A microliter is ______ of a milliliter.

A microliter is ______ of a milliliter.

• A. 1/100
• B. 1/10
• C. 1/1000
• D. 1/1000000

Answer: (C)

Metric prefixes show scale: micro means one millionth and milli means one thousandth. A microliter is one millionth of a liter, while a milliliter is one thousandth of a liter. When you compare them, a microliter is a thousand times smaller than a milliliter, so it is 1/1000 of a milliliter (0.001 mL). Practically, 1 mL equals 1000 μL, so 1 μL equals 0.001 mL.

Metric prefixes show scale: micro means one millionth and milli means one thousandth. A microliter is one millionth of a liter, while a milliliter is one thousandth of a liter. When you compare them, a microliter is a thousand times smaller than a milliliter, so it is 1/1000 of a milliliter (0.001 mL). Practically, 1 mL equals 1000 μL, so 1 μL equals 0.001 mL.