Biology MCQS Chapter 2 Biomolecules
1.Cell contains a living material called]A.cytoplasm
B.Protoplasm
C.Cytosol
D. none of these
correct answer is B
2.Carbon is use during
A.as use as reducing agent
B.as use in aerobic respiration
C.use as fix during photosynthesis
D.none of above
correct answer is C
3.Biomolecules can be divided into
A.4 groups
B.3 groups
C.2 groups
D.5 groups
correct answer is D
4.In mammalian cell constitute of protein
A.18%
B.70%
C.O.5%
D.3%
correct answer is A
5.In living cell the most abundant component is
A.water
B.nitrogen
C.oxygen
D.carbon
correct answer is A
6.Water has variety of properties except
A.Behave as best solvent
B.high heat of vaporization
C.adhesive force in molecules
D.slow to absorb and release heat
correct answer is C
7.Which one is tetravalent in nature
A.nitrogen
B.carbon
C.silicon
D.chlorine
correct answer is B
8.Amino acid is building blocks of
A.Lipids
B.glucose
C.protein
D.glycerol
correct answer is C
9.Glycogen is found in all of the following except
A.liver
B.bacteria
C.muscles tissues
D.algae
correct answer is D
10.which one is insoluble in water and soluble in organic compound
A.lipids
B.cellulos
C.starch
D.glycogen
correct answer is A
11.which of the following statement is correct about saturated fats
A.they contains one or more double bond between carbon
B.they are liquid at ordinary tempreture
C.they do not contain any double bond between carbon
D. none of these
correct answer is C
12.D.N.A is found mainly in the
A.in the cytoplasm
B.plasma membrane
C.chromatin of the cell
D.nucleolus
correct answer is C
13.The carbon atoms in the steroid is
A.8
B.17
C.12
D.16
correct answer is B
14.fructose most abundant found in
A.milk
B.honey
C.fruit sugar
D.sugar cane
correct answer is C
15.The most important reserve food in higher plants is
A.starch
B.glycogen
C.lipids
D.protein
correct answer is A
16.carbohydrates combine with a protein molecules to form
A.nucleoprotein
B.lipoprotein
C.glycolipid
D.glycoprotein
correct answer is D
17.Nitrogenous base not present in R.N.A is
A.guanine
B.thymine
C.uracil
D.adenine
correct answer is B
18.Type of polynucleotide acting as messenger
A.mRNA
B.ATP
C.NAD
D.ADP
correct answer is A
19.Which of the following groups of lipid except
A.waxes
B.terpenoids
C.Acylglycerol
D.glycogen
correct answer is D
20.A process during which polymers are broken down into their subunits is called
A.condensation process
B.hydrolysis
C.reduction
D.none of above
correct answer is B
