Question

question 3 (bonus) (1 point)
what should be done if a microbiologist accidentally contaminates a culture?
ignore it and continue with the experiment
report the contamination and start over
discard the entire experiment
blame it on a lab partner
question 4 (1 point)
bacterial smears are fixed before staining to
affix the cells to the slide
make their walls permeable
make the cells visible
accept stain

Explanation:

For Question 3, ignoring contamination can lead to inaccurate results, discarding the whole experiment may be extreme without reporting, and blaming a partner is unethical. Reporting and starting over is the proper scientific - practice. For Question 4, fixing bacterial smears before staining is to attach the cells to the slide so they don't wash away during staining.

Answer:

Question 3: B. Report the contamination and start over
Question 4: A. affix the cells to the slide