Q.1.
Genes are packaged into a bacterial chromosome by
-
0%
a) histones
-
0%
b) basic proteins
-
100%
c) acidic proteins
-
0%
d) actin
Q.2.
The figure given below shows three velocity-substrate concentration curves for an enzyme reaction. What do the curves a, b, and c depict respectively
-
0%
a) a- normal enzyme reaction b – competitive inhibition c – on-competitive inhibition
-
100%
b) a-enzyme with an allosteric modulator added b – normal enzyme activity c- competitive inhibition
-
0%
c) a-enzyme with an allosteric stimulator b- competitive inhibition added c- normal enzyme reaction
-
0%
d) a- normal enzyme reaction b- non-competitive inhibitor added c- allosteric inhibitor added
Q.3.
The common instant source of energy of cellular activities is
-
0%
a) Mitochondria
-
0%
b) DNA
-
0%
c) RNA
-
100%
d) ATP
Q.4.
What is enzyme?
-
0%
a) All proteins which are in all living cell
-
100%
b) Chemicals which act as biological catalysts
-
0%
c) All amino acid which are in polypeptide chain
-
0%
d) All above
Q.5.
This reaction is an example for:
-
0%
a) Allosteric inhibition
-
0%
b) Feedback inhibition.
-
0%
c) Competitive inhibition.
-
0%
d) None of the above.
Q.6.
The figure shows a hypothetical tetra peptide portion of a protein with parts labelled A – D. Which one of the following options is correct?
-
0%
a) D is the acidic amino acid – glutamic acid.
-
0%
b) C is an aromatic amino acid – tryptophan.
-
0%
c) A is the C – terminal amino acid and D is the N – terminal amino acid.
-
100%
d) A is the sulphur containing amino acid – methionine.
Q.7.
Only 20 types of amino acids can give rise to over
-
100%
a) 10,000 proteins
-
0%
b) 10,500 proteins
-
0%
c) 10,100 proteins
-
0%
d) 11,500 proteins
Q.8.
Observe the structural formula of organic compound given below and answer accordingly:
-
100%
a) It represents trihydroxy propane.
-
0%
b) It represents cholesterol – a component of cell membrane.
-
0%
c) It represents a phospholipid called gingely oil.
-
0%
d) It represents a phospholipid called lecithin – a component of cell membrane.
Q.9.
ch the following is the word regarding steroids is not correct?
-
0%
a)Cortisone
-
0%
b)Progesterone
-
100%
c)Glycolipid
-
0%
d)Ergosterol
Q.10.
Which of the following option is not correctly for this molecule?
-
0%
a)It is Keto hexoses sugar.
-
0%
b)Hydrolysis of a molecule of maltose
-
0%
c)It can pass through the cell membarane
-
0%
d)Found in the juice of fruits.
Q.11.
Match column - I and column-II and select the correct option:
| Column I | Column II |
| (P)Arginine | (i) polar and negatively changed 'R' group |
| (Q) Glycine | (ii) non polar 'R' group |
| (R) Methionine | (iii) polar and positively changed 'R' group |
| (S) Aspartic acid | (iv) polar and 'R' group |
-
0%
a) P= iii; Q= iv; R= ii; S= I
-
0%
b) P=ii; Q=I; R=iv; S=iii
-
0%
c) P=i; Q=iv; R=ii; S=iii
-
0%
d) P=iii; Q=ii; R=iv; S=i
Q.12.
Which of the following is an amino acid?
-
0%
a)
-
0%
b)
-
0%
c)
-
0%
d)
Q.13.
Match the items in column - I with appropriate items in column - II and pick up correct answer
| Column I | Column II |
| (P) RUBISCO | (i) contractile protein |
| (Q) Keratin | (ii) insoluble protein |
| (R) Hemoglobin | (iii) most abundant protein |
| (S) globular | (iv) conjugated protein |
-
0%
a) P- iii; Q- ii; R - iv; S-i
-
0%
b) P- iii ; Q-iv ; R - ii; S- I
-
0%
c) P- iv; Q- I; R - iii; S- ii
-
0%
d) P- i ; Q- ii; R - iv; S- iii
Q.14.
Which molecules are the consist of a following molecule structure?
-
0%
a) 3 glycerol + 1 fatty acid
-
0%
b) 1 glycerol + 3 fatty acid
-
0%
c) 3 glycerol + 3 fatty acid
-
0%
d) glycerol + fatty acid
Q.15.
A: Dipeptide is formed through the union of two similar or dissimilar aminoacid molecule R: Dipeptide bond is formed between the -COOH group of one amino acid and -NH2 group of another amino acid molecule
-
0%
a) Both A & R are true and R is the correct explanation of A
-
0%
b) Both A & R are true but R is not the correct explanation of A
-
0%
c) A true R false
-
0%
d) both A & R are false
Q.16.
