The objective of this chapter is to introduce the nutritional groups of organisms based on sources of carbon, hydrogen (electrons), and energy.
 | photosynthetic bacteria (5-1) |
| plants and algae (5-2) |
| vitamins |
| amino acids |
| macronutrients (N, P, K, S, Mg, Na, Ca) |
| inorganic micronutrients (Cr, Co, Mn, Mo, Ni, Se, W, V, Zn, Fe) |
| temperature |
| pH |
| salinity |
| water potential |
| residence time |
| Composition of a Cell (5-7) |
| Forms of Elements Required (5-8) |
| Micronutrient Requirements (5-9) |
| Vitamins and Their Functions (5-10) |
| Comparison of Simple and Complex Requirements. (5-11) |
8.1. What is meant by the terms carbon, energy, and hydrogen sourses?
8.2. What are the carbon, hydrogen, and energy sources for photolithotrophs, photoorganotrophs, chemolithotrophs, and chemoorganotrophs? Give three examples of organisms that fit each category.
8.3. Define and give at least three examples of electron donors electron acceptors.
8.4. What are the major inorganic macronutrients? What is each used for?
8.5. What are five inorganic micronutrients and use of each?
8.6. What is the difference between defined, simple, and complex growth media.
8.7. What are some examples of organic growth factors and their requirements?
8.8. What are the major environmental parameters considered in optimizing for growth of microorganisms?
| chemolithotroph | chemoorganotroph | photolithotroph |
| photoorganotroph | electron donor | vitamin |
| electron acceptor | reducing agent | macronutrient |
| micronutrient | cofactor | buffer |
| redox potential | redox potential indicator |
