Question # 1

The enzyme that works best at intermediate pH is

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Pepsin

Chymotrypsin

Sucrase

Pancreatic lipase

The rate of enzyme action will be minimum at

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Optimum pH

Optimum temperature

Optimum conditions

Maximum temperature

Enzymes present in human body generally have

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Same optimum temperature and optimum pH

Same optimum temperature but different optimum pH

Same optimum pH but different optimum temperature

Different optimum temperature and optimum pH

Which of the following acts as a bridge between enzyme and substrate?

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Activator

Cofactor

Prosthetic group

Apo-enzyme

Nicotinamide adenine dinucleotide is an example of

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Cofactor

Coenzyme

Prosthetic group

Nucleotide

______form the raw material for coenzyme

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Nucleic acid

Lipids

Vitamins

Proteins

Urine is preferably used as a vehicle for biotechnology product than:

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Blood

Milk

Plasma

Tissue fluid

Succinic acid dehydrogenase +succinic acid and high concentration of malonic acid?

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Maleic acid

Fumaric acid

No reaction

Oxalic acid

Inorganic ions can play a role of ¬¬¬¬¬¬¬______ in enzyme catalysis

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Coenzyme

Inhibitor

Apo enzyme

Cofactor

Which of the following helps in recognition of substrate

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Active site

Catalytic site

Binding site

All

Phosphorylation of glucose molecule in glycolysis is carried out by

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ATPase

Kinase

Isomerase

Transferase

If substrate concentration is unlimited, rate of enzyme action becomes

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Inversely proportional to enzyme concentration

Directly proportional to enzyme concentration

Directly proportional to substrate Concentration

Inversely proportional to substrate

Concentration

Enzyme works to its maximum capacity

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At high temperature

At low temperature

At moderate temperature

At optimum temperature

Pick up the correct statement according to induced fit model of enzyme action

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Enzyme induces changes in substrate structure

Substrate induces changes in enzyme structure

Active site of enzyme is a rigid structure

Active site of enzyme is used as a template +

Which of the following is an example of ribozyme

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Aminopeptidase

Pancreatic lipase

Peptidyl transferase

Cytochrome oxidase

Ribozyme is found in

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Mitochondria

Cytoplasm

Lysosomes

Ribosomes

Formation of ES complex activates the______ site of an enzyme

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Active

Binding

Catalytic

Allosteric

Which of the following kind of inhibitors don’t compete for active site of enzyme

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Irreversible competitive

Reversible competitive

Reversible non competitive

Both b and c

Potentially damaging enzymes are produced in

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Active form

Inactive form

Abundant quantity

Minor quantity

An activated enzyme consisting of polypeptide and cofactor is called as

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Activator

Apoenzyme

Holoenzyme

Coenzyme

Prosthetic groups are

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Radicals

Inorganic molecules

Organic molecules

Metal ions

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