Biology Sem 1 Exam

Front

What is the term for the substance that an enzyme acts upon?

Back

Substrate

Front

What happens to blood cells when salt is added to them?

Back

They get smaller.

Front

Which variable in an experiment represents the data being collected?

Back

Dependent Variable

Front

What is the term for the process where the concentration of a substance increases as you move up the food chain?

Back

Biomagnification

Front

What type of macromolecule are enzymes classified as?

Back

Proteins

Front

What is the role of an enzyme in a biochemical reaction?

Back

To speed up the reaction by lowering the activation energy.

Front

What is the difference between an independent variable and a dependent variable?

Back

The independent variable is manipulated, while the dependent variable is measured.

Front

What is the term for a relationship where two different species live together and interact?

Back

Symbiosis

Front

What is a food web?

Back

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

Front

What is the primary function of carbohydrates in living organisms?

Back

To provide energy.