Which item is described as a narrow, usually calibrated tube used to suction small amounts of liquid for transfer or measurement?

Which item is described as a narrow, usually calibrated tube used to suction small amounts of liquid for transfer or measurement?

• A. Pipette Filler-Dispenser
• B. Pipetting Bulb
• C. Pipette Pump blue
• D. Safety Glasses

Answer: (A)

The idea being tested is how a pipette is used to handle small, precise volumes of liquid. A pipette is a narrow, calibrated tube designed for suction and transfer, allowing accurate measurement of liquids. Among the options, the Pipette Filler-Dispenser is the closest match to this function because it’s the tool specifically designed to prepare and use pipettes for controlled liquid handling—drawing liquid into a pipette and dispensing it with precision. The pipetting bulb and the pipette pump are accessories that aid suction, but they are not the measuring tube itself, and safety glasses are just protective gear. So this option fits best with the described role of a pipette in precise liquid transfer.

The idea being tested is how a pipette is used to handle small, precise volumes of liquid. A pipette is a narrow, calibrated tube designed for suction and transfer, allowing accurate measurement of liquids. Among the options, the Pipette Filler-Dispenser is the closest match to this function because it’s the tool specifically designed to prepare and use pipettes for controlled liquid handling—drawing liquid into a pipette and dispensing it with precision. The pipetting bulb and the pipette pump are accessories that aid suction, but they are not the measuring tube itself, and safety glasses are just protective gear. So this option fits best with the described role of a pipette in precise liquid transfer.