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Quiz 19
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Q.1
which kind of arrangement lies in the two polynucleotide chain of DNA?
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a) Antiparallel and complementary
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b) parallel and complementary
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c) Independent
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d) None above
Explanation
Answer:(a)
Q.2
Enzymes are present in which parts of plant?
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a) Only in leaves
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b) Only in fruits
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c) In apical meristem of root and shoot
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d) in all the living cell of plant body
Explanation
Answer:(d)
Q.3
A temperature change from 30o C to 50o C the rate of enzyme actively will:
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a) Increase
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b) Decrease
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c) First increase and then decrease
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d) First decrease and then increase
Explanation
Answer:(c)
Q.4
Which one of the following chemical is classified as an enzyme?
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a) Try glyceride
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b) Cellulose
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c) Galactose
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d) Sucrase
Explanation
Answer:(d)
Q.5
The product is realized from which site of the enzyme?
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a) Simple site
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b) active site
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c) Complex site
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d) Inactive site
Explanation
Answer:(b)
Q.6
Which one is a molecule of ATP? [C.B.S.C. PMT 2000]
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a) Nucleosome
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b) Nucleoside
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c) Nucleotide
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d) Deoxyribose
Explanation
Answer:(c)
Q.7
t-RNA is a polymer of: .... [MP PMT 1997]
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a) Deoxyribonucleoside
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b) Ribonucleoside
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c) Ribonucleotide
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d) Deoxyribotide
Explanation
Answer:(c)
Q.8
Enzyme speed up rate of reaction by ... ... [C.B.S.E. 2000]
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a) Combining with product
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b) Forming reaction product complex
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c) Changing equilibrium of reaction
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d) Covering activation energy
Explanation
Answer:(d)
Q.9
Which of the following sets is not co enzyme?
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a) NAD, FAD, ATP
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b) NAD, NHDP,FMN
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c) Fe, Cu, Zn
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d) V, Ca, Mg
Explanation
Answer:(a)
Q.10
A: Each enzyme has an effect on a particular reaction R: Glucose and galactose is the product of hydrolysis of lactose in presence of The lactose
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a) Both A & R are true and R is the correct explanation of A
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b) Both A & R are true but R is not the correct explanation of A
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c) A true R false
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d) both A & R are false
Explanation
Answer:(a)
Q.11
Which of the following pairs is not correctly matched?
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a) Butter - Glycerol + 3 Fatty acids.
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b) Waxes - Monohydroxy alcohol + 1 Fatty acid.
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c) Cortisone - Present of -COOH or >C=O group.
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d) Glycolipid - Glycerol + Lipid.
Explanation
Answer:(d)
Q.12
hich of the following statement regarding to Amylase is not correct?
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a) Unbranched polysaccharide chains made up of glucose units.
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b) Amylase occur in the constitution of glycogen.
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c) Amylase occur in more amount in starch.
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d) None of these.
Explanation
Answer:(b)
Q.13
P : In animal the food is stored as glycogen Q : Amylase and amylopectin are occurring in the constitution of glycogen.
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a) If both 'P' and 'Q' true and 'Q' is a correct explanation of’ P’
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b) If both 'P' and 'Q' true and 'Q' is not a correct explanation of’ P’
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c) If P is true the Q is false
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d) If P is false the Q is true
Explanation
Answer:(c)
Q.14
Specify the name of the fatty acids of the following structure in a given figure?
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a) Butyric acid
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b) Palmitic acid
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c) Stearic acid
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d) Oleic acid
Explanation
Answer:(d)
Q.15
A : Cholesterol do not contain Fatty acids. R : Cholesterol do not contain Carboxyl (- COOH) or Keto (>C=O) group.
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a) If both the assertion and the reason are true and the reason is a correct explanation ofthe assertion.
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b) If both the assertion and the reason are true and the reason is not a correct explanation of the assertion.
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c) Assertion is true but the reason is false.
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d) Assertion is false but the reason is True
Explanation
Answer:(b)
Q.16
A : Complex lipid which contain a non lipid constituent in addition ti alcohol and fatty acids. R : Phospholipid and Glycolipid are example of complex lipid
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a) If both the assertion and the reason are true and the reason is a correct explanation ofthe assertion.
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b) If both the assertion and the reason are true and the reason is not a correct explanation of the assertion.
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c) Assertion is true but the reason is false.
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d) Assertion is false but the reason is True
Explanation
Answer:(b)
Q.17
A: The subcutaneous fat layer under the skin, which maintains body temperature. R : Lipid form an insulating layer.
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a) If both the assertion and the reason are true and the reason is a correct explanation ofthe assertion.
