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
  • a) P= v; Q= iv; R= i; S= ii; T= iii
  • b) P= iv; Q= v; R= ii; S= i; T= iii
  • c) P= iii; Q= iv; R= ii; S= v; T= i
  • d)P= iv; Q= iii; R= v; S= ii; T= i
Q.2
Which of the following options suggest number of carbons in descending order? P Fructose; Q Palmitic acid.; R Ribulose; S Oleic acid.
  • a) R → Q → P → S
  • b) R → P → Q → S
  • c) S → Q → P → R
  • d)S → P → Q → R
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.
  • a) If both the assertion and the reason are true and the reason is a correct explanation ofthe assertion.
  • b) If both the assertion and the reason are true and the reason is not a correct explanation of the assertion.
  • c) Assertion is true but the reason is false.
  • d) Assertion is false but the reason is True
Q.4
Given below is the chemical formula is ... .. [Kerala PMT 2007]
unit-3_ch-5_que_no-380_img_no1.png
  • a) Palmitic acid
  • b) Stearic acid
  • c) Glycerol
  • d) Galactose
Q.5
Polypeptide chain of amino acid is:
  • a) Nucleic acid
  • b) Glycogen
  • c) Protein
  • d) Cellulose
Q.6
The primary structure of proteins is due to
  • a) Ionic bonds
  • b) Peptide bonds
  • c) Hydrogen bond
  • d) S-S Linkages
Q.7
The secondary structure of protein means
  • a) The flat and sheet like polypeptide chain
  • b) The helically coiled like polypeptide chain
  • c) The folding of polypeptide chain due to the presence of hydrogen bond
  • d) a, b, c all
Q.8
Nucleic acid contains which group of molecules in their constitution?
  • a) C, H, N and S
  • b) C, H, O, N and S
  • c) C, H, N, O, and P
  • d) C, H, N and O
Q.9
Which two sequential carbon number of nucleotides join through phosphodiester bond?
  • a) 3 and 5
  • b) 1 and 4
  • c) 1 and 6
  • d) 2 and 5
Q.10
Enzyme involved in hydrolysis of starch to maltose is called: [PMT 1999]
  • a) Sucrase
  • b) Amylase
  • c) Lactase
  • d) Maltase
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.
  • a) Both A & R are true and R is the correct explanation of A
  • b) Both A & R are true but R is not the correct explanation of A
  • c) A true R false
  • d) both A & R are false
Q.12
DNA nucleotides are attached with [A.F.M.C.2001]
  • a) Hydrogen bonds
  • b) covalent bonds
  • c) Vander Waal's force
  • d) Electrovalent bonds
Q.13
Which enzyme is needed to digest food reserve in pea seeds?
  • a) Lipase
  • b) Nuclease
  • c) Proteases
  • d) Amylase
Q.14
Carbonic anhydrase is activated in the presence of which elements?
  • a) Mb
  • b) Mn
  • c) Ca
  • d) Zn
Q.15
Which one is not a co. Enzyme?
  • a) NAD
  • b) NADP
  • c) FAD
  • d) ADP
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
  • a) Both A & R are true and R is the correct explanation of A
  • b) Both A & R are true but R is not the correct explanation of A
  • c) A true R false
  • d) both A & R are false
Q.17
Nucleotides are building blocks of nucleic acids each nucleotide is a composite Molecule formed by [C.B.S.C. 2005]
  • a) (base-sugar-phosphate)n
  • b) base-sugar-OH
  • c) base-sugar-phosphate
  • d) sugar-phosphate
Q.18
The catalytic efficiency of two different enzymes can be compared by the
  • a) The Km value
  • b) The PH optimum value
  • c) Formation of the product
  • d) Molecular size of the enzyme
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.
  • a) If both the assertion and the reason are true and the reason is a correct explanation ofthe assertion.
  • b) If both the assertion and the reason are true and the reason is not a correct explanation of the assertion.
  • c) Assertion is true but the reason is false.
  • d) Assertion is false but the reason is True
Q.20
Which the following regarding to examples of Keto sugar is not correctly?
  • a) Fructose
  • b) Ribulose
  • c) Ribose sugar
  • d) Dihydroxy acetose.
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.
  • a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion.
  • b) If both the assertion and the reason are true and the reason is not a correct explanation of the assertion.
  • c) Assertion is true but the reason is false.
  • d) Assertion is false but the reason is True
Q.22
hich molecules are the consist of a following molecule structure?
unit-3_ch-5_que_no-398_img_no1.png
  • a) 3 glycerol + 1 fatty acid
  • b) 1 glycerol + 3 fatty acid
  • c) 3 glycerol + 3 fatty acid
  • d) glycerol + fatty acid
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.
  • a) P= iv; Q= iii; R= i; S= ii
  • b) P= iv; Q= i; R= iii; S= ii
  • c) P= iii; Q= iv; R= i; S= ii
  • d) P= iv; Q= i; R= ii; S= iii
Q.24
A : The general formula of disaccharide is Cn(H2O)n-1 R : The formula of sucrose is C12H22O11
  • a) If both the assertion and the reason are true and the reason is a correct explanation ofthe assertion.
  • b) If both the assertion and the reason are true and the reason is not a correct explanation of the assertion.
  • c) Assertion is true but the reason is false.
