Cells Unit Exam Review

Front

What is the basic unit of life?

Back

Cell

Front

What are the three main components of the cell theory?

Back

1. All living things are made of cells. 2. Cells are the basic unit of life. 3. All cells come from pre-existing cells.

Front

What is a chromosome?

Back

Two daughter strands of replicated chromatin that are condensed into rod-shaped structures and connected by a centromere.

Front

What phase comes before Metaphase in cell division?

Back

Prophase

Front

What happens to swollen gums when rinsed with salt water?

Back

The water in the gums moves out due to the high concentration of salt in the solution.

Front

Which of the following is NOT part of the cell theory?

Back

Cells must contain DNA.

Front

What is the function of the cell membrane?

Back

It regulates what enters and leaves the cell.

Front

Define osmosis.

Back

The movement of water across a semipermeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What is the role of ribosomes in a cell?

Back

They are responsible for protein synthesis.

Front

What is the difference between prokaryotic and eukaryotic cells?

Back

Prokaryotic cells do not have a nucleus or membrane-bound organelles, while eukaryotic cells do.