Microbiology final exam with correct Question and Answers 2024

Microbiology final exam with correct Question and Answers 2024 Envelope Which of the following is not associated with every virus? Palisade When bacilli in a chain fold back upon each other like a hinge, this cellular arrangement is termed a ______. Histones Proteins associated with DNA in the nucleus. Tropisms Viral tissue specificities are called ______. Lophotrichous The term that refers to the presence of a tuft of flagella emerging from a single site is ______. Mutualistic E. coli bacteria normally live in the human gut and produce vitamin K that the body uses. This is best termed a ______ relationship. Mutualistic Termites are insects that require the protozoan Trichonympha in their gut to synthesize the enzyme cellulase to degrade the cellulose in wood. The protozoan uses the end products of the cellulose breakdown (glucose). This is a(n) ______ relationship. lag phase The phase of the bacterial growth curve in which newly inoculated cells are adjusting to their new environment, metabolizing but not growing at an exponential rate, is the ______. hypotonic The cell wall will help prevent the cell from bursting in ______ conditions. photoheterotroph This microbe is photosynthetic, but in the absence of light it can use organic compounds as an energy source. Its carbon source is an organic compound. The appropriate classification for this organism would be ______. thermoduric microbe A microorganism that has an optimum growth temperature of 37°C, but can survive short exposure to high temperatures is called a(n) ______. Noncompetitive inhibition the end product binding to enzyme in noncompetitive site catalysts for RNA splicing Ribozymes are ______. coenzymes Most electron carriers are ______. 2 what is the usual net production of ATP