Unit One Test Review

Front

What is a hypotonic solution?

Back

A hypotonic solution is one where the concentration of solutes is lower outside the cell than inside, causing water to flow into the cell, potentially leading to swelling or bursting.

Front

What is a hypertonic solution?

Back

A hypertonic solution is one where the concentration of solutes is higher outside the cell than inside, causing water to flow out of the cell, leading to shrinkage.

Front

What is an isotonic solution?

Back

An isotonic solution is one where the concentration of solutes is equal inside and outside the cell, resulting in no net movement of water.

Front

What is the function of a vacuole?

Back

A vacuole is an organelle that stores materials such as food, water, and waste products in a cell.

Front

What is the role of enzymes in chemical reactions?

Back

Enzymes are biological catalysts that speed up chemical reactions by lowering the activation energy required for the reaction to occur.

Front

What is an active site?

Back

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

Front

What is a substrate in the context of enzyme activity?

Back

A substrate is the reactant molecule upon which an enzyme acts.

Front

What are products in a chemical reaction?

Back

Products are the substances that are formed as a result of a chemical reaction.

Front

What does it mean for a solution to be hypertonic?

Back

A hypertonic solution has a higher concentration of solutes compared to another solution, leading to water moving out of cells placed in that solution.

Front

What is the significance of the blue line in enzyme reactions?

Back

The blue line typically represents the reaction rate when an enzyme is present, indicating that the enzyme facilitates the reaction.