question_answer 1) Lactose is composed of: [AIPMT 1998]
A)
glucose + fructose
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B)
glucose + glucose
done
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C)
glucose + galactose
done
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D)
fructose + galactose
done
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question_answer 2) Cellulose, the most important constituent of plant cell wall is made up of: [AIPMT 1998]
A)
branched chain of glucose molecules linked by \[\alpha \], 1,6 glycosidic bond at the site of branching
done
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B)
unbranched chain of glucose molecules linked by \[\alpha \], 1,4 glycosidic bond
done
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C)
branched chain of glucose molecules linked by \[\beta \], 1, 4 glycosidic bond in straight chain and \[\alpha \], 1, 6 glycosidic bond at the site of branching
done
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D)
unbranched chain of glucose molecules linked by \[\beta \], 1, 4 glycosidic bond
done
clear
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question_answer 3) Conjugated proteins containing carbohydrates as prosthetic group are called: [AIPMT 2000]
A)
lipoproteins
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B)
nucleoproteins
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C)
glycoproteins
done
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D)
chromoproteins
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question_answer 4) Which one of the following amino acids is an essential part of human diet? [AIPMT 2000]
A)
Glycine
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B)
Phenylalanine
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C)
Serine
done
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D)
Aspartic acid
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question_answer 5) Most abundant organic compound on earth is: [AIPMT 2001]
A)
protein
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B)
cellulose
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C)
lipids
done
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D)
steroids
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question_answer 6) Spoilage of oil can be detected by which fatty acid? [AIPMT 2001]
A)
Oleic acid
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B)
Linolenic acid
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C)
Linoleic acid
done
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D)
Erusic acid
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question_answer 7) In plants, inulin and pectin are: [AIPMT 2001]
A)
reserve materials
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B)
wastes
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C)
excretory material
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D)
insect-attracting material
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question_answer 8) Which is a reducing sugar? [AIPMT 2002]
A)
Galactose
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B)
Gluconic acid
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C)
\[\beta \]-methyl galactoside
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D)
Sucrose
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question_answer 9) lipids are insoluble in water because lipids molecules are: [AIPMT 2002]
A)
hydrophilic
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B)
hydrophobic
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C)
neutral
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D)
Zwitter ions
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question_answer 10) Collagen is: [AIPMT 2002]
A)
fibrous protein
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B)
globular protein
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C)
lipid
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D)
carbohydrate
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question_answer 11) In which one of the following nitrogen is not a constituent? [AIPMT 2003]
A)
Invertase
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B)
Pepsin
done
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C)
Idioblast
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D)
Bacteriochlorophyll
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question_answer 12) Which one of the following pairs is not correctly matched? [AIPMT (S) 2004]
A)
Vitamin \[{{B}_{12}}\] Pernicious anaemia
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B)
Vitamin \[{{B}_{6}}\] Loss of appetite
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C)
Vitamin \[{{B}_{1}}\] Beri-beri
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D)
Vitamin \[{{B}_{2}}\] Pellagra
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question_answer 13) Which one of the following is the correct matching of a vitamin, its nature and its deficiency disease? [AIPMT (S) 2004]
A)
Vitamin A Fat soluble Nightblindness
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B)
Vitamin K Fat soluble Beri-beri
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C)
Vitamin A Fat soluble Beri-beri
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D)
Vitamin K Water solublePellagra
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question_answer 14) The richest sources of vitamin-Big are: [AIPMT (S) 2004]
A)
goat's liver and Spirulina
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B)
chocolate and green gram
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C)
rice and hen's egg
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D)
carrot and chicken's breast
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question_answer 15) Nucleotide are building blocks of nucleic acids, nucleotide is a composite molecule formed by: [AIPMT (S) 2005]
A)
(base-sugar-phosphate)
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B)
base-sugar-OH
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C)
base-sugar-phosphate
done
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D)
sugar-phosphate
