Question

multiple choice question
which type of mobility is smooth and requires no cellular appendage?

• twitching motility
• swarming
• gliding motility
• chemotaxis

Explanation:

To solve this, we analyze each option:

• Twitching motility: Involves pili (cellular appendages) for movement, so not smooth and no appendage - eliminating.
• Swarming: Involves flagella (appendages) and is a group - based movement, not smooth without appendages - eliminating.
• Gliding motility: Is a smooth movement of cells across surfaces without the use of flagella or pili (no cellular appendages) - matches the description.
• Chemotaxis: Is a movement in response to chemical gradients, not a type of motility that's defined by smoothness and no appendage (it can use appendages for movement) - eliminating.

Answer:

C. gliding motility