Biology Quiz - Enzymes
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This Biology Quiz on Enzymes explores key concepts about enzyme structure, function, and reaction conditions. It assesses understanding of enzyme activity, including denaturation and specific biochemical reactions, crucial for students in advanced biology courses.
- 1.
What is the 'shape' that an enzyme has and allows it to catalyse bodily reactions?
- A.
Active site
- B.
Active hearing
- C.
Inactive grumpy teen
- D.
Shape
Correct Answer
A. Active siteExplanation
An enzyme has a specific 'shape' known as the active site, which allows it to catalyze bodily reactions. The active site is a region on the enzyme's surface where the reactant molecules bind and undergo a chemical reaction. This specific shape of the active site enables the enzyme to interact with the substrate molecules in a precise and complementary manner, facilitating the conversion of reactants into products. This interaction involves a temporary binding of the substrate to the active site, resulting in the formation of an enzyme-substrate complex and the subsequent catalysis of the reaction.Rate this question:
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- 2.
When enzymes are in an environment past the temperature they work best at, they ___________.
Correct Answer
denatureExplanation
When enzymes are in an environment past the temperature they work best at, they denature. This means that the high temperature causes the enzyme's structure to change, disrupting its active site. As a result, the enzyme loses its ability to bind to its substrate and catalyze the reaction effectively. Denaturation can be irreversible, rendering the enzyme permanently inactive.Rate this question:
- 3.
Which is the odd one out?
- A.
Amylase
- B.
Protease
- C.
Lipase
- D.
Nomase
Correct Answer
D. NomaseExplanation
Amylase, Protease, and Lipase are all enzymes that play a role in digestion. However, "Nomase" does not exist and is not a known enzyme. Therefore, "Nomase" is the odd one out as it does not belong to the category of digestive enzymes.Rate this question:
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- 4.
What are the products of the chemical reaction that lipase catalyses?
- A.
Nitroglycerin and acid
- B.
Glycerol and fatty acid
- C.
Nitroglycerol and fatty acid
- D.
You and the person sitting next to you
Correct Answer
B. Glycerol and fatty acidExplanation
Lipase is an enzyme that catalyzes the breakdown of lipids (fats) into their component parts. In this case, the products of the chemical reaction that lipase catalyzes are glycerol and fatty acid.Rate this question:
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- 5.
One of the places protease is made is ______________.
Correct Answer
stomachExplanation
Protease is an enzyme that helps in the breakdown of proteins into smaller peptides or amino acids. The stomach is one of the primary sites where protease is produced. The gastric chief cells in the stomach lining secrete an inactive form of protease called pepsinogen. When pepsinogen comes into contact with the acidic environment of the stomach, it is converted into its active form, pepsin. Pepsin then plays a crucial role in breaking down dietary proteins into smaller fragments, facilitating digestion. Hence, the stomach is a significant source of protease production in the body.Rate this question:
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Current Version
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Feb 14, 2025Quiz Edited by
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Nov 12, 2009Quiz Created by
Twek22