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b) If both the assertion and the reason are true and the reason is not a correct explanation of the assertion.
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c) Assertion is true but the reason is false.
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d) Assertion is false but the reason is True
Explanation
Answer:(a)
Q.18
Which of the following are linked together to form Proteins ?
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a) Phosphate
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b) Nitrogen base
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c) Sugar
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d) Amino acids
Explanation
Answer:(d)
Q.19
At high temperature proteins are:
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a) Destroyed
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b) inactive
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c) denatured
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d) a or b
Explanation
Answer:(d)
Q.20
Aspartic acid and lysine are linkage each other with which bond:
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a) Ester bond
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b) Glycoside bond
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c) Phosphodiaster bond
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d) Peptide bond
Explanation
Answer:(d)
Q.21
Which bimolecular fights against infectious organisms?
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a) Lipid
0%
b) Nucleic acid
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c) Protein
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d) Enzyme
Explanation
Answer:(c)
Q.22
End of every polypeptide chain is known as:
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a) Template
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b) Signal
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c) Antenna
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d) Terminal
Explanation
Answer:(d)
Q.23
What is the shape of the three dimensional structure of protein?
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a) Flat sheet like
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b) Globular
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c) Fibrous
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d) b or c
Explanation
Answer:(d)
Q.24
What does the following diagram show?
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a) Quaternary structure of protein
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b) polypeptide chain
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c) Molecule structure of protein
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d) Secondary structure of protein
Explanation
Answer:(b)
Q.25
Nuclein separated in to which components?
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a) Protein + chromosome
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b) Protein + Nucleic acid
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c) Nucleic acid + nitrogen base
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d) Nuceicoside + Nucleotide
Explanation
Answer:(b)
Q.26
Nucleic acids means
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a) A major components of chromosomes
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b) Polynucleotide of structural units known as nucleotides
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c) Small gene carrying bodies in the nuclei of complex cells
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d) Both a & b
Explanation
Answer:(d)
Q.27
Which one is not a polymer?
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a) ATP
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b) Hemoglobin
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c) Nucleotide
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d) Enzyme
Explanation
Answer:(c)
Q.28
The following diagram represents the nitrogenous bases of nucleic acid Molecules Identify the correct combination:
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a) A= Guanine , B= Uracil
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b) A= Adenine , B= Thymine
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c) A= Cytosine , B= Adenine
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d) A= thymine , B= Guanine
Explanation
Answer:(a)
Q.29
DNA is localized in which cell organelle?
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a) Vacuoles
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b) Lysosomes
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c) Golgi apparatus
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d) Nucleus, mitochondria, chloroplast
Explanation
Answer:(d)
Q.30
Chemically DNA differs from RNA by:
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a) Thymine and deoxyribose present in DNA and Uracil and ribose in RNA
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b) Uracil and deoxyribose in DNA and thymine and ribose in RNA
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c) Deoxyribose in DNA and ribose in RNA
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d) Two nucleotide in DNA and one nucleotide in RNA
Explanation
Answer:(a)
Q.31
The scientists who discovered the structure of DNA molecule
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a) Miller and mandal
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b) Khorana and Nirenberg
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c) Calvin and Wilkinson
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d) Waston and Crick
Explanation
Answer:(d)
Q.32
Which of the following is incorrect?
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a) m-RNA is degreased after its function is over
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b) t-RNA are synthesized by m-RNA
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c) r-RNA is localized in the ribosome
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d) m-RNA carries genetic code in to cytoplasm
Explanation
Answer:(b)
Q.33
Which are proportionally more compounds in all RNA’s?
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a) m-RNA
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b) t-RNA
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c) r-RNA
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d) a, b, c all
Explanation
Answer:(c)
Q.34
What is an apoenzyme?
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a) Protein
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b) Amino acid
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c) metallic ions
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d) Carbohydrates
Explanation
Answer:(a)
Q.35
An enzyme brings about
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a) Activation energy level
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b) Increase in reaction time
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c) Decrease in activation energy level
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d) all above
Explanation
Answer:(c)
Q.36
At which place the substrate combines with the enzymes:
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a) Active site
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b) inactive site
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c) Common site
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d) Gap site
Explanation
Answer:(a)
Q.37
Match the terms in columns - I with suitable terms in column - II :
Column I
Column II
P, Glucose
i. (c
6
H
10
O
5
)
n
Q, Maltose
ii. R-COOH
R , Glycogen
iii. C
12
H
22
O
11
S , Fatty acids
iv. C
6
H
12
O
6
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a) P= iv; Q =i; R= iii; S= ii
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b) P =iv; Q =iii; R =i; S= ii
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c) P= iii; Q =iv; R =ii; S =i
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d) P =iv; Q =iii; R =i; S= ii
Explanation
Answer:(d)
Q.38
atch the terms in column-I with suitable terms in column-II.
