Question

question 3
the structure that aids in locomotion of some bacteria is a(an):
a attachment pilus
b flagellum
c endospore
d cilium
10 points
question 4
long structures that help bacteria move are called __, while shorter, hair - like structures that enable bacteria to stick to a surface are called __.
a pili; flagella
b vibrissae; flagella
c vibrissae; pili
d flagella; vibrissae
e flagella; pili

Explanation:

• Question 3:
• Attachment pili (fimbriae) are used for adhesion, not locomotion.
• Endospores are for survival in harsh conditions, not movement.
• Cilia are not present in bacteria (they are in some eukaryotes like paramecium).
• Flagellum is a long - whip like structure that helps bacteria move (e.g., E. coli has flagella for locomotion).
• Question 4:
• Flagella are long structures for movement.
• Pili (attachment pili or fimbriae) are short hair - like structures for adhesion (sticking to surfaces). Vibrisae are not bacterial structures related to the given functions.

Answer:

• Question 3: B. Flagellum
• Question 4: E. flagella; pili