Multiple choice

Which of the following statements are TRUE regarding bacteria? P. The bacterial cell wall is composed of chitin. Q. The cytoplasm of a bacterium is supported by microtubules. R. A gram-positive bacterium is stained purple by the gram stain. S. Bacterial flagella propel the cell by using a rotating motion.

  1. P and Q

  2. P and R

  3. Q and R

  4. Q and S

  5. R and S
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Both are true statements. A gram-positive bacterium is stained purple by the gram stain. Bacterial flagella propel the cell by using a rotating motion.

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