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Quiz 20
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Q.1
Match the terms in column-I with suitable terms in column-II
Column I
Column II
P PGAL
i The plant cell wall
Q Oleic acid
ii Plasma membrane and membrane of organiles.
R Glycerol
iii Unsaturated fatty acid
S Phospholipid
iv Phosphate aldotriose sugar
T Cellulose
v Trihydroxy alcohol
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a) P= v; Q= iv; R= i; S= ii; T= iii
0%
b) P= iv; Q= v; R= ii; S= i; T= iii
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c) P= iii; Q= iv; R= ii; S= v; T= i
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d)P= iv; Q= iii; R= v; S= ii; T= i
Explanation
Answer:(d )
Q.2
Which of the following options suggest number of carbons in descending order? P Fructose; Q Palmitic acid.; R Ribulose; S Oleic acid.
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a) R → Q → P → S
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b) R → P → Q → S
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c) S → Q → P → R
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d)S → P → Q → R
Explanation
Answer:(c)
Q.3
A : The myelin sheath around the nerve fibre contain lipid. R : That prevents the passage of nerve impulses in the adjacent nerve fibres.
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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.
0%
d) Assertion is false but the reason is True
Explanation
Answer:(a)
Q.4
Given below is the chemical formula is ... .. [Kerala PMT 2007]
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a) Palmitic acid
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b) Stearic acid
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c) Glycerol
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d) Galactose
Explanation
Answer:(a)
Q.5
Polypeptide chain of amino acid is:
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a) Nucleic acid
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b) Glycogen
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c) Protein
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d) Cellulose
Explanation
Answer:(c)
Q.6
The primary structure of proteins is due to
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a) Ionic bonds
0%
b) Peptide bonds
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c) Hydrogen bond
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d) S-S Linkages
Explanation
Answer:(b)
Q.7
The secondary structure of protein means
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a) The flat and sheet like polypeptide chain
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b) The helically coiled like polypeptide chain
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c) The folding of polypeptide chain due to the presence of hydrogen bond
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d) a, b, c all
Explanation
Answer:(d)
Q.8
Nucleic acid contains which group of molecules in their constitution?
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a) C, H, N and S
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b) C, H, O, N and S
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c) C, H, N, O, and P
0%
d) C, H, N and O
Explanation
Answer:(c)
Q.9
Which two sequential carbon number of nucleotides join through phosphodiester bond?
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a) 3 and 5
0%
b) 1 and 4
0%
c) 1 and 6
0%
d) 2 and 5
Explanation
Answer:(a)
Q.10
Enzyme involved in hydrolysis of starch to maltose is called: [PMT 1999]
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a) Sucrase
0%
b) Amylase
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c) Lactase
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d) Maltase
Explanation
Answer:(b)
Q.11
A: peptide bond is formed between the -COOH group of one amino acid and -NH2 group of another amino acid molecule R: a module of H2O is added in this process.
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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:(c)
Q.12
DNA nucleotides are attached with [A.F.M.C.2001]
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a) Hydrogen bonds
0%
b) covalent bonds
0%
c) Vander Waal's force
0%
d) Electrovalent bonds
Explanation
Answer:(b)
Q.13
Which enzyme is needed to digest food reserve in pea seeds?
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a) Lipase
0%
b) Nuclease
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c) Proteases
0%
d) Amylase
Explanation
Answer:(c)
Q.14
Carbonic anhydrase is activated in the presence of which elements?
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a) Mb
0%
b) Mn
0%
c) Ca
0%
d) Zn
Explanation
Answer:(d)
Q.15
Which one is not a co. Enzyme?
