer

Q16) The peptide linkage is: Show Answer

Q17) Eye disease is caused by the deficiency of vitamin: Show Answer

Q18) Vitamin C is chemically known as: Show Answer

Q19) Iodine deficiency in diet causes: Show Answer

Q20) Which of the following contains cobalt? Show Answer

Q21) Which of the following base is found only in RNA and not in DNA? Show Answer

Q22) The three dimensional structure of DNA was elucidated by: Show Answer

Q23) Which of the following is not present in DNA? Show Answer

Q24) An emample of disaccharide is: Show Answer

Q25) Proteins on complete hydrolysis give: Show Answer

Q26) Vitamin A is known as: Show Answer

Q27) Insulin is secreted from: Show Answer

Q28) The number of amino acids in insulin is: Show Answer

Q29) In nucleic acids, the individual nucleotides are linked through: Show Answer

Q30) RNA is: Show Answer

Q31) Invert sugar is: Show Answer

Q32) Enzymes belong to a category of: Show Answer

Q33) The enzyme which converts protein into amino acids during digestion is: Show Answer

Q34) Which of the following is not present in RNA? Show Answer

Q35) Lipases are enzymes that hydrolyse: Show Answer

Q36) The chemical change in DNA molecule that could lead to synthesis of proteins with an altered amino acid sequence is called: Show Answer

Q37) Which of the following is a fat soluble vitamin? Show Answer

Q38) The component of blood responsible for blood clotting is: Show Answer

Q39) Deficiency of Vitamin D leads to disease: Show Answer

Q40) White blood cells act: Show Answer

Q41) The chemical passengers produced in ductless glands are called: Show Answer

Q42) Which of the following vitamin is synthesised by sun rays? Show Answer

Q43) Which of the following enzyme breaks up starch readily? Show Answer

Q44) Carbohydrates are stored in the body as: Show Answer

Q45) The pairs of bases in DNA are held together by: Show Answer

Q46) Which of the following carbohydrate is an essential constituent of plant cell? Show Answer

Q47) Amino acids are least soluble: Show Answer

Q48) Which of the following does not refer to the principle forms of carbohydate present in our food? Show Answer

Q49) Which of the following is regarded as the energy currency of the cell? Show Answer

Q50) Cobalamine is: Show Answer

Q51) The excess glucose is stored in the liver as: Show Answer

Q52) The pH of human blood lies between: Show Answer

Q53) The non-protein component in enzymes which is necessary for its biological activity is: Show Answer

Q54) In glycine the basic group is: Show Answer

Q55) The sequence in which amino acids are linked to one another in a protein is called its: Show Answer

Q56) Milk sugar is commonly known as: Show Answer

Q57) The bond that determines the secondary structure of a protein is: Show Answer

Q58) Which of the following is not an essential amino acid? Show Answer

Q59) An example of fibrous protein is: Show Answer

Q60) The coenzymes are derived from: Show Answer

Q61) The peptide bond is a key feature inL Show Answer

Q62) Complete hydrolysis of starch gives: Show Answer

Q63) Cellulose is a: Show Answer

Q64) Vitamin C is called: Show Answer

Q65) Which of the following is vitamin? Show Answer

Q66) Vitamin E is known as: Show Answer

Q67) Starch is composed of: Show Answer

Q68) Which vitamin gets destroyed on heating? Show Answer

Q69) Oxygen is carried away from lungs by blood mainly because of the presence of: Show Answer

Q70) The number of ATP molecules consumed during formation of one mole of glucose is: Show Answer

Q71) An example of a disaccharide made up of two units of the same monosaccharides is: Show Answer

Q72) Deficiency of Vitamin E causes: Show Answer

Q73) Biuret test is used for the detection of: Show Answer

Q74) Which of the following is present in cod liver oil? Show Answer

Q75) An example of a protein which acts as structural material is: Show Answer

Q76) The metal ion present in haemoglobin and is responsible for oxygen uptake is: Show Answer

Q77) The only vitamin with a metal atom in it is: Show Answer

Q78) The metal present in blood is: Show Answer

Q79) Protein is a polymer of: Show Answer

Q80) Which of the following is an example of zwitter ion? Show Answer

Q81) Reducing sugar can reduce: Show Answer

Q82) Which of the following is true about vitamins? Show Answer

Q83) Guanine is held by three hydrogen bonds with the base: Show Answer

Q84) Invert sugar is a mixture of: Show Answer

Q85) Structure of a DNA molecule is: Show Answer

Q86) Enzymes in the living systems: Show Answer

Q87) The functional group which is found in amino acid is: Show Answer

Q88) The reason for double helical structure of DNA is operation of Show Answer

Q89) Complete hydrolysis of cellulose gives Show Answer

Q90) Insulin production and its action in human body are responsible for the level of diabetes. This compound belongs to which of the following categories? Show Answer

