What does a pump do in a lab context?

In a laboratory context, a pump is primarily used to manipulate liquids, and one of its common functions is to draw up liquid into a serological pipet. This device facilitates the accurate transfer of liquids, often characterized by its use in techniques requiring precision and control over liquid handling.

Serological pipets are typically used for transferring and measuring liquids in biological experiments and applications, so the ability of a pump to efficiently and accurately fill these pipets is instrumental in ensuring experimental consistency and reliability. Pumps are designed to create suction that helps in drawing liquid from one container and into another, such as a pipet, allowing for precise measurements and sample preparation.

In contrast, the other options relate to functions that are not performed by a pump in a lab setting. For example, measuring pressure, transferring heat, and measuring solids are tasks that involve different instruments or equipment tailored for those specific purposes. Therefore, the function of a pump in drawing liquid into a serological pipet is crucial for many laboratory procedures that rely on liquid handling.