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a) NAD
0%
b) NADP
0%
c) FAD
0%
d) ADP
Explanation
Answer:(d)
Q.16
A: some protein transport nutrients across all membrane R: the variation in the different species of living organisms is due to the variation in their bimolecular
0%
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
0%
c) A true R false
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d) both A & R are false
Explanation
Answer:(b)
Q.17
Nucleotides are building blocks of nucleic acids each nucleotide is a composite Molecule formed by [C.B.S.C. 2005]
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a) (base-sugar-phosphate)n
0%
b) base-sugar-OH
0%
c) base-sugar-phosphate
0%
d) sugar-phosphate
Explanation
Answer:(c)
Q.18
The catalytic efficiency of two different enzymes can be compared by the
0%
a) The Km value
0%
b) The PH optimum value
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c) Formation of the product
0%
d) Molecular size of the enzyme
Explanation
The rate of reaction when the enzyme is saturated with substrate is the maximum rate of reaction, Vmax. The relationship between rate of reaction and concentration of substrate depends on the affinity of the enzyme for its substrate. This is usually expressed as the Km (Michaelis constant) of the enzyme, an inverse measure of affinity. For practical purposes, Km is the concentration of substrate which permits the enzyme to achieve half Vmax. An enzyme with a high Km has a low affinity for its substrate, and requires a greater concentration of substrate to achieve Vmax." Answer:(a)
Q.19
A: In the structure of oils, a molecules of three fatty acids and one glycerol. R : In the structure of oils only one Glycosidic bond.
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
Explanation
Answer:(c)
Q.20
Which the following regarding to examples of Keto sugar is not correctly?
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a) Fructose
0%
b) Ribulose
0%
c) Ribose sugar
0%
d) Dihydroxy acetose.
Explanation
Answer:(c)
Q.21
A : Polysaccharide, Protiens compounds have molecular weights in the range of ten thousand Daltons and above. R : The exception of Lipids, have molecular weights in the range of ten thousand Daltons and above.
0%
a) If both the assertion and the reason are true and the reason is a correct explanation of the 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:(b)
Q.22
hich molecules are the consist of a following molecule structure?
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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
Explanation
Answer:(b
Q.23
Match the items in column-I with items in column-II and the correct answer. [Kerala PMT 2006]
Column I
Column II
P Triglyceride
i. Animal hormones
Q. Membrane lipid
ii. Feathers and leaves
R. Steroid
iii. Phospholipids
S. Wax
iv. Fat stored in the form of droplets.
0%
a) P= iv; Q= iii; R= i; S= ii
0%
b) P= iv; Q= i; R= iii; S= ii
0%
c) P= iii; Q= iv; R= i; S= ii
0%
d) P= iv; Q= i; R= ii; S= iii
Explanation
Answer:(a)
Q.24
A : The general formula of disaccharide is Cn(H2O)n-1 R : The formula of sucrose is C12H22O11
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
Explanation
Answer:(a)
Q.25
Which of the following cell organelle is stored the information of synthesize Proteins?
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a) Mitochondria
0%
b) Nucleus
0%
c) Chloroplast
0%
d) Cell membrane
Explanation
Answer:(b)
Q.26
The unique property of each amino acid is determined by its particular:
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a) -COOH group
0%
b) -NH2 group
0%
c) -R group
0%
d) peptide bond
Explanation
Answer:(c)
Q.27
Which one of the following is an amphoteric compound?
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a) Fatty acid
0%
b) Glutamic acid
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c) Nucleic acid
0%
d) Cellulose
Explanation
Answer:(b)
Q.28
Which one is the correct group of amino acids with polar and negatively Charged -R group?
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a) Glutamate, Tyrosine
0%
b) Argentine, Lysine
0%
c) Tryptophan, Proline
0%
d) Glutamate, Aspartic acid
Explanation
Answer:(d)
Q.29
Which one is not correct for hemoglobin?
0%
a) It is known as conjugated protein
0%
b) It is the combination 0f 2- α and 2-&betta chain
0%
c) It is a protein which imparts color to the body
0%
d) It is molecule which contains four hacme groups.
Explanation
Answer:(c)
Q.30
Give the correct names of A, B and C shown in the figure
0%
a) A= Haem group, B=α - chain, C=&beeta -chain
0%
b) A=&beeta chain, B= Hacme group, C= =α -chain
0%
c) A= S-S bond, B=Haem group, C= peptide chain
0%
d) A =α - chain, B=S-S bonds, C=&beeta -chain
Explanation
Answer:(b)
Q.31
A : Vitamins A, D and E are fat soluble R : Vitamins D and E are synthesized from the derivatives of lipids
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
Explanation
Answer:(b)
Q.32
The structure of protein can be destroyed by which rays
0%
a) Ultra violet rays
0%
b) Infra red rays
0%
c) Radio waves
0%
d) Micro waves
Explanation
Answer:(a)
Q.33
Proteins Consist which one of the following
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a) One polypeptide
0%
b) One polypeptide chain
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c) One or more polypeptide chain
0%
d) One α and other &beeta- chain
Explanation
Answer:(c)
Q.34
Which one molecule is finding a Weakly acidic substrate of unknown function in The nuclei of human WBC ?
