Ch 6 Microbial nutrition

5. The growth phase where bacteria show little increase in number but are metabolically active.
7. The diffusion of water across a selectively permeable membrane from hypotonic to hypertonic areas.
8. Passive movement of molecules from an area of high concentration to low concentration.
9. Nutrients required in small amounts, usually for enzyme function and protein structure (e.g., manganese, zinc).
10. An organism that obtains its carbon from organic molecules (e.g., glucose).
11. Movement of substances from low to high concentration using ATP (energy).
13. An autotroph that uses light energy to produce organic molecules from CO₂.
14. An organism that is harmed or killed by oxygen.
15. Nutrients required in large quantities that play major roles in cell structure and metabolism (e.g., carbon, hydrogen, oxygen).
16. An organism that uses CO₂ as its carbon source and makes its own organic molecules.

1. A substance that must be provided to an organism for growth and survival.
2. An organism that obtains both carbon and energy from organic compounds.
3. The time required for a bacterial cell to divide into two cells.
4. A method of bacterial reproduction in which one cell divides into two identical cells.
5. The phase of rapid bacterial reproduction.
6. An organism that requires oxygen to grow.
12. An autotroph that uses energy from inorganic chemicals (not light) to produce organic molecules.