1- Free living bacterial cells are said to be _______________.

2- A bacteria found in a biofile is called __________.

3- What role do biofilms NOT play?
please choose the incorrect statement:

4- While treating a patient with cystic fibrosis you culture a sputum sample. In the culture you find clusters of Gram-positive cocci. What is the most likely etiologic agent?

5- Cystic fibrosis is a genetic disease that causes mucus to build up in the lungs. Most patients die from an infection caused by a Gram-negative bacilli. This bacteria forms a biofilm that protects it from phagocytes and antibiotics. What is the most likely etiologic agent causing the fatal infections?

6- Dental plaque is one of the best known examples of a biofilm. What Gram-positive cocci is known to be involved with the formation of dental plaques?