Microbiology Lab Exam 2 2025 Questions & Answers with 100% Correct Answers | Verified

medium - a mixture of nutritional substances on or in which microorganisms grow autotroph - nutritionally deficient mutants that have lost the ability to synthesize a particular enzyme many microorganisms in this group: - can carry out photosynthesis - usually do not cause disease - synthesize organic compounds to obtain energy heterotroph - an organism that uses compounds to produce biomolecules autoclave - an instrument for sterilization by means of moist heat under pressure Autoclaving combines ____ and ____ to destroy high resistant bacteria. - high temp and high pressure What are six basic nutritional requirements of every living thing? - Water, carbon, nitrogen, metallic elements, energy and growth factors such as vitamins general purpose media - Designed to grow a broad spectrum of microbes that do not have special growth requirements enriched media - medium that contains special additives that could promote certain metabolic activities. (ex. trypticase soy agar, blood agar, yeast extract broth) - especially used for fastidious bacteria