Column I
Column II
P Butyric acid
i Long chain Unsaturated fatty acid
Q Stearic acid
ii Short chain Unsaturated fatty acid
R Oleic acid
iii Short chain Saturated fatty acid
S Crotonic acid
iv Long chain Saturated fatty acid
0%
a) P= iii; Q= iv; R= i; S= ii
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b) P= iii; Q= i; R=iv; S= ii
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c) P= iv; Q= iii; R= i; S= ii
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d) P= iv; Q= iii; R= ii; S= I
Explanation
Answer:(a)
Q.39
Lipids are relatively insoluble in ... ...
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a) Chloroform
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b) Water
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c) Benzene
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d) Ether.
Explanation
Answer:(b)
Q.40
P : Steroids do not contain Fatty acids. Q : In the structure of wax an alcohol molecule is one monohydroxy alcohol
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a) If both 'P' and 'Q' true and 'Q' is a correct explanation of 'P'
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b) If both 'P' and 'Q' true and 'Q' is not a correct explanation of 'P'
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c) If P is true the Q is false
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d) If P is false the Q is true
Explanation
Answer:(a)
Q.41
A : Lipids are insoluble in water. R : In structure of lipid the number of H atoms is much more than that of O.
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a) If both the assertion and the reason are true and the reason is a correct explanation ofthe assertion.
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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.
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d) Assertion is false but the reason is True
Explanation
Answer:(b)
Q.42
A : Oleic acid contain 18 carbon atoms and two successive carbon atoms at certain places therein are linked by double bond. R : Oleic acid are long chain unsaturated fatty acid.
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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
Explanation
Answer:(a)
Q.43
Find out the correct combination ... .. [GSEB 2011] i) Triose sugar - Ribose. ii) Starch - amylase and amylopectin iii) Plasma membrane - phospholipid iv) Melanin - sterols v) Pituitary hormones - peptide.
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a) Only ii, iii and iv
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b) Only I, ii and iii
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c) Only I and iii
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d) Only ii, iii and v
Explanation
Answer:(d)
Q.44
Full form of RUBISCO is:
0%
a) Ribulose Bisulphate Carboxylase Oxygenare
0%
b) Ribuose Biphosphate Carboxylase Oxygenare
0%
c) Ribuose Bisulphate Carboxylase Oxygenare
0%
d) Ribulose Biphosphate Carboxylase Oxygenare
Explanation
Answer:(d)
Q.45
Which one of the following pairs is correctly matched?
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d) Glycogen → Forms the plant cell wall.
0%
a) Fats → Long saturated Fatty acidss chain.
0%
b) Derivatives of Lipid → Vitamins A, D, E.
0%
c) Deoxyribose → RNA.
Explanation
Answer:(a)
Q.46
P : Cortisone molecules which contain only Carboxyl (-COOH) or keto C>C=O group. Q : Cortisone do not contain Fatty acids.
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a) If both 'P' and 'Q' true and 'Q' is a correct explanation of 'P'
0%
b) If both 'P' and 'Q' true and 'Q' is not a correct explanation of 'P'
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c) If P is true the Q is false
0%
d) If P is false the Q is true
Explanation
Answer:(a)
Q.47
The chemical formula of starch is ... .. [RPMT 2002]
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a) (C6H10O5)n
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b) (C6H12O6)n
0%
c) C12H22O11
0%
d) CH3COOH
Explanation
Answer:(a)
Q.48
Total numbers of amino acids are involved in protein synthesis in Plants:
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a) 10
0%
b) 22
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c) 13
0%
d) 20
Explanation
Answer:(d)
Q.49
The structure of protein can be denatured by
0%
a) At high temperature
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b) In dilute solution of acid
0%
c) In the presence of CO2
0%
d) a, b, c all
Explanation
Answer:(a)
Q.50
Match the terms in column-I with suitable terms in column-II.
Column I
Column II
P Glucose
i Stored food in plants
Q Cellulose
ii Reserve food in animals
R Starch
iii The plant cell wall
S Glycogen
iv Most widely used in respiration
0%
a) P= iv; Q= iii; R= ii; S= i
0%
b) P= iv; Q= iii; R= i; S= ii
0%
c) P= iii; Q=i; R= iv; S= ii
0%
d) P=iii; Q= iv; R= ii; S= i
Explanation
Answer:(b)
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