Semester One Final Review

Front

What are stem cells?

Back

Undifferentiated cells that can become specialized cells after receiving a chemical signal.

Front

Is cytokinesis a phase of mitosis?

Back

False. Cytokinesis is the process that occurs after mitosis, dividing the cytoplasm of a parental cell into two daughter cells.

Front

In which direction does water move in a hypotonic solution?

Back

Water moves into the cell, causing the water level to increase on the left side.

Front

What process breaks down polymers into monomers?

Back

Hydrolysis.

Front

What happens during the G1 phase of the cell cycle?

Back

The cell grows and develops.

Front

Define hydrolysis.

Back

A chemical process that splits molecules by the addition of water.

Front

What is dehydration synthesis?

Back

A process that joins monomers to form polymers by removing water.

Front

What is the role of spindle fibers during mitosis?

Back

Spindle fibers separate chromosomes to opposite poles of the cell.

Front

What occurs during the S phase of the cell cycle?

Back

DNA replication occurs, resulting in the duplication of chromosomes.

Front

What is the function of checkpoints in the cell cycle?

Back

Checkpoints ensure that the cell is ready to proceed to the next phase, preventing errors.