Bio I -Unit 2 Test - Unit 2 Homeostasis and Feedback (2.7-2.12)

Front

What diffuses into the capillaries in the alveoli?

Back

Oxygen

Front

What organelle controls what enters and exits the cell?

Back

Cell Membrane

Front

Which system brings oxygen from the environment into the body?

Back

Respiratory System

Front

What allows oxygen and carbon dioxide to diffuse across membranes?

Back

Concentration gradient

Front

What are the tiny sacs surrounded by capillaries where gas exchange occurs?

Back

Alveoli

Front

What is the primary function of the respiratory system?

Back

To facilitate gas exchange, bringing oxygen into the body and removing carbon dioxide.

Front

What is homeostasis?

Back

The process by which living organisms maintain a stable internal environment.

Front

What role do capillaries play in the respiratory system?

Back

They allow for the exchange of gases (oxygen and carbon dioxide) between the blood and the alveoli.

Front

What is the significance of the concentration gradient in gas exchange?

Back

It drives the movement of oxygen into the blood and carbon dioxide out of the blood.

Front

What is the function of the cell membrane?

Back

To protect the cell and regulate the movement of substances in and out.