BIOL 2051 : Microbial Growth And Ecology Study Guide
Document Summary
Microbial growth- study guide: distinguish between macronutrients and micronutrients, macronutrients are essential elements needed in large amounts. Micronutrients are needed in very small amounts: list all 10 macronutrients, carbon, oxygen, nitrogen, hydrogen, phosphorus, sulfur, potassium, magnesium, calcium, Where can a cell get phosphorus: nucleic acids and phospholipids need phosphorus, can be obtained from phosphate minerals and free phosphates, name a molecule that requires sulfur. Where can a cell get sulfur: amino acids such as cysteine and methionine and other vitamins, also iron-sulfur proteins, can be obtained from sulfides (s2-) and sulfates (so42-, name a molecule that requires potassium. Where can a cell get magnesium: required by many enzymes; used to stabilize ribosomes, membranes, and nucleic acids, name a molecule that requires iron. Where can a cell get calcium? (see table 5. 1: endospores; calcium used to stabilize cell walls, calcium-dipicolinic acid complex, name a structure that requires sodium.
