Unit 2 Pre-test: Bio I

Front

What directs all cell activities?

Back

The Nucleus directs all cell activities through the DNA located there.

Front

How can cancer result from disruptions in the cell cycle?

Back

Cancer results from uncontrolled cell division due to mutations in genes that regulate the cell cycle.

Front

What is the role of the cell membrane in cellular transport?

Back

The cell membrane selectively allows substances to enter and exit the cell, maintaining homeostasis.

Front

What do ribosomes do in a cell?

Back

Ribosomes synthesize proteins.

Front

What is the basic unit of life in all living organisms?

Back

The basic unit of life in all living organisms is the Cell.

Front

What is the function of lysosomes?

Back

Lysosomes contain enzymes that break down waste materials and cellular debris.

Front

What is the role of mitochondria in a cell?

Back

Mitochondria are responsible for producing energy through cellular respiration.

Front

What is homeostasis?

Back

Homeostasis is the process by which a cell or organism maintains a stable internal environment.

Front

What is the function of the cell wall in plant cells?

Back

The cell wall provides structure and protection to plant cells.

Front

What is the difference between prokaryotic and eukaryotic cells?

Back

Prokaryotic cells lack a nucleus and membrane-bound organelles, while eukaryotic cells have both.