MacConkey (MAC) Agar is used to isolate gram-negative enteric bacteria. Peptone provides nutrients necessary for growth. Bile salts and crystal violet inhibit the growth of gram positive bacteria. Lactose is a sugar. When metabolized, colonies turn the medium pink. Agar is a solidifying agent. Which component/s make the MAC agar selective? a. Lactose b. Peptone c. Agar d. Bile salts & Crystal Violet

MacConkey (MAC) Agar is used to isolate gram-negative enteric bacteria. Peptone provides nutrients necessary for growth. Bile salts and crystal violet inhibit the growth of gram positive bacteria. Lactose is a sugar. When metabolized, colonies turn the medium pink. Agar is a solidifying agent. Which component/s make the MAC agar selective? a. Lactose b. Peptone c. Agar d. Bile salts & Crystal Violet

Comprehensive Medical Assisting: Administrative and Clinical Competencies (MindTap Course List)

6th Edition

ISBN:9781305964792

Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy Correa

Publisher:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy Correa

Chapter42: Basic Microbiology

Section: Chapter Questions

Problem 4CR

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