The Basis of the Membrane Filter Technique Is That

question 33

Multiple Choice

The basis of the membrane filter technique is that

• A)bacteria are small enough to go right through the filter.
• B)bacteria are larger than the holes in the filter.
• C)the membrane has an antibiotic that kills bacteria in the water.
• D)the dilutions of the sample allow a total bacterial count when plated out using pour or spread plates.

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Definitions:

Dependent Variable

In an experiment, it is the outcome or response that is measured to assess the effect of the independent variable.

Independent Variable

The variable in an experiment that is manipulated or changed to explore its effect on the dependent variable.

Neurotransmitter

Chemicals in the nervous system that transmit signals across a synapse from one neuron to another, influencing a wide range of bodily and psychological functions.

Dopamine

A neurotransmitter involved in many functions, including mood, sleep, learning, and the pleasure-reward system.