BIOD 171 Portage Learning/Module 4 Exam Questions and Answers Latest Update

BIOD 171 Portage Learning/Module 4 Exam Questions and Answers Latest Update Question 2 pts BIOD 171 Portage Learning/Module 4 Exam Questions and Answers Latest Update True or False: Growth media is best suited for distinguishing between two similar species of bacteria. True False Growth media is designed to simply support (and not restrict) microbial growth. A researcher is asked to determine if a sample contains Neisseria meningitides . Knowing Neisseria meningitides is slow growing and other foreign microbes may also be present in the culture, which type of media would be best suited? Question 1 pts BIOD 171 Portage Learning/Module 4 Exam Questions and Answers Latest Update Question 3 pts Question 4 pts Growth media Correct! Selective media Selective media. If additional foreign microbes may be present in your sample and you know Neisseria meningitides is slow growing, you must restrict the unwanted microbes while supporting the growth of Neisseria meningitides. Thus, you are selectively encouraging one microbes growth, while selectively restricting others. Selective and Differential media Differential media What are the requirements of a fastidious microbe? A fastidious microbe is an organism with complex growth requirements such that if absent it will not grow. Enriched medias thus contain these specific and essential nutrients required for the growth of a particular subset of microorganisms. BIOD 171 Portage Learning/Module 4 Exam Questions and Answers Latest Update Question 5 pts True or False: LB agar is classified as a non-selective, non-differential media. Correct! True LB agar is the most basic type of agar and like LB media supports the growth of virtually all microbes without restriction. False The polysaccharide -based hardening agent added to LB media to produce LB agar is derived from what? Your Answer: Seaweed extract Seaweed (algae) extract.