NURSING ANM AND GNM

Detailed explanation-1: -The bacterium E. coli requires simple organic molecules for growth and energy-it is therefore a: B) chemoheterotroph. (It is a chemoheterotoph because it uses ORGANIC materials.

Detailed explanation-2: -E. coli is a chemoheterotroph capable of growing on any of a large number of sugars or amino acids provided individually or in mixtures. Some strains found in nature have single auxotrophic requirements, among them thiamin is common.

Detailed explanation-3: -An example of chemoheterotrophic bacteria is a sub-type called lithotrophic bacteria, also known as “rock eaters” or “stone eaters.” These bacteria are found in underground water sources and on the ocean floor where there are both mineral food sources and organic molecules available.

Detailed explanation-4: -Chemoheterotrophs are bacteria that must consume organic molecules to obtain both energy and carbon.

Detailed explanation-5: -Most chemoheterotrophs obtain energy by ingesting organic molecules like glucose. In contrast, chemoautotrophs are autotrophs that use chemical energy to produce carbohydrates.