Semester 1 Exam Honors Biology

Front

What happens when enzymes are heated to a high temperature?

Back

The shape of the enzyme is changed and it denatures.

Front

Which type of graph best represents data that shows a change over a period of time?

Back

Line graph.

Front

What is used to transfer small amounts of liquid?

Back

Pipette.

Front

What is the term for the region on an enzyme where the substrate binds?

Back

Active site.

Front

What is the independent variable in the experiment: How does the distance from an eye chart affect the number of letters that are recognized on a line?

Back

Distance from an eye chart.

Front

What is an enzyme?

Back

A protein that acts as a catalyst to speed up chemical reactions.

Front

What is denaturation in the context of enzymes?

Back

The process where an enzyme loses its shape and functionality due to external stress, such as heat.

Front

What is the role of a substrate in enzyme activity?

Back

The substrate is the reactant that an enzyme acts upon.

Front

What is the difference between a bar graph and a line graph?

Back

A bar graph compares different categories, while a line graph shows changes over time.

Front

What is the function of a graduated cylinder?

Back

To measure the volume of liquids accurately.