MLT 104 Final Exam 2023 with 100% correct answers

In a laboratory, the clinical microbiologist is responsible for all of the following EXCEPT: a) isolating microorganisms b) diagnosing diseases in patients c) identifying microorganisms d) analyzing bacteria that cause disease diagnosing diseases in patients This constituent of a gram-positive cell wall absorbs crystal violet but is not dissolved by alcohol, thus giving the gram-positive cell its characteristic purple color: a) mycolic acid b) cholesterol c) carbolfuchsin d) peptidoglycan peptidoglycan Mycobacterium have a gram-positive cell wall structure with a waxy layer containing these two compounds: a) glycolipids and mycolic acid b) glycolipids and phospholipids c) mycolic acid and lipopolysaccharides d) lipopolysaccharides and phospholipids glycolipids and mycolic acid When performing a gram stain on a gram-negative organism, the crystal violet is absorbed into this outer cell wall layer, then washed away with the acid alcohol. What is the main component of the outer layer of the cell wall? a) peptidoglycen b) mycolic acid c) N-acetyl-d-muramic acid d) lipopolysaccharide lipopolysaccharide