Describe the process that allow Gram-positive bacteria to be tolerant to harsh environmental conditions. Explain why these bacteria are a threat in food industry.
Describe the process that allow Gram-positive bacteria to be tolerant to harsh environmental conditions. Explain why...
Name one media that will only allow Gram positive bacteria, but not Gram negative bacteria to grow and describe how this media select for gram positive bacteria.
Polyploid plants may be larger and more tolerant of harsh environmental conditions than diploid relatives because Their gene expression is 3x more than diploid relatives. they have redundant genes so if one becomes mutated another can still function and some redundant genes may mutate to produce a new beneficial function. O non-disjunction will never happen during meiosis the redundant genes will require less energy to maintain.
Describe the color of Gram positive and Gram negative bacteria in each step of the Gram staining procedure. (Be sure to account for the procedure, the reagent, and the colors of Gram negative and Gram positive bacteria in your description.)
43.Lipopolysaccharides (LPS) are found in: a. Gram-positive bacteria b. Gram-negative bacteria c. all Bacteria d. Archaea e. Eukaryotes ------------------------- 44. There are similarities and differences between Gram-negative and Gram-positive bacteria. Which of the following is not true? a. The cell wall of Gram-negative cells is composed of only one or two layers of peptidoglycan whereas the cell walls of Grampositive bacteria have many peptidoglycan layers b. Only Gram-positive bacterial cells have a periplasm 2/6/18 8 c. The cell membranes of...
66a. If you were to design a pathogenic bacteria justify why your bacteria would be Gram-positive or Gram- negative.
An antiseptic such as 70% alcohol dissolves lipids. It was observed that Gram-positive bacteria were more resistant to alcohol than Gram-negative bacteria. Is this an expected result? Why or why not, explain in detail.
Describe the differences in the transformation process in Gram-positive and Gram-negative organisms.
QUESTIONS 1) Are acid fast cells gram positive or gram negative? Explain why it might be difficult to determine the Gram reaction of acid fast cells. 2) What is the significance of the mycolic acid layer in the following contexts? A) To bacteria for survival and infection B) During the acid fast staining procedure QUESTIONS 1) What is the difference between a pure culture and a pure colony? Is a streaking for isolation plate a pure culture when your original...
Describe the structure of gram-positive and gram-negative cell walls and explain their differences.
1. Why are gram-negative bacterial more resistant than gram-positive bacteria to antimicrobial that attacks cytoplasmic targets? After viewing the videos on Spirochaetes and Neisseria, answer the following question: 12. Name 2 similarities and 2 differences between spirochaetes and Neisseria organisms?