After pouring off the supernatant in sediment preparation, what should be done next?

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Multiple Choice

After pouring off the supernatant in sediment preparation, what should be done next?

Explanation:
Re-suspending the sediment after removing the supernatant is the next step because you want to re-disperse the collected material into a uniform mixture. This prevents clumping and ensures an even distribution of cells for accurate microscopic examination and subsequent staining. Skipping re-suspension and pouring onto a slide right away can produce an uneven smear with clumps, making it hard to observe organisms. Centrifuging again would unnecessarily concentrate or disturb the sample, and discarding would waste valuable material.

Re-suspending the sediment after removing the supernatant is the next step because you want to re-disperse the collected material into a uniform mixture. This prevents clumping and ensures an even distribution of cells for accurate microscopic examination and subsequent staining. Skipping re-suspension and pouring onto a slide right away can produce an uneven smear with clumps, making it hard to observe organisms. Centrifuging again would unnecessarily concentrate or disturb the sample, and discarding would waste valuable material.

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