  • d) Assertion is false but the reason is True
Q.25
Which of the following cell organelle is stored the information of synthesize Proteins?
  • a) Mitochondria
  • b) Nucleus
  • c) Chloroplast
  • d) Cell membrane
Q.26
The unique property of each amino acid is determined by its particular:
  • a) -COOH group
  • b) -NH2 group
  • c) -R group
  • d) peptide bond
Q.27
Which one of the following is an amphoteric compound?
  • a) Fatty acid
  • b) Glutamic acid
  • c) Nucleic acid
  • d) Cellulose
Q.28
Which one is the correct group of amino acids with polar and negatively Charged -R group?
  • a) Glutamate, Tyrosine
  • b) Argentine, Lysine
  • c) Tryptophan, Proline
  • d) Glutamate, Aspartic acid
Q.29
Which one is not correct for hemoglobin?
  • a) It is known as conjugated protein
  • b) It is the combination 0f 2- α and 2-&betta chain
  • c) It is a protein which imparts color to the body
  • d) It is molecule which contains four hacme groups.
Q.30
Give the correct names of A, B and C shown in the figure
unit-3_ch-5_que_no-407_img_no1.png
  • a) A= Haem group, B=α - chain, C=&beeta -chain
  • b) A=&beeta chain, B= Hacme group, C= =α -chain
  • c) A= S-S bond, B=Haem group, C= peptide chain
  • d) A =α - chain, B=S-S bonds, C=&beeta -chain
Q.31
A : Vitamins A, D and E are fat soluble R : Vitamins D and E are synthesized from the derivatives of lipids
  • a) If both the assertion and the reason are true and the reason is a correct explanation ofthe assertion.
  • b) If both the assertion and the reason are true and the reason is not a correct explanation of the assertion.
  • c) Assertion is true but the reason is false.
  • d) Assertion is false but the reason is True
Q.32
The structure of protein can be destroyed by which rays
  • a) Ultra violet rays
  • b) Infra red rays
  • c) Radio waves
  • d) Micro waves
Q.33
Proteins Consist which one of the following
  • a) One polypeptide
  • b) One polypeptide chain
  • c) One or more polypeptide chain
  • d) One α and other &beeta- chain
Q.34
Which one molecule is finding a Weakly acidic substrate of unknown function in The nuclei of human WBC ?
  • a) Nucleic acid
  • b) nuclein
  • c) Protein
  • d) Chromosome
Q.35
What does the following diagram show?
unit-3_ch-5_que_no-412_img_no1.png
  • a) Quaternary structure of protein
  • b) polypeptide chain
  • c) Molecule structure of protein
  • d) Secondary structure of protein
Q.36
Nucleic acids are related with which activity?
  • a) Digestion
  • b) Respiration
  • c) Reproduction
  • d) Heredity
Q.37
The distance between two chains of DNA molecules is:
  • a) 34Å
  • b) 20Å
  • c) 3.4Å
  • d) 10Å
Q.38
Which one is two ringed nitrogenous base?
  • a) Thymine
  • b) Adenine
  • c) Cytosine
  • d) Uracil
Q.39
Which is the part of DNA molecules that varies among DNA molecule
  • a) Pentose sugar
  • b) nitrogen base
  • c) phosphate
  • d) a & b both
Q.40
What is Ribozymes?
  • a) Only nucleic acids
  • b) ony protein
  • c) Some nucleic acids that behave like enzyme
  • d) More than one Ribosome
Q.41
Which one property is not true for enzyme?
  • a) It effective for one reaction is not useful in another reaction
  • b) It is amphoteric in nature
  • c) All enzymes are bidirectional
  • d) All enzymes are bidirectional
Q.42
Enzymes are named after their substrate adding suffix -
  • a) - In
  • b) - ase
  • c) - ose
  • d) - on
Q.43
the enzyme which also known as scissor?
  • a) Lyases
  • b) Ligarer
  • c) Isomerases
  • d) Trans ferasess
Q.44
The enzyme which break up fructose 1, 6 biphosphate in to fructose phosphates known?
  • a) Aldolase
  • b) Phosphatase
  • c) Fructose phosphase
  • d) Fructose
Q.45
Find out the correct group of co. factor which is activated enolase?
  • a) Mg, Co, Ca
  • b) Mg, Mn, Zn
  • c) Co, Ca, V
  • d) Mn, Zn, V
Q.46
Which of the following structure shows the molecules?
unit-3_ch-5_que_no-423_img_no1.png
  • a) Glucose
  • b) Fructose
  • c) Galactose
  • d) None of these
Q.47
What is co - enzyme?
  • a) Always a protein
  • b) always a amino acid
  • c) Often a vitamin
  • d) Often a protein
Q.48
Nitrogen bases do not contain
  • a) Phosphorus
  • b) Nitrogen
  • c) Hydrogen
  • d) Carbon
Q.49
Which one group is the subunit of nucleotide?
  • a) Pentose sugar, nitrogen
  • b) Purina, pyrimidine, phosphorus
  • c) Nitrogen base, sugar
  • d) pentose sugar, Nitrogen base , phosphoric acid
Q.50
m-RNA is the polymer of
  • a) Ribonucleotide
  • b) Ribonucleoside
  • c) Deoxyribonucleotide
  • d) Ribosome
0 h : 0 m : 1 s