Podcast
Questions and Answers
What is the term used to refer to the entire active complex of an enzyme, including the apoenzyme and cofactor?
What is the term used to refer to the entire active complex of an enzyme, including the apoenzyme and cofactor?
- Coenzyme
- Metal ion
- Prosthetic group
- Holoezyme (correct)
Which of the following is a non-protein organic substance that is thermostable and loosely attached to the protein part of an enzyme?
Which of the following is a non-protein organic substance that is thermostable and loosely attached to the protein part of an enzyme?
- NAD (correct)
- ATP
- Fe+++
- Zn++
What is the main function of catalysts in enzyme action?
What is the main function of catalysts in enzyme action?
- To inhibit enzyme activity
- To reduce the energy barrier required for the transformation of a reactant into a product (correct)
- To increase the energy barrier required for the transformation of a reactant into a product
- To change themselves chemically in the reaction
Which enzyme is specifically mentioned as being used in bread making to produce dough that will rise easily and hold its shape and cell structure?
Which enzyme is specifically mentioned as being used in bread making to produce dough that will rise easily and hold its shape and cell structure?
In the context of wine production, which microorganisms are specifically mentioned as being used to produce enzymes such as pectinases, β-glycosidases, and β-glucanases?
In the context of wine production, which microorganisms are specifically mentioned as being used to produce enzymes such as pectinases, β-glycosidases, and β-glucanases?
Which of the following best represents the functionality of exogenous enzymes?
Which of the following best represents the functionality of exogenous enzymes?
What is the main challenge posed by endogenous enzymes?
What is the main challenge posed by endogenous enzymes?
What differentiates an active enzyme from an inactive enzyme?
What differentiates an active enzyme from an inactive enzyme?
What is the main function of all enzymes mentioned?
What is the main function of all enzymes mentioned?
How are food enzymes generally classified according to the text?
How are food enzymes generally classified according to the text?
Study Notes
Enzyme Terminology
- The entire active complex of an enzyme, including the apoenzyme and cofactor, is referred to as the holoenzyme.
Enzyme Components
- A cofactor is a non-protein organic substance that is thermostable and loosely attached to the protein part of an enzyme.
Enzyme Function
- The main function of catalysts in enzyme action is to speed up chemical reactions.
Enzymes in Food Production
- Amylase is an enzyme specifically used in bread making to produce dough that will rise easily and hold its shape and cell structure.
- Yeast is used in wine production to produce enzymes such as pectinases, β-glycosidases, and β-glucanases.
Exogenous and Endogenous Enzymes
- Exogenous enzymes are added to a system to perform a specific function.
- The main challenge posed by endogenous enzymes is that they can break down the food itself.
Enzyme Activity
- An active enzyme is differentiated from an inactive enzyme by its ability to catalyze chemical reactions.
Enzyme Classification
- Food enzymes are generally classified as either exogenous or endogenous enzymes.
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Description
Test your knowledge on enzymes in food processing, including their function, classification, and control. Explore the role of enzymes in transforming foods, producing food ingredients, and maintaining food quality.
