What type of surface does a rough colony exhibit?

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Prepare for the TAMU BIOL206 Introductory Microbiology Test. Study with flashcards and multiple choice questions. Each question has hints and explanations. Get ready for your exam!

A rough colony exhibits a texture that appears uneven and may have a gritty or textured surface when observed on an agar plate. This rough appearance can result from the irregularities in the growth patterns of the bacteria or fungal cells, which vary in size and shape compared to smooth colonies. The rough morphology in bacterial colonies often indicates specific characteristics of the microbial species, such as the presence of extracellular polysaccharides or structures that contribute to a more rugged surface.

In contrast, a smooth colony would typically present a uniform, shiny appearance. Wrinkled colonies may suggest a different texture that is not strictly categorized as rough, while a dry surface indicates moisture levels and may not directly correlate with the actual roughness of the colony's surface. Therefore, the description of a rough colony aligns closely with its visual characteristics and the biological implications of the organisms exhibiting that morphology.