Chpt 7 intro

Study of vital life processes of organisms

• biochemistry

• physiology

• microphysiology

• Inorganic chemistry

concerns the vital life processes of microorganisms

• microbial physiology

• physiology

• chemistry

• biological chemistry

Carbon, hydrogen, oxygen, nitrogen, phosphorus and sulfur are the 6 major chemical elements of living organisms

• true

• false

All organisms require a nutrients (essential), source of energy and..

• source of potassium

• source of carbon

• source of sulfur

• source of oxygen

Microbes representing 4 major nutritional catergories:

photoautotrophs, photoheterotrophs, chemoautotrophs, chemoheterotrophs

• true

• falso

organisms that use light as an energy source

• phototrophs

• chemotrophs

• autotrophs

• heterotrophs

Organisms that use inorganic or organic chemicals as an energy source

• phototrophs

• chemotrophs

• autotrophs

• heterotrophs

Organisms that us Carbon Dioxide or carbon as source. ex plants, algae, cyanobacteria

• phototrophs

• chemotrophs

• autotrophs

• heterotrophs

Organisms use organic compounds as carbon source:ex. humans, animals, fungi, protozoa

• autotrophs

• chemotrophs

• phototrophs

• heterotrophs

Organisms the use both light source and Carbon Dioxide as carbon source; EXAMPLES plants algae and cyanobacteria

• Heterotrophs

• photoautotrophs

• chemoautotrophs

• chemoheterotrophs