Which one is the correct structure of phosphoric acid?
-
0%
a)
-
0%
b)
-
0%
c)
-
0%
d)
Q.17.
In the formation of triglyceride, glycerol get linked with any Fatty acids by ... ..
-
0%
a) -NH2
-
0%
b) -COOH
-
0%
c) -CHO
-
0%
d) >C=O
Q.18.
Match the terms in column-I with suitable terms in column-II.
| Column I | Column II |
| P) Glycosidic bond | i) Triglycerides |
| Q) Ester bond | ii) Dinucleotide |
| R) Peptide bond | iii) Disaccharide |
| S) Phosphodiester bond | iv) Dipeptide |
-
0%
a) P= i; Q= iii; R= ii; S= iv
-
0%
b) P= iii; Q= iv; R= i; S= ii
-
0%
c) P= iii; Q= i; R= iv; S= ii
-
0%
d) P= ii; Q= iv; R= iv; S= iii
Q.19.
The best example of extra cellular enzyme is?
-
0%
a) Nuclease
-
0%
b) Digestive enzyme
-
0%
c) Dehydrogenase
-
0%
d) Lipase
Q.20.
The pair of nitrogen base in DNA is conjugated with
-
0%
a) Disulphide bond
-
0%
b) Hydrogen bond
-
0%
c) Peptide bond
-
0%
d) Glycosidic bond
Q.21.
Which one is the most abundant protein in the animal world?
-
0%
a) Collagen
-
0%
b) keratin
-
0%
c) RUBISCO
-
0%
d) Hemoglobin
Q.22.
Amino acid is an amphoteric compound because:
-
0%
a) It contains an amino group and a carboxyl group
-
0%
b) It contains an amino group and a functional group
-
0%
c) It contains a functional group and a carboxyl group
-
0%
d) It contains one H and a-R group
Q.23.
Proteins means
-
0%
a) Micromolecule
-
0%
b) Macromolecule
-
0%
c) Soluble
-
0%
d) Colloidal
Q.24.
Which are the terminals of polypeptide chain?
-
0%
a) 'R' and 'N' terminal
-
0%
b) 'P' and 'R' terminal
-
0%
c) 'H' and 'N' terminal
-
0%
d) 'N' and C' terminal
Q.25.
The classification of the protein in two types depends on
-
0%
a) Structure and function
-
0%
b) Types of amino acid
-
0%
c) Numbers of amino acid
-
0%
d) none above
Q.26.
Which of the following will be characteristically different in different living organism?
-
0%
a) Protein
-
0%
b) Nucleic acid
-
0%
c) Enzyme
-
0%
d) Carbohydrate
Q.27.
A molecule of ATP is structurally most similar to a molecule of?
-
0%
a) RNA
-
0%
b) Protein
-
0%
c) Lipid
-
0%
d) Amino acid
Q.28.
The structure of DNA like a spiral ladder because
-
0%
a) Purine and Pyrimidine are on the opposite side
-
0%
b) Purine and Pyrimidine linked with hydrogen bond
-
0%
c) All nucleotides join through a phosphodiester bond
-
0%
d) Two polynucleotide chains arranged parallel to each other and are spirally Twisted
Q.29.
Which is the special function of t-RNA?
-
0%
a) Pick up code for m-RNA and bring it to r-RNA
-
0%
b) Do protein synthesis
-
0%
c) Carries the coded genetic information in to the cytoplasm
-
0%
d) An adapter for attaching amino acid to m-RNA template during Protein synthesis
Q.30.
Antiparallel strands of DNA molecule means that
-
0%
a) the phosphate group of two DNA strands, at their ends, share the same position
-
0%
b) the phosphate groups at the start of two DNA starnds are in opposite position (pole)
-
0%
c) one strand turns clockwise
-
0%
d) one strand turns anti-clockwise
Q.31.
Which one is the contractile protein [CBSE.PMT 1998]
-
0%
a) Collagen
-
0%
b) globular
-
0%
c) tropomycin
-
0%
d) keratin
Q.32.
The enzyme which fixes CO2 in C4 plant is [C.B.S.E. 2000]
-
0%
a) Hydrogenase
-
0%
b) PEP carboxyl ase
-
0%
c) Reductase
-
0%
d) RuBp carboxylase
Q.33.
The prosthetic group which is in the structure of enzyme [Manipal PMT 1997]
-
0%
a) Loosely combining
-
0%
b) tightly binding
-
0%
c) It contain organic or inorganic structure
-
0%
d) only inorganic
Q.34.
