Multiple Choice
Heterocysts
A) are found in nitrogen-fixing cyanobacteria AND produce catalase.
B) are found in nitrogen-fixing cyanobacteria AND are used to protect nitrogenase.
C) are used to protect nitrogenase AND generate oxygen.
D) produce catalase AND are found in nitrogen-fixing cyanobacteria.
E) are found in nitrogen-fixing cyanobacteria AND generate oxygen.
Correct Answer:

Verified
Correct Answer:
Verified
Q4: Bacteria and Archaea both have members that
Q5: Pseudomonas species<br>A) are resistant to many disinfectants and
Q6: A particular characteristic of disease-causing Streptococcus is<br>A)
Q7: Anoxygenic phototrophs<br>A) produce oxygen.<br>B) use water as
Q8: Which of the following structures would be
Q10: Azotobacter<br>A) forms endospores.<br>B) fixes nitrogen.<br>C) fixes carbon
Q11: Approximately 99% of the microbes in the
Q12: Which of the following about Mycoplasma is False?<br>A)
Q13: Hydrogen sulfide<br>A) is produced when nitrate is used
Q14: Movement of spirochetes occurs by means of