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question_answer 16) Which of the following is the simplest amino acid? [AIPMT (S) 2005]
A)
Tyrosine
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B)
Asparagine
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C)
Glycine
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D)
Alanine
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question_answer 17) Carbohydrates, the most abundant biomoiecules on earth, are produced by: [AIPMT (S) 2005]
A)
all bacteria, fungi and algae
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B)
fungi, algae and green plant cells
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C)
some bacteria, algae and green plant cells
done
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D)
viruses, fungi and bacteria
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question_answer 18) Which one of the following aminoacids was not found to be synthesized in Miller's experiment? [AIPMT (S) 2006]
A)
Glycine
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B)
Asparticacid
done
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C)
Glutamic acid
done
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D)
Alanine
done
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question_answer 19) Amino acid sequence, in protein synthesis is decided by the sequence of: [AIPMT (S) 2006]
A)
t-RNA
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B)
m-RNA
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C)
c-DNA
done
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D)
r-RNA
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question_answer 20)
Carbohydrates are commonly found as starch in plant storage organs. Which of the following five properties of starch (A-E) make it useful as a storage material? [AIPMT (S) 2008] [A] Easily translocated [B] Chemically non-reactive [C] Easily digested by animals [D] Osmotic ally inactive [E] Synthesized during photosynthesis The useful properties are
A)
[B] and [C]
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B)
[B] and [D]
done
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C)
[A], [C] and [E]
done
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D)
[A] and [E]
done
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question_answer 21) Which one of the following pair of nitrogenous bases of nucleic acids, is wrongly matched with the category mentioned against it? [AIPMT (S) 2008]
A)
Thymine, Uracil - Pyrimidines
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B)
Uracil, Cytosine - Pyrimidines
done
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C)
Guanine, Adenine - Purines
done
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D)
Adenine, Thymine - Purines
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question_answer 22) The chemiosmotic coupling hypothesis of oxidative phosphorylation proposes that Adenosine Triphosphate (ATP) is formed because [AIPMT (S) 2008]
A)
high energy bonds are formed in mitochondrial proteins
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B)
ADP is pumped out of the matrix into the Inter membrane space
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C)
a proton gradient forms across the inner membrane
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D)
there is a change in the permeability of the inner mitochondrial membrane toward Adenosine Diphosphate (ADP)
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question_answer 23) Which one of the following is the correct matching of three items and their grouping category? [AIPMT (S) 2009]
A)
Malleus, incus, cochlea - Ear ossicles
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B)
Ilium, ischium, pubis - Coxal bones of pelvic girdle
done
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C)
Actin, myosin, rhodopsin - Muscle proteins
done
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D)
Cytosine, uracil, thiamine - Pyrimidines
done
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question_answer 24) The 3 '-5' phosphodiester linkages inside a polynucleotide chain serve to join [AIPMT (M) 2010]
A)
one DNA strand with the other DNA strand
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B)
one nucleoside with another nucleoside
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C)
one nucleotide with another nucleotide
done
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D)
one nitrogenous base with pentose sugar
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question_answer 25)
Which one of the following structural formulae of two organic compounds is correctly identified along with its related function? [AIPMT (S) 2011]
A)
A Triglycerid source of energy
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B)
B Uracil a component of DNA
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C)
A Lecithin a component of cell membrane
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D)
B Adenine a nucleoride that makes up nucleic acids
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question_answer 26)
Given below is the diagrammatic representation of one of the categories of small molecular weight organic compounds in the living tissues. Identify the category shown and the one blank component X in it [AIPMT (S) 2012]
A)
Cholesterol - Guanin
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B)
Amino acid - \[\text{N}{{\text{H}}_{\text{2}}}\]
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C)
Nucleoride - Adenine
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D)
Nucleoside - Uracil
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question_answer 27) Which one is the most abundant protein in the animal world? [AIPMT (S) 2012]
A)
Trypsin
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B)
Haemoglobin
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C)
Collagen
done
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D)
Insulin
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question_answer 28)
Which one out of A-D given below correctly represents the structural formula of the basic amino acid? [AIPMT (S) 2012]
A)
C
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B)
D
done
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C)
A
done
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D)
B
done
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question_answer 29) A phosphoglyceride is always made up of [NEET 2013]
A)
only a saturated fatty acid esterifies to a glycerol molecule to which a phosphate group is also attached
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B)
only an unsaturated fatty acid esterifies to a glycerol molecule to which a phosphate group is also attached
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C)
a saturated or unsaturated fatty acid esterifies to a glycerol molecule to which a phosphate group is also attached
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D)
a saturated or unsaturated fatty acid esterifies to a phosphate group, which is also attached to a glycerol molecule
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question_answer 30) Macromolecule chitin is [NEET 2013]
A)
nitrogen containing polysaccharide
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B)
phosphorus containing polysaccharide
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C)
sulphur containing polysaccharide
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D)
simple polysaccharide
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question_answer 31) Select the correct match of the digested products in humans given in column I with their absorption site and mechanism in column II. [NEET 2013]
A)
Glycine and glucose - Small intestine and active absorption
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B)
Fructose and \[N{{a}^{+}}\]- Small intestine passive absorption
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C)
Glycerol and fatty acids - Duodenum and move as chi omicrons
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D)
Cholesterol and maltose - Large intestine and active absorption
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question_answer 32) Which one of the following is a non-reducing carbohydrate? [NEET 2014]
A)
Maltose
done
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B)
Sucrose
done
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C)
Lactose
done
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D)
Ribose 5-phosphate
done
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question_answer 33) Which one of the following is not applicable to RNA? [NEET (Re) 2015]
A)
Complementary base pairing
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B)
5' phosphoryl and 3' hydroxyl ends
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C)
Heterocyclic nitrogenous bases
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D)
Chargaff's rule
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question_answer 34) Which of the following biomolecules does have a phosphodiester bond? [NEET (Re) 2015]
A)
Fatty acids in a diglyceride
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B)
Monosaccharides in a polysaccharide
done
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C)
Amino acids in a polypeptide
done
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D)
Nucleic acids in a nucleotide
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question_answer 35) Which one of the following statements is wrong? [NEET - 2016 Phase-I]
A)
Sucrose is a disaccharide
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B)
Cellulose is a polysaccharide
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C)
Uracil is a pyrimidine
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D)
Glycine is a sulphur containing amino acid
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question_answer 36) A typical fat molecules is made up of: [NEET - 2016 Phase-I]
A)
Three glycerol molecules and one fatty acid molecules
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B)
One glycerol and three fatty acid molecules
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C)
One glycerol and one fatty acid molecule
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D)
Three glycerol and three fatty acid molecules
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question_answer 37) Which of the following rRNAs acts as structural RNA as well as ribozyme in bacteria? [NEET - 2016 Phase-II]
A)
5 S rRNA
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B)
18 S rRNA
done
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C)
23 S Rrna
done
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D)
5.8 S rRNA
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question_answer 38) Which of the following is the least likely to be involved in stabilizing the three-dimensional folding of most proteins?
A)
Hydrogen bonds
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B)
Electrostatic interaction
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C)
Hydrophobic interaction
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D)
Ester bonds
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question_answer 39) If there are 999 bases in an RNA that codes for a protein with 333 amino acids, and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered? [NEET-2017]
A)
333
done
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B)
1
done
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C)
11
done
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D)
33
done
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question_answer 40) Which of the following are not polymeric? [NEET-2017]
A)
Lipids
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B)
Nucleic acids
done
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C)
Proteins
done
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D)
Polysaccharides
done
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question_answer 41) The two functional groups characteristic of sugars are [NEET - 2018]
A)
Carbonyl and phosphate
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B)
Carbonyl and methyl
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C)
Hydroxyl and methyl
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D)
Carbonyl and hydroxyl
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