Lecture 7-8 Outline - MICROBIALGROWTH&CONTROL

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Living organisms require “nutrients” to grow and reproduce.   What are some of the common nutrients required by a microorganism? * Chemical elements required in “large” amounts:  C, H, O, N, S, P Chemical elements required in “small” amounts: K, Ca, Mg, Fe Chemical elements required in “trace” amounts: Mn, Zn, Co, Mo, Ni, Cu Based on the source of C, H, and energy, microorganisms are divided into various categories:  Table 5.1 * Know the definitions: Autotrophs-  org that uses CO2 as its sole source of carbon Heterotrophs- org that uses reduced, preformed organic molecules as its principal carbon source Phototrophs-  org that uses light as its energy source Chemotrophs-  org that obtains energy from the oxidation of chemical compounds Lithotrophs-  org that uses reduced inorganic compounds as its source of electrons Organotrophs-  org that uses reduced organic compounds as its  electron source Prototrophs-  microorg that requires the same nutrients as the majority of naturally occurring  members of its species Auxotrophs-  org w/ a mutation that cause it to lose the ability to synthesize an essential nutrient;  bc of the mutation, the org must obtain the nutrient or a precursor from the environment What are the major nutritional types of microorganisms? Table 5.2*
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 5

Lecture 7-8 Outline - MICROBIALGROWTH&CONTROL

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online