What are some questions about microbiology?
15 in-depth questions What conditions can cause gram-positive bacteria to appear as gram-negative? Can you describe the applications of gram staining and explain why this method is so widely used in bacteriology? What alternatives can you use in a gram stain? When would you use DNA sequencing in your work?
What happens to cells during death phase?
In the death phase, the number of living cells decreases exponentially and population growth experiences a sharp decline. As dying cells lyse or break open, they spill their contents into the environment making these nutrients available to other bacteria.
What happens during the death phase quizlet?
d) the death/decline phase occurs when most of the cells have lost their ability to divide and the medium has become less supportive. The number of cells decreases at a logarithmic rate. The culture would begin to divide again if nutrients were replaced and waste was removed.
What is the golden age of microbiology?
However, the so-called ‘golden age of microbiology’ began in 1857, with the work of Louis Pasteur and Robert Koch, and lasted about 60 years. This is a period when many important discoveries were made, and techniques devised which are still used to this day.
What are some questions to ask about bacteria?
What are bacteria?
What is the lag phase?
: the period of time between the introduction of a microorganism into a culture medium and the time it begins to increase exponentially. — called also lag period. — compare log phase.
How do you stop lag in phases?
In bacterial physiology, lag phase is defined as the phase which is necessary for adaption of cells to new environment. During this phase the bacteria grow and the size increases; but the population density is almost constant. In textbook, it is recommended to have at least 5% of inoculum to decrease the lag phase.