Final answer:
Microbes that are cultivated in a laboratory setting without exposure to the normal environment are referred to as a pure culture. Pure cultures allow microbiologists to study specific microbes by controlling growth conditions and employing strict aseptic techniques.
Step-by-step explanation:
The term used to describe microbes that are raised in a laboratory and not exposed to the normal environment is pure culture. A pure culture consists of a population of identical microorganisms that arise from a single cell and are grown in a controlled, sterile environment to prevent contamination. This method is essential for microbiologists, who utilize it to study the properties of specific microbes by providing appropriate growth conditions such as food, water, temperature regulation, pH control, and the right concentration of atmospheric gases. Aseptic techniques are applied meticulously to protect both the workers and the environment from the cultured organisms and also to protect the cultures from environmental contaminants.