Q91) Which base is present in RNA but not in DNA? Show Answer

Q92) In both DNA and RNA, heterocyclic base and phosphate esters linkages are at Show Answer

Q93) The two forms of D-glucopyranose obtained from the solution of D-glucose are called Show Answer

Q94) The pyrimidine bases present in DNA are Show Answer

Q95) The secondary structure of a protein refers to: Show Answer

Q96) Which of the following has magnesium? Show Answer

Q97) The hormone which controls the processes of burning of fats, proteins and carbohydrates to liberate energy in the body is Show Answer

Q98) Which amino acid is achiral? Show Answer

Q99) Which of the following is not a sex hormone? Show Answer

Q100) In polysaccharides, the linkage connecting monosaccharide is called: Show Answer

Q101) Scurvy is caused due to deficiency of vitamin: Show Answer

Q102) An example of water soluble vitamin is: Show Answer

Q103) Which is correct? Show Answer

Q104) Which statement is incorrect about peptide bond? Show Answer

Q105) A nucleotide consists of Show Answer

Q106) Cellulose is a polymer of: Show Answer

Q107) Enzymes are made up of Show Answer

Q108) A triglyceride can have how many different acyl groups? Show Answer

Q109) Oils converted into fats by: Show Answer

Q110) Enzymes with two sites are called Show Answer

Q111) Phospholipids are esters of glycerol with Show Answer

Q112) Chargoff's rule states that in an organism Show Answer

Q113) Subunits present in haemoglobin are: Show Answer

Q114) Among the following achiral amino acid is Show Answer

Q115) Which of the following represents a peptide chain Show Answer

Q116) A sequence of how many nucleotides in messenger RNA makes a codon for an amino acid? Show Answer

Q117) The helical structure of proteins is stabilized by Show Answer

Q118) The nucleic acid base having two possible building sites is Show Answer

Q119) An alteration in the base sequence of nucleic acid molecule is Show Answer

Q120) Carbohydrates are stored in human body as the polysaccharide Show Answer

Q121) Mark the wrong statement about denaturation of proteins Show Answer

Q122) Which functional group participates in disulphide bond formation in proteins? Show Answer

Q123) The cell membranes are mainly composed of Show Answer

Q124) Which of the following amino acid is optically inactive? Show Answer

Q125) Glucose has difference from fructose in that it Show Answer

Q126) Which one of the following biomolecules is insoluble in water? Show Answer

Q127) Which of the following is / are true?
(a) Sucrose is non reducing sugar
(b) Glucose is oxidised by bromine water
(c) Glucose rotates plane polarized light in clockwise direction
(d) Fructose is oxidised by bromine water.
Select the correct answer using the codes given below: Show Answer

Q128) The group linkage present in fats is Show Answer

Q129) Sucrose on reacting with conc. Sulphric acid gives Show Answer

Q130) Which one of the following is a peptide harmone? Show Answer

Q131) The human body does not produce: Show Answer

Q132) RNA and DNA are chiral molecules, their chirality is due to: Show Answer

Q133) Which one of the following vitamins is water soluble? Show Answer

Q134) In DNA, the complementary bases are: Show Answer

Q135) Which one of the following is an amine hormone? Show Answer

Q136) Which of the following hormone contains iodine? Show Answer

Q137) The segment of DNA which acts as the instrumental manual for the synthesis of the protein is: Show Answer

Q138) The transfer RNA anticodon for the messenger RNA codon G - C - A is Show Answer

Q139) Which one of the following metal ions is essential inside the cell for the metabolism of glucose / synthesis of proteins? Show Answer

Q140) In aqueous solution, an amino acid exists as Show Answer

Q141) The secondary structure of proteins is derrived from Show Answer

Q142) The source of energy in a cellular reaction is Show Answer

Q143) Nitrogenous base that is found in RNA but absent in DNA is Show Answer

Q144) Which one of the following metal is required as cofactor by all enzymes utilizing ATP in phosphate transfer? Show Answer

Q145) Secondary structure of protein is mainly governed by Show Answer

Q146) Which one of the following does not exhibit the phenomenon of mutarotation? Show Answer

Q147) Which one of the following statements is not true regarding (+) Lactose? Show Answer