Structure, Functions, and Uses (Leaving Cert Biology): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What are enzymes?
What are enzymes?
Specialized proteins acting as catalysts
What model explains why enzymes only work with specific substrates?
What model explains why enzymes only work with specific substrates?
Lock-and-key model
What happens when an enzyme is denatured?
What happens when an enzyme is denatured?
It loses its shape and can't function
At what temperature do human enzymes work best?
At what temperature do human enzymes work best?
37°C
What is the optimal pH for pepsin, the stomach enzyme?
What is the optimal pH for pepsin, the stomach enzyme?
pH 2
What happens to reaction rate at high substrate concentrations?
What happens to reaction rate at high substrate concentrations?
It plateaus due to saturation
How does increasing enzyme concentration affect reaction rate?
How does increasing enzyme concentration affect reaction rate?
Linear increase in reaction rate
What is amylase used for in brewing?
What is amylase used for in brewing?
Breaking down starches into sugars
Which enzyme is used to produce lactose-free milk?
Which enzyme is used to produce lactose-free milk?
Lactase
Which enzyme is used to make biodiesel from plant oils?
Which enzyme is used to make biodiesel from plant oils?
Lipase
What is a key advantage of immobilized enzymes?
What is a key advantage of immobilized enzymes?
They can be reused multiple times
Which is a physical method of enzyme immobilization?
Which is a physical method of enzyme immobilization?
Enclosure in gel