Biology Sem 1 Exam

Front

What goes before the arrow in a chemical equation?

Back

Reactant

Front

What is a biological catalyst?

Back

Enzyme

Front

What type of macromolecule are enzymes classified as?

Back

Protein

Front

What variable represents the data being collected in an experiment?

Back

Dependent Variable

Front

Why are there usually fewer top predators than primary consumers in an ecosystem?

Back

Energy is lost at each trophic level.

Front

What is the role of enzymes in biological reactions?

Back

To speed up the reactions by lowering the activation energy.

Front

What is the difference between a reactant and a product in a chemical reaction?

Back

Reactants are substances that start a chemical reaction, while products are substances formed as a result of the reaction.

Front

What is the function of the active site of an enzyme?

Back

It is the region where substrate molecules bind and undergo a chemical reaction.

Front

What is the term for the maximum population size that an environment can sustain?

Back

Carrying Capacity

Front

What is the primary source of energy for most ecosystems?

Back

The Sun