0%
a) Nucleic acid
0%
b) nuclein
0%
c) Protein
0%
d) Chromosome
Explanation
Answer:(a)
Q.35
What does the following diagram show?
0%
a) Quaternary structure of protein
0%
b) polypeptide chain
0%
c) Molecule structure of protein
0%
d) Secondary structure of protein
Explanation
Answer:(b)
Q.36
Nucleic acids are related with which activity?
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a) Digestion
0%
b) Respiration
0%
c) Reproduction
0%
d) Heredity
Explanation
Answer:(d)
Q.37
The distance between two chains of DNA molecules is:
0%
a) 34Å
0%
b) 20Å
0%
c) 3.4Å
0%
d) 10Å
Explanation
Answer:(b)
Q.38
Which one is two ringed nitrogenous base?
0%
a) Thymine
0%
b) Adenine
0%
c) Cytosine
0%
d) Uracil
Explanation
Answer:(b)
Q.39
Which is the part of DNA molecules that varies among DNA molecule
0%
a) Pentose sugar
0%
b) nitrogen base
0%
c) phosphate
0%
d) a & b both
Explanation
Answer:(b)
Q.40
What is Ribozymes?
0%
a) Only nucleic acids
0%
b) ony protein
0%
c) Some nucleic acids that behave like enzyme
0%
d) More than one Ribosome
Explanation
Answer:(c)
Q.41
Which one property is not true for enzyme?
0%
a) It effective for one reaction is not useful in another reaction
0%
b) It is amphoteric in nature
0%
c) All enzymes are bidirectional
0%
d) All enzymes are bidirectional
Explanation
Answer:(c)
Q.42
Enzymes are named after their substrate adding suffix -
0%
a) - In
0%
b) - ase
0%
c) - ose
0%
d) - on
Explanation
Answer:(b)
Q.43
the enzyme which also known as scissor?
0%
a) Lyases
0%
b) Ligarer
0%
c) Isomerases
0%
d) Trans ferasess
Explanation
Answer:(a)
Q.44
The enzyme which break up fructose 1, 6 biphosphate in to fructose phosphates known?
0%
a) Aldolase
0%
b) Phosphatase
0%
c) Fructose phosphase
0%
d) Fructose
Explanation
Answer:(a)
Q.45
Find out the correct group of co. factor which is activated enolase?
0%
a) Mg, Co, Ca
0%
b) Mg, Mn, Zn
0%
c) Co, Ca, V
0%
d) Mn, Zn, V
Explanation
Answer:(b)
Q.46
Which of the following structure shows the molecules?
0%
a) Glucose
0%
b) Fructose
0%
c) Galactose
0%
d) None of these
Explanation
Answer:(a)
Q.47
What is co - enzyme?
0%
a) Always a protein
0%
b) always a amino acid
0%
c) Often a vitamin
0%
d) Often a protein
Explanation
Answer:(c)
Q.48
Nitrogen bases do not contain
0%
a) Phosphorus
0%
b) Nitrogen
0%
c) Hydrogen
0%
d) Carbon
Explanation
Answer:(a)
Q.49
Which one group is the subunit of nucleotide?
0%
a) Pentose sugar, nitrogen
0%
b) Purina, pyrimidine, phosphorus
0%
c) Nitrogen base, sugar
0%
d) pentose sugar, Nitrogen base , phosphoric acid
Explanation
Answer:(d)
Q.50
m-RNA is the polymer of
0%
a) Ribonucleotide
0%
b) Ribonucleoside
0%
c) Deoxyribonucleotide
0%
d) Ribosome
Explanation
Answer:(a)
0 h : 0 m : 1 s
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