10 Questions
What happens to the rate of reaction as temperature increases towards the optimal level?
The rate of reaction increases due to more collisions between substrate and enzyme.
Why does the enzyme denature past the optimal temperature?
The heat alters the chemical bonds within the protein, changing the shape of the active site.
How does pH affect enzymes?
Extremes of pH can denature enzymes by interfering with their chemical structure.
What happens to the rate of reaction when substrate concentration increases?
The rate of reaction increases until all enzymes are engaged in enzyme-substrate complexes.
What happens when all enzymes are engaged in enzyme-substrate complexes?
The rate of reaction plateaus as enzymes reach maximum efficiency.
Why do enzymes have an optimal temperature?
To enable them to work most efficiently within a certain temperature range.
How does low temperature affect enzyme-substrate interactions?
It slows down the interactions because molecules move slower.
What occurs when enzymes denature due to high temperatures?
The shape of their active site changes, preventing substrate interactions.
Why do pH levels that are too acidic or too alkaline lead to enzyme denaturation?
They interfere with the chemical structure of enzymes, affecting protein shape.
What happens when all enzymes are occupied in enzyme-substrate complexes?
The rate of reaction plateaus as enzymes reach their maximum efficiency.
Explore the concept of diffusion in cells and how cells coordinate activities within their internal and external environments. Learn about the selectively permeable plasma membrane and the mechanisms of substance movement in and out of cells.
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