ENZYMES

90
Created on By buzzerkings

Enzymes

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 Ligases help in which of the following reactions?

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Restriction endonucleases found in

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 Enzyme succinate dehydrogenase converts succinate into: 

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 Poisons like cyanides, antibiotics and some drugs are examples of

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 The inhibitors that bind tightly and permanently to enzymes and destroy their globular structure stopping their catalytic activity are:

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The competitive inhibitors have structural similarity with:

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he structure of an enzyme is altered by which of the following inhibitors?

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Structure of enzyme is altered by:

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 In mixed inhibition, the inhibitor binds to:

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 In uncompetitive inhibition, the inhibitor binds with:

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Feedback inhibition in most metabolic pathways involves which type of enzymes?

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Which of the following best describes competitive inhibitors?

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 The non-substrate molecules that binds to the allosteric sites are called?

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 What is meant by enzyme denaturation?

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 A substance which binds at the active site of the enzyme but does not result in the formation of the products is called:

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 A chemical substance which can react (in place of substrate) with the enzyme but is not transformed into product/s and thus blocks the active site temporarily or permanently is called? 

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 In mixed inhibition, the allosteric affects:

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 The end product of an enzymatic reaction inhibits formation of product in an earlier  step. This type of enzymatic regulation is known as?

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 Inhibitors which block the enzyme by forming weak bond are called:

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What is the characteristic of a non-competitive inhibitor?

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 A researcher has designed a new type of inhibitor that binds at the active site of an enzyme. What type of inhibition does this molecule display?

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The rate of an enzyme-catalyzed reaction:

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The optimum pH of catalase is:

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The optimum pH of pepsin enzyme is:

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 The Optimum pH of Pancreatic Lipase is:

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The optimum pH for catalase activity is:

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Optimum pH value for enzyme Arginase is:

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The optimum pH of pepsin is:

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What is the optimum temperature for working of enzymes in human body?

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At low enzyme concentration, optimum pH and temperature, rate of reaction can be increased by:

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 If we increase the concentration of substrate then increase in the enzyme activity is due to which of the following?

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If the concentration of enzyme is kept constant and amount of substrate is increased a point is reached where increase in substrates concentration does not affect the reaction rate because of? 

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 The enzyme-substrate complex is formed in which part of the enzyme molecule?

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 Which statement correctly describes why enzyme activity increases with increased enzyme concentration?

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Rate of reaction is double for rise of every:

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Extreme change in pH results in which of the following?

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Upon increasing the maximum temperature the shape of the enzyme's active site?

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An enzyme reacts only with its specific:

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Induced fit model was proposed by:

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Enzyme lowers down the energy of:

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The view that active site of an enzyme is flexible and when a substrate combines with it, cause changes in enzyme structure is known as:

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Functions of enzymes include all of the following except: 

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In enzyme catalytic reaction the substrate is first converted to a high energy state called?

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While bound to the active site, the substrate is converted into which of the following?

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Number of substrate molecules converted into product by one molecule of enzyme active site per unit time is called?

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Which types of bond are never formed when a substrate fits into the active site of an enzyme?

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 How many models are present forenzyme-substrate complex or reaction?

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 In the lock and key model of enzyme activity, the substrate acts as the:

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 Catalytic activity takes place at:

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 An enzyme required Mg++ to catalyze the substrate. The Mg++ is best identified as:

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All coenzymes are derived from:

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Biochemically enzymes are:

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An enzyme with its co-enzyme or prosthetic group removed is designated as:

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Three dimensional globular protein is:

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The detachable co-factor of an enzyme is known as:

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 If non-protein part is loosely attached to protein, it is known as:

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 Enzyme reacts with substrate to form:

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Enzymes are globular proteins because:

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Enzymes involved in respiration are found in:

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Which of the following best describes a coenzyme?

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 Enzymes showing substrate specificity are specific to how many substrates?

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Which of the following form weak linkage with enzyme?

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 Nicotinamide adenine dinucleotide is an example of:

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What is true about enzymes:

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The detachable co-factor of an enzyme is known as:

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