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Bacteria grow most rapidly during the log phase.
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∙ 15y ago
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2 Can generation time be calculated from any phase of the growth curve?
No it connot for example, generation time cannot be calculated from the lag phase of a growth curve.
What are the significance of bacterial growth curve in food preservation?
Well bacterial growth curve give simply the time vs no of cell curve which can be consider for different bacteria that at which temprature and pH they can stop growing, which would help in preserving food.
What are the 4 phases of micro organism growth?
1. lag phase- cell does not increase in mass2. exponential phase-cell grows at maximum concentration3. stationary phase- straight line phase.balance between cell death and cell division.4. decline or death phase- cell death increase and cell division decrease.
What is the growth rate of E coli?
There are three stages the lag, log and stationary During the log phase E. coli is supposed to double every 20 minutes
What are the phases of logistic growth curve?
There are three phases in a logistic growth curve:1 - Lag phase: the initial stage on which population growth rates are slow as a result of a small population size (occurs when the population is small and is increasing slowly)2- Log phase: The stage in which population growth rates are very rapid (occurs when the population undergoes very rapid growth)3- Stationary phase: The phase in which population growth rates decrease as the population size reaches the carrying capacity and stabilizes (occurs at or close to the carrying capacity of the environment)HOPE THIS HELPS :D
What are the growth stages within a logistic growth curve?
4 stages lag phase, exponential phase, stationary phase and, decelerating phase
2 Can generation time be calculated from any phase of the growth curve?
No it connot for example, generation time cannot be calculated from the lag phase of a growth curve.
What is the stage where bacteria grows rapidly?
Under ideal conditions, the growth of a population of bacteria occurs in several stages termed lag, log, stationary, and death.During the lag phase, active metabolic activity occurs involving synthesis of DNA and enzymes, but no growth.Geometric population growth occurs during the log, or exponