Unit 3: Enzymes, ATP, and Energy Flow

Front

What is an apex predator in a food web?

Back

An apex predator is a species that is at the top of the food chain and has no natural predators.

Front

Which cellular organelle is responsible for manufacturing ATP?

Back

Mitochondria are the organelles responsible for producing ATP through cellular respiration.

Front

Why are enzymes essential for life?

Back

Enzymes are essential because they speed up chemical reactions in living organisms, allowing processes to occur at a rate necessary for life.

Front

In the lock-and-key model of enzyme action, what fits into the active site of the enzyme?

Back

The substrate fits into the active site of the enzyme in the lock-and-key model.

Front

Can enzymes be reused after a reaction?

Back

Yes, enzymes can be reused multiple times after catalyzing a reaction.

Front

What is the role of ATP in cellular processes?

Back

ATP serves as the primary energy currency of the cell, providing energy for various biochemical reactions.

Front

What factors can affect enzyme activity?

Back

Factors that can affect enzyme activity include temperature, pH, substrate concentration, and the presence of inhibitors or activators.

Front

What is the difference between competitive and non-competitive inhibitors?

Back

Competitive inhibitors bind to the active site of an enzyme, while non-competitive inhibitors bind to a different site, altering the enzyme's function.

Front

What is the significance of the active site in enzyme function?

Back

The active site is the region of the enzyme where substrate molecules bind and undergo a chemical reaction.

Front

How does temperature affect enzyme activity?

Back

Enzyme activity typically increases with temperature up to an optimal point, after which high temperatures can denature the enzyme.