Which of the following cell organelles is rich in catabolic enzyme [PMT 2007]
-
0%
a) Ribosome
-
0%
b) chloroplast
-
0%
c) Mitochondria
-
0%
d) Golgicomplex
Q.35.
Enzyme which help in electron transfer are: [B.H.U. 1998]
-
0%
a) Cytochrome
-
0%
b) Isomerase
-
0%
c) Protease
-
0%
d) All of above
Q.36.
The pair of nitrogen base in DNA is conjugated with
-
0%
a) Disulphide bond
-
0%
b) Hydrogen bond
-
0%
c) Peptide bond
-
0%
d) Glycosidic bond
Q.37.
Which one is Purine base of RNA? [C.B.S.E. PMT 1996]
-
0%
a) Guanine
-
0%
b) Thymine
-
0%
c) Uracil
-
0%
d) Cytosine
Q.38.
Enzymes in boiling water .... [CPMT1995]
-
0%
a) Destroyed
-
0%
b) Denatured
-
0%
c) Ineffective
-
0%
d) Inactive
Q.39.
Which one of the following pairs is not correctly matched?
-
0%
a) Triose sugar → Glyceraldehyde → Aldo sugar
-
0%
b) Pentose sugar → Ribulose → Keto sugar
-
0%
c) Hexoses sugar → Fructose → Aldo sugar
-
0%
d) Triose sugar → Dihydroxy acetose → Keto sugar
Q.40.
Which one of the following pairs is not correctly matched?
-
0%
a) Galactose - Lactose
-
0%
b) Fructose - Glucose
-
0%
c) Fructose - Galactose
-
0%
d) Ribose - Deoxyribose.
Q.41.
Which of the following statement regarding to Lipid is not correct?
-
0%
a) Lipids are of three types i Simple ii Complex iii Steroids
-
0%
b) The lipids are a heterogenous group of compounds related to Fatty acids.
-
0%
c) Lipids are the important constituents of the diet because of their high energy value.
-
0%
d) Lipids are formed of C, H and O atoms, The number of H atom is less than that of O.
Q.42.
Which of the following the general formula of Carbohydrate?
-
0%
a) Cn(H2O)m
-
0%
b) Cn(H2O)n-1
-
0%
c) (C6H10O5)n
-
0%
d) None of these.
Q.43.
A : Amylopectin chains occur in the constitution of glycogen. R : In animal the food is stored as glycogen.
-
0%
a) If both the assertion and the reason are true and the reason is a correct explanation ofthe assertion.
-
0%
b) If both the assertion and the reason are true and the reason is not a correct explanation of the assertion.
-
0%
c) Assertion is true but the reason is false.
-
0%
d) Assertion is false but the reason is True
Q.44.
A : DHAP is an example of the phosphate of ketotriose sugar. R : DHAP formed during respiration.
-
0%
a) If both the assertion and the reason are true and the reason is a correct explanation ofthe assertion.
-
0%
b) If both the assertion and the reason are true and the reason is not a correct explanation of the assertion.
-
0%
c) Assertion is true but the reason is false.
-
0%
d) Assertion is false but the reason is True
Q.45.
: In fish liver oil, glycerol is present as alcohol. R : Glycerol are monohydroxy alcohol.
-
0%
a) If both the assertion and the reason are true and the reason is a correct explanation ofthe assertion.
-
0%
b) If both the assertion and the reason are true and the reason is not a correct explanation of the assertion.
-
0%
c) Assertion is true but the reason is false.
-
0%
d) Assertion is false but the reason is True
Q.46.
Carbohydrates are commonly found as starch in plant storage organs which of the following five properties of starch make it useful as a storage material? [CBSE PMT 2008] P. Easily transported. Q. Chemically non reactive. R. Easily digested by animals. S. Osmotically inactive. T. Synthesized during photosynthesis.
-
0%
a) P, R and T
-
0%
b) P and T
-
0%
c) Q and R
-
0%
d) Q and S
Q.47.
Most common monomer of Carbohydrate is ... .. [Orissa JEE 2008]
-
0%
a) Glucose
-
0%
b) Fructose
-
0%
c) Sucrose
-
0%
d) Maltose
Q.48.
Which of following elements are stored the information of Proteins?
-
0%
a) Lipid
-
0%
b) Polysaccharide
-
0%
c) Amino acid
-
0%
d) Nucleic acid
Q.49.
Which of the following is the most widely classification method of amino acid:
-
0%
a) Whittaker method
-
0%
b) Linnaeus method
-
0%
c) Ernest chain method
-
0%
d) Lehninger method
Q.50.
Which macromolecule is the most diverse in cell and controlling biochemical Properties?
-
0%
a) Polynucleotide
-
0%
b) Polysaccharide
-
0%
c) Polypeptide
-
0%
d) polysomes