BIOS 242 Exam 2 Questions And Answers Graded A+

A recently discovered new species of microorganism which does not use oxygen in its metabolism was discovered growing in pH 10, in hot springs, green in color and uses CO2 as source of carbon nutrient rich soil. Describe in detail the nutritional and physical requirements for this organism to grow, listing and explaining at least five characteristics. - Does not use O2 - anaerobe pH 10/lives in hot springs - alkalinophile Lives in hot springs - thermophile Green in color - photoautotroph/photoheterotroph uses CO2 (inorganic) form of carbon - autotroph/phototroph Active Transport - uses ATP to transport things into the cell against the concentration gradient Aerobe - an organism that needs oxygen to grow and metabolize aerobic metabolism - The cellular process in which oxygen is used to metabolize glucose. Energy is produced in an efficient manner with minimal waste products. aerobic respiration - Series of reactions that converts glucose to CO2 and allows the cell to recover significant amounts of energy - requires oxygen Aerobic Respiration - the principal energy-yielding pathway in where the final electron acceptor in the electron transport chain is oxygen (O2) Aerotolerant anaerobe - don't use oxygen but have the mechanisms to break down oxygen if it is present - they don't use oxygen in their metabolism Anabolism - building things up Anaerobe - doesn't possess the necessary enzymes to metabolize oxygen - meaning they metabolize without oxygenanaerobic metabolism - The cellular process in which glucose is metabolized into energy without oxygen. Energy is produced in an inefficient manner with many waste products.