NC Biology Released Exam 2019

Front

What is the primary cause of ozone layer depletion?

Back

The release of CFCs (chlorofluorocarbons) is the primary cause of ozone layer depletion.

Front

What is the main function of a vacuole in a cell?

Back

The main function of a vacuole is storage.

Front

What is a desirable trait for transgenic plants?

Back

The ability to resist insects is a desirable trait for transgenic plants.

Front

What process can occur in both mitosis and meiosis?

Back

Gene mutation can occur in both mitosis and meiosis.

Front

How do cells from the same organism have different shapes and functions?

Back

During differentiation, different parts of the DNA in each type of cell are activated, resulting in different structures and functions.

Front

What are CFCs?

Back

CFCs (chlorofluorocarbons) are chemical compounds that contribute to ozone layer depletion.

Front

What is cell differentiation?

Back

Cell differentiation is the process by which a less specialized cell becomes a more specialized cell type.

Front

What is the role of DNA in cell differentiation?

Back

DNA contains the instructions that determine how a cell differentiates and what functions it will perform.

Front

What is the significance of vacuoles in plant cells?

Back

Vacuoles in plant cells are important for storage, maintaining turgor pressure, and supporting cell structure.

Front

What is a transgenic organism?

Back

A transgenic organism is one that has been genetically modified to contain DNA from another species.