Prototrophs - Study guides, Class notes & Summaries

Explain how auxotrophic mutants can be isolated and how they inform us about metabolic pathways CORRECT ANSWER - screen for mutations in prototrophs (an organism capable of synthesizing all its metabolites from inorganic material) that cause them to become auxotrophic for a certain metabolite - map the mutation to a particular enzyme, then match enzyme to metabolic pathway - accumulations of the intermediate made before the blocked pathway help us piece together the biosynthetic pathways p...

What do cells need access to build macromolecules? carbon, nitrogen, phosphorus, sulfur, and oxygen What else do microbes need for growth? micronutrients What are micronutrients? metal ions such as zinc, cobalt, molybdenum, copper and manganese How do cells incorporate nutrients from their surroundings? assimilation What is assimilation? cells import a molecule and incorporate it into cellular constituents How do autotrophs obtain carbon? assimilate carbon from inorganic sources via carbon ...

Chapter 6

Science 8 reviewer for quarterly exam. Covers lesson from start to end of biodiversity, and genetics by gregor mendel.

PCB 3063-Test Bank for Chapter 9: Bacterial and Viral Genetic Systems Bacterial mutants that require supplemental nutrients in their growth media are called a. autotrophs. b. heterotrophs. c. prototrophs. d. omnitrophs. e. auxotrophs. Answer: e Section: 9.1 Comprehension Question 2. Which of the following statements about nutritional requirement and growth of bacteria is NOT true? a. Culture media developed for bacteria must contain carbon source and essential elements for the sur...