Chapter: Biomolecules-2
351.

The product is realized from which site of the enzyme?

A. Simple site
B. active site
C. Complex site
D. Inactive site
Answer» B. active site
352.

What ‘A’ and ‘B’ indicates in the given figure (reaction)?

A. A= ES complex B=S
B. A=S B=E
C. A= ES complex B=E
D. A= EP complex, B=E
Answer» C. A= ES complex B=E
353.

which of the following enzyme would correct glucose in to glucose-6-phosphate

A. Hydrolyses
B. Lyases
C. Isomerases
D. Trans ferase
Answer» D. Trans ferase
354.

Glucose + ATP  glucose – 6-phosphate +ADP which enzyme occur this reaction?

A. Glucose isomerase
B. Glucose oxidase
C. Glucose dehydrogenase
D. Hexokinase
Answer» D. Hexokinase
355.

which enzyme would change glucose – 6 phosphate to fructose – 6 phosphate?

A. Transferase
B. Isomerase
C. Lyases
D. glucose phosphatase
Answer» B. Isomerase
356.

which enzyme involved in hydrolysis of maltose to glucose?

A. Synthetase
B. maltase
C. Galactose
D. Lyases
Answer» B. maltase
357.

the enzyme which also known as scissor?

A. Lyases
B. Ligarer
C. Isomerases
D. Trans ferasess
Answer» A. Lyases
358.

which enzyme involved in conversion of a molecular in to an isomer?

A. Lyases
B. Synthetase
C. Isomerase
D. Transferase
Answer» C. Isomerase
359.

The enzyme which break up fructose 1, 6 biphosphate in to fructose phosphates known?

A. Aldolase
B. Phosphatase
C. Fructose phosphase
D. Fructose
Answer» A. Aldolase
360.

Which enzyme is needed to digest food reserve in pea seeds?

A. Lipase
B. Nuclease
C. Proteases
D. Amylase
Answer» C. Proteases
361.

The best example of extra cellular enzyme is?

A. Nuclease
B. Digestive enzyme
C. Dehydrogenase
D. Lipase
Answer» B. Digestive enzyme
362.

A non-protein component of enzyme is called?

A. Co-factor
B. Activator
C. Co-enzyme
D. Inhibitor
Answer» A. Co-factor
363.

Which is an enzyme that joins acetic acid to Co A with the help of energy?

A. Acetic acid co. A Synthetase
B. Ligases
C. Acetyl co. A Synthetase
D. No one
Answer» C. Acetyl co. A Synthetase
364.

Carbonic anhydrase is activated in the presence of which elements?

A. Mb
B. Mn
C. Ca
D. Zn
Answer» D. Zn
365.

Vanadium is necessary for the activation of which enzyme?

A. Kinase
B. Maltase
C. Nitrogenase
D. Enolase
Answer» C. Nitrogenase
366.

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
Answer» B. Mg, Mn, Zn
367.

Which one is not a co. Enzyme?

A. NAD
B. NADP
C. FAD
D. ADP
Answer» D. ADP
368.

Find out the correct group of enzyme which is activated by calcium?

A. Nitric oxide Synthetase, protein phosphatase , adenylkinase
B. Acetyl co. A Synthetase, fructose isomerase protein phosphatase
C. Succinic dehydrogenase, Cytochrome oxidase, Aldolase
D. All above
Answer» A. Nitric oxide Synthetase, protein phosphatase , adenylkinase
369.

Which of the following sets is not co enzyme?

A. NAD, FAD, ATP
B. NAD, NHDP,FMN
C. Fe, Cu, Zn
D. V, Ca, Mg
Answer» A. NAD, FAD, ATP
370.

Co enzyme differs from prosthetic group because:-

A. They deactivates the enzymes
B. They do not attached with apoenzyme
C. They attached apoenzyme with loosely bound
D. They activates the enzymes
Answer» C. They attached apoenzyme with loosely bound
371.

S: protein carry out many functions in living organisms
A: all enzymes are made up of proteins
R: they are responsible for maintenance of proper rates of biochemical reaction in cell

A. S&A are true but R is false
B. S,A&R are true and R&A are the correct explanation of S
C. S is true but A&R both are false
D. S,A&R are true but R&A are not the correct explanation of S
Answer» B. S,A&R are true and R&A are the correct explanation of S
372.

Most abundant organic compound on earth is [C.B.S.E.2001] [karnataka- 2000]

A. Protein
B. Cellulose
C. Lipid
D. Steroid
Answer» A. Protein
373.

Which one is a simple protein? [Kerala 2004]

A. Albumin
B. Nucleoprotein
C. Lipoprotein
D. Glycoprotein
Answer» A. Albumin
374.

Bond formed between the first phosphate group and adenosine in ATP is

A. Nitrophosphate bond
B. Adenophosphate bond
C. Phosphoanhydride bond
D. Phosphoester bond
Answer» D. Phosphoester bond
375.

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
Answer» C. base-sugar-phosphate
376.

Which one is not a nucleotide? [AFMC 1998]

A. Adenine
B. Guanine
C. Thymine
D. Lysine
Answer» D. Lysine
377.

Which one is a molecule of ATP? [C.B.S.C. PMT 2000]

A. Nucleosome
B. Nucleoside
C. nucleotide
D. deoxyribose
Answer» C. nucleotide
378.

t-RNA is a polymer of: [MP PMT 1997]

A. Deoxyribonucleoside
B. ribonucleoside
C. Ribonucleotide
D. deoxyribotide
Answer» C. Ribonucleotide
379.

Which one is Purine base of RNA? [C.B.S.E. PMT 1996]

A. Guanine
B. Thymine
C. Uracil
D. Cytosine
Answer» A. Guanine
380.

Enzymes are formed by conjunction of which molecule? [AFMC 1994]

A. Fatty acid
B. glucose
C. amino acid
D. carbon
Answer» C. amino acid
381.

Co-enzyme means [B.H.U. 1997]

A. Metal
B. Vitamin
C. Inorganic compound
D. a & c both
Answer» B. Vitamin
382.

Enzymes in boiling water [CPMT1995]

A. Destroyed
B. Denatured
C. Uneffective
D. Inactive
Answer» B. Denatured
383.

Which one is the contractile protein [CBSE.PMT 1998]

A. Collagen
B. globular
C. tropomycin
D. keratin
Answer» D. keratin
384.

How many nucleotide present in DNA molecule which consist pair of 2000 N2 base? [MP.PMT 1994]

A. 2,000
B. 5,000
C. 10,000
D. 40,000
Answer» C. 10,000
385.

Which one is not gain by the hydrolysis of nucleoside? [DPMT 1996]

A. Purine
B. Pentose sugar
C. Phosphoric acid
D. Pyrimidine
Answer» C. Phosphoric acid
386.

Enzyme by natured: [CET chd 1998]

A. vitamin
B. carbohydrate
C. polypeptide
D. Fatty acid
Answer» C. polypeptide
387.

The pair of nitrogen base in DNA is conjugated with [PB PMT 1997]

A. Disulphide bond
B. Hydrogen bond
C. Peptide bond
D. Glycosidic bond
Answer» B. Hydrogen bond
388.

The prosthetic group which is in the structure of enzyme [Manipal PMT 1997]

A. Loosely combining
B. tightly binding
C. It contain organic or inorganic structure
D. only inorganic
Answer» C. It contain organic or inorganic structure
389.

Enzyme speed up rate of reaction by [C.B.S.E. 2000]

A. Combining with product
B. Forming reaction product complex
C. Changing equilibrium of reaction
D. Covering activation energy
Answer» D. Covering activation energy
390.

The catalytic efficiency of two different enzymes can be compared by the

A. The Km value
B. The PH qutimum value
C. Formation of the product
D. Molecular size of the enzyme
Answer» A. The Km value
391.

Which of the following cell organelles is rich in catabolic enzyme [PMT 2007]

A. Ribosome
B. chloroplast
C. Mitochondria
D. Golgicomplex
Answer» C. Mitochondria
392.

Enzyme which help in electron transfer are: [B.H.U. 1998]

A. Cytochrome
B. Isomerase
C. Protease
D. All of above
Answer» A. Cytochrome
393.

The enzyme which fixes CO2 in C4 plant is [C.B.S.E. 2000]

A. Hydrogenase
B. PEP carboxyl ase
C. Reductase
D. RuBp carboxylase
Answer» B. PEP carboxyl ase
394.

Enzyme involved in hydrolysis of starch to maltose is called: [PMT 1999]

A. Sucrase
B. Amylase
C. Lactase
D. Maltase
Answer» B. Amylase
Chapter: Biotechnology and its Applications
395.

In which of the following industrial areas biotechnology is applicable?

A. Health care
B. Environment
C. Agriculture
D. all of the above
Answer» D. all of the above
396.

Due to what food supply has increased during green revolution?

A. use of chemical
B. use of biochemicals
C. use of photochemicals
D. use of agrochemicals
Answer» D. use of agrochemicals
397.

The organizations whose genetic material has been altered using genetic engineering is called as -

A. Genetically mutant organism
B. Genetically modern organism
C. Genetically modified organism
D. Genetically transferred organism.
Answer» C. Genetically modified organism
398.

Full form of GMO is -

A. Genetically mutant organism
B. Genetically modern organism
C. Genetically modified organism
D. Genetically transferred organism
Answer» C. Genetically modified organism
399.

Which of the following is responsible for causing disease in plants?

A. viru
B. pesticide
C. Herbicide
D. all the above
Answer» A. viru
400.

Bt stands for -

A. Biotechnology
B. Bacteria tolerant
C. Bacillus thuringiensis
D. Bollworm toxin
Answer» C. Bacillus thuringiensis

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