Unit 3: Enzymes, ATP, and Energy Flow

Front

What happens to energy as you work your way up the energy pyramid?

Back

It decreases.

Front

What is the bottom level of the energy pyramid composed of?

Back

Producers.

Front

What are the products in a chemical reaction?

Back

The substances formed as a result of a chemical reaction.

Front

How does an enzyme speed up a reaction?

Back

By lowering the activation energy.

Front

What is a food web?

Back

A complex network of feeding relationships among organisms in an ecosystem.

Front

What is the role of producers in an energy pyramid?

Back

They convert solar energy into chemical energy through photosynthesis.

Front

Define an enzyme.

Back

A biological catalyst that speeds up chemical reactions in living organisms.

Front

What is activation energy?

Back

The minimum energy required to initiate a chemical reaction.

Front

What is the difference between a food chain and a food web?

Back

A food chain is a linear sequence of organisms, while a food web is a complex network of interconnected food chains.

Front

What is ATP?

Back

Adenosine triphosphate, the energy currency of the cell.