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Questions and Answers
What is the term for enzymes that are formed of proteins only?
What is the term for enzymes that are formed of proteins only?
- Complex enzymes
- Conjugated enzymes
- Simple enzymes (correct)
- Holoenzymes
Which group of enzymes catalyze the reactions of oxidation and reduction?
Which group of enzymes catalyze the reactions of oxidation and reduction?
- Synthases
- Isomerases
- Transferases
- Oxidoreductases (correct)
What is the role of NAD+ as a coenzyme?
What is the role of NAD+ as a coenzyme?
- It acts as an electron withdrawer
- It catalyzes the reactions of oxidation and reduction
- It catalyzes the transfer of groups
- It acts as a hydrogen carrier (correct)
What is the term for enzymes that are formed of several subunits, each with a different catalytic activity?
What is the term for enzymes that are formed of several subunits, each with a different catalytic activity?
Which group of enzymes catalyze the transfer of groups other than hydrogen from one substrate to another?
Which group of enzymes catalyze the transfer of groups other than hydrogen from one substrate to another?
Which of the following best describes enzymes?
Which of the following best describes enzymes?
What is the difference between catalyzed and uncatalyzed reactions?
What is the difference between catalyzed and uncatalyzed reactions?
Which statement about the general properties of enzymes is true?
Which statement about the general properties of enzymes is true?
What is optical specificity (stereospecificity) in relation to enzymes?
What is optical specificity (stereospecificity) in relation to enzymes?
What is group specificity in relation to enzymes?
What is group specificity in relation to enzymes?
Enzymes located outside the cell are called housekeeping enzymes
Enzymes located outside the cell are called housekeeping enzymes
Holoenzyme is the functional unit of simple enzymes
Holoenzyme is the functional unit of simple enzymes
Metal cofactors are considered as organic cofactors
Metal cofactors are considered as organic cofactors
NAD+ acts as a hydrogen carrier
NAD+ acts as a hydrogen carrier
Mg+2 acts as an electron withdrawer facilitating the action of DNA polymerase
Mg+2 acts as an electron withdrawer facilitating the action of DNA polymerase
Fatty acid synthase enzyme is an example of a simple enzyme
Fatty acid synthase enzyme is an example of a simple enzyme
Oxidoreductases catalyze the reactions of oxidation and addition of oxygen
Oxidoreductases catalyze the reactions of oxidation and addition of oxygen
Transferases catalyze the transfer of groups other than hydrogen from one substrate to another
Transferases catalyze the transfer of groups other than hydrogen from one substrate to another
Synthases are not considered transferases
Synthases are not considered transferases
Isomerases catalyze the introduction of a functional group into a molecule
Isomerases catalyze the introduction of a functional group into a molecule
Enzymes are consumed within the reaction they catalyze.
Enzymes are consumed within the reaction they catalyze.
Not all enzymes are protein in nature.
Not all enzymes are protein in nature.
Enzymes act within a wide pH and temperature range.
Enzymes act within a wide pH and temperature range.
Optical specificity refers to enzymes acting on both isomers of a compound.
Optical specificity refers to enzymes acting on both isomers of a compound.
Group specificity involves enzymes acting on a specific group or linkage.
Group specificity involves enzymes acting on a specific group or linkage.
Intracellular enzymes are secreted from the cell where they function.
Intracellular enzymes are secreted from the cell where they function.
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