A student was memorizing the arrangements of bacteria and noticed that there are more arrangements for cocci than for bacilli. Why might this be so?

For each of the following statements that is true, write “true” in the blank. For each statement that is false, write the word(s) that should be substituted for the underlined word(s) to make the statement correct.

__________ A giant bacterium that is large enough to be seen without a microscope is Selenomonas.

The type of reproduction in prokaryotes that results in a palisade arrangement of cells is called ___________ .

a. pleomorphic division

b. endospore formation

c. snapping division

d. binary fission

Which of the following terms best describes stiff, spiral-shaped prokaryotic cells?

a. cocci

b. bacilli

c. spirilla

d. spirochetes

Flexible spiral-shaped prokaryotes are __________ .

a. spirilla

b. spirochetes

c. vibrios

d. rickettsias

For each of the following statements that is true, write “true” in the blank. For each statement that is false, write the word(s) that should be substituted for the underlined word(s) to make the statement correct.

__________ If you were to view staphylococci, you should expect to see clusters of cells.

Streptococcus bacteria have what shape?

What is the morphology of the cells in the image below?

Vibrio cholerae causes the disease cholera. Based on the name of the bacterium, what is its shape?