STAAR Biology Category 1 Review

Front

What is osmosis?

Back

Osmosis is the movement of water molecules through a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What happens to a cell in a hypertonic solution?

Back

In a hypertonic solution, water moves out of the cell, causing the cell to shrink.

Front

What is the difference between a lysogenic and a lytic infection?

Back

A lysogenic infection allows the virus to remain dormant in the host DNA for a longer period, while a lytic infection leads to the immediate production of new viruses and cell lysis.

Front

Define diffusion.

Back

Diffusion is the process by which molecules spread from an area of high concentration to an area of low concentration.

Front

What is a selectively permeable membrane?

Back

A selectively permeable membrane allows certain molecules to pass through while blocking others.

Front

What is the role of ribosomes in a cell?

Back

Ribosomes are responsible for protein synthesis in the cell.

Front

What is the function of the cell membrane?

Back

The cell membrane protects the cell and regulates what enters and exits the cell.

Front

What is the significance of the nucleus in a cell?

Back

The nucleus contains the cell's genetic material (DNA) and controls cellular activities.

Front

What is cellular respiration?

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy (ATP), carbon dioxide, and water.

Front

What is the function of enzymes?

Back

Enzymes are biological catalysts that speed up chemical reactions in the body.