Question

question 1
which of the following utensils is used to inoculate motility agar?
inoculating needle
inoculating loop
sterile cotton-tipped applicator
inoculating brush

Explanation:

Identify the inoculation method for motility agar

Motility test medium is a semi-solid agar designed to detect bacterial motility. To perform this test, a straight line must be stabbed into the center of the medium without shearing or spreading the agar.

Evaluate the appropriate tool

An inoculating needle is a straight wire used to make a clean, single-line stab into semi-solid media. An inoculating loop, cotton-tipped applicator, or brush would disrupt the agar structure and make it impossible to accurately determine if bacterial growth is spreading away from a single stab line.

Answer:

• inoculating needle (Correct answer)
• inoculating loop
• sterile cotton-tipped applicator
• inoculating brush