Q.1
Two forms of D-glucopyranose, are called ....
  • a) enantiomers
  • b) anomers
  • c) epimers
  • d) diastereomers
Q.2
Which of the following is correct statement? [ AIPMT 2001]
  • a) Starch is a polymer of α-glucose
  • b) Amylose is a component of cellulose
  • c) Proteins are composed of only one type of amino acid
  • d) In cyclic structure of fructose, there are four carbons and one oxygen atom
Q.3
Which of the following is correct about H-bonding in nucleotide? [ AIPMT 2001]
  • a) A-T, G-C
  • b) A-G, T_C
  • c) G-T, A-C
  • d) A-A, T_T
Q.4
Which one of the following gives positive Fehling's solution test? [ AIPMT 2001]
  • a) Sucrose
  • b) Glucose
  • c) Fats
  • d) Protein
Q.5
The hormone whiich controls the processeslike burning of fats, proteins and carbohydrates to liberate energy in the body is [ AIPMT 2000]
  • a) Cortisone
  • b) throxine
  • c) adrenaline
  • d) insulin
Q.6
α-D-(+)-glucose and β-D-(+)-glucose are [ AIPMT 2000]
  • a) anomers
  • b) epimers
  • c) enantiomers
  • d) geometrical isomers
Q.7
Which one of the following has magnesium? [ AIPMT 2000]
  • a) Vitamin-B12
  • b) Chlorophyll
  • c) Haemocyanin
  • d) Carbonic anhydrase
Q.8
In DNA, the complementary bases are [ AIPMT 2008]
  • a) adenine anad thymine, guanine and cytosine
  • b) uracil and adenine, cytosine and guanine
  • c) adenine and guanine, thymine and cytosine
  • d) adenine and thymine, guanine and uracil
Q.9
the number of molecules of ATP produced in the lipid metabolism of a molecule of palitic acid is ...[ AIPMT 1998]
  • a) 130
  • b) 36
  • c) 56
  • d) 86
Q.10
Glucose molecule reacts with 'X' number of molecules of phenyl hydrazine to yield osazone. the value of 'X' is ...[ AIMPT 1998]
  • a) four
  • b) one
  • c) two
  • d) three
Q.11
Haemoglobin is [ AIPMT 1997]
  • a) an enzyme
  • b) a globular protein
  • c) a vitamin
  • d) a carbohydrate
Q.12
Sucrose in water is dextrorotatory [α]D = +66.4° when boiled with dil. HCL, the solution becomes leavorotatory, [α]D = -39.9°. in this process the sucrose breaks into ...[ AIPMT 1996]
  • a) L-glucose + D-fructose
  • b) L-glucose + L-fructose
  • c) D-glucose + D-fructose
  • d) D-glucose + L-fructose
Q.13
The α-D-glucose and β-D-glucose fiffer from each other due to difference in carbon atom with respect to its ...[ AIPMT 1995]
  • a) conformation
  • b) configuation
  • c) number of OH-groups
  • d) size of hemiacetal ring
Q.14
The couplings between base units of DNA is through ...[ AIPMT 1992]
  • a) hydrogen bonding
  • b) electrostatic bonding
  • c) covalent bonding
  • d) van der Waal's forces
Q.15
On hydrolysis of starch, we finally get [ AIPMT 1991]
  • a) glucose
  • b) fructose
  • c) Both (a) and (b)
  • d) sucrose
Q.16
Asserion: Peptide bond is covalent bond Reason: Disulphide bond is formed by two cysteine amino acids
  • a) amount of adenine (A) is equal to that of cytosine (C) and the amount of thymine (T) is equal to that of guanine (G)
  • b) amounts of all bases are equal
  • c) amount of adenine (A) is equal to that of thymine (T) and the amount of guanine (G) is equal to that of cytosine (C)
  • d) amount of adenine (A) is equal to that of guanine (G) and the amount of thymine (T) is equal to that of cytosine (C)
0 h : 0 m : 1 s