BIO 250 Final Exam Questions With 100% Correct Answers | Latest Verified | Graded A+

BIO 250 Final Exam Questions With 100% Correct Answers | Latest Verified | Graded A+. What microbial process was responsible for changing Earth's atmosphere from one without oxygen to one with oxygen? Oxygenic photosynthesis 2. In the nitrogen cycle, which of the following phases involves the release of Nitrogen into the Earth's atmosphere? Denitrification 3. Farmers commonly inoculate legume crops with Rhizobium bacteria for which of the following purposes? The two form a symbiotic relationship increasing the plant's access to nitrogen. 4. In the secondary phase of wastewater treatment, why is air injected into the sludge as it is stirred and recirculated? The bioremediators need oxygen 5. Which of the following microorganisms is used to make yogurt? Lactobacillus bulgaricus 6. ATP is a Nucleotide that releases and stores energy in the cell 7. A viral capsid is composed of Proteins 8. Which of these are NOT considered living organisms? Viruses 9. Which of the following describes the order in which different types of RNA are involved in translation? Messenger RNA (mRNA), transfer RNA (tRNA), ribosomal RNA (rRNA) 10. What is the bacterial identification technique that, when positive, results in the bacterium staining two contrasting colors? Gram staining 11. Which of the following is found in some, but not all groups of eukaryotic microorganisms? Cell wall