1) All of the following are insoluble in water except
a) Cellulose b) Glucose c) Fats d) Proteins
2) Molecules which is unstable and is the immediate source of energy.
a) Amino acids b) Glucose
c) Adensoine triphosphate d) Fatty acid
3) When 1 gram water is heated from 15C to 16C heat absorbed is
a) 10 Calories b) 1 calorie c) 2 calories d) 5 calories
4) Monosaccharide have
a) Hydroxyle b) Aldehyde group
c) Keto group d) All of these
5) The type of monosaccharide rare in nature
a) Triose b) Tetroses c) Pentoses d) Hexoses
6) Cane sugar is a
a) Polysaccharide b) Pligosaccharide
c) Monosaccharide d) None of these
7) Polysaccaride which give red colour with iodine
a) Cellulose b) Glycogen c) Starch d) Chitin
8) Character not found in waxes
a) Even no. of carbon atoms b) Have long chains alkanes
c) Protect plants from water loss d) Water barrier substance
9) Sanger determined the structure of
a) Hemoglobin b) Fibrin c) Insulin d) Keratin
10) Quaternary structure is found in
a) Hemoglobin b) Insulin c) Keratin d) Fibrin
11) Who isolated nuclic acid in 1870?
a) F. Sanger b) W. Ingram c) F. Miesher d) F. Franklin
12) Substances found in nucleoside
a) Pentose sugar b) Organic base
c) Phosphate d) A and B
13) What is percentage of protein in mammalian cell, per total cell weight?
a) 12 b) 25 c) 18 d) 25
14) What is the number of Amino Acid in an insulin molecule?
a) 21 b) 30 c) 41 d) 51
15) The shape of hemoglobin molecule is like a
a) Fiber b) Cigar c) Globe d) Saucer
16) The physical property of monosaccaride is that they are
a) Less sweet and less soluble in water
b) Sweet and less soluble in water
c) Sweet and easily soluble in water
d) Less sweet and insoluble in water
17) What does sucrose yield on hydrolysis
a) 2 Monosaccharides b) 3 Monosaccharides
c) 4 Monosaccharides d) 5 Monosaccharides
18) What are the reactants for the formation of lactose?
a) Glucose + Glucose b) Glucose + Fructose
c) Glucose + Galactose d) Fructose + Maltose
19) There are three hydrogen bonds in between different bases found in genetic
material
a) Cytosine and Guanine b) Adenine and Thymine
c) Adenine and Uracil d) Thymine and Uracil
20) Glycogen is chemically
a) Monosaccharide b) Disaccharide
c) Oligosaccharide d) Polysaccharide
21) A suitable example of terpenoids is
a) Sugar b) Waxes c) Starches d) Steroids
22) In plant cell the excess of glucose is converted into
a) Cellulose b) Galactose c) Sucrose d) Starch
23) Cotton fiber is purely
a) Galactose b) Sucrose c) Cellulose d) Glucose
24) In animals fatty acids are in
a) Branched chain b) Straight chain
c) Ring d) None of these
25) Oleic-acids is a common example of
a) Unsaturated fatty acid b) Saturated fatty acid
c) Super saturated fatty acid d) None of these
26) Acylglycerols are chemically composed of
a) Glycerol and nucleic acids b) Glycerol and inorganic acids
c) Glycerol and fatty acids d) Glycerol and amino acids
27) DNA contains all the following nitrogenous base units except
a) Adenine b) Gaunine c) Cytocine d) Uracil
28) PGAL is a phosphorylated form of a monosacaride sugar, it belongs to which group.
a) Trioses b) Tetroses c) Pentosses d) Hexose
29) Nucleic acids are in different forms in the nucleus of a cell. Which of the following forms of nucleic acids controls the synthesis of all these.
a) DNA b) mRNA c) tRNA d) rNAa
30) Carbohydrates in the cell combine with protein and a resultant compound is called
a) Glycolipids b) Glycoprotein c) Glycogenesis d) Glycolic acid
31) The general formula of monosaccharides is
a) (CH4O)n b) (CH2O)n c) (CH3O) d) (CHO)n
32) Carbohydrates that are comparatively less sweet in taste and less soluble in water are called
a) Monosaccharides b) Polysaccharides
c) Oligosaccharides d) None
33) Most familiar disaccharide is
a) Maltose b) Sucrose c) Lactose d) None
34) The main source of starch is
a) Grains b) Seeds
c) Fruits and tubers d) All of the above
35) In which of the following compounds, lipid is soluble
a) Ether b) Alcohol c) Chloroform d) All of above
36) The most widely spread acylglycerole is
a) Diacyglycerol b) Triacyglycerol
c) Only acyglycerol d) Tetra acylgycerol
37) The basic unit of nucleic acid is called
a) Nucleoside b) Nucleotide
c) Nitrogenous base d) Phosphoric acid
38) Nucleotides are united with one another through
a) Disulphide bridge b) Phosphodiester linkage
c) Covalent bond d) Ionic bond
39) The two polynucleotide strands are wound round each other. How many base pairs are there in each turn.
a) 5 base pair b) 15 base pairs
c) 10 base pairs d) 20 base pairs
40) Which of the following RNA carries genetic information from nucleus to cytoplasm.
a) tRNA b) tRNA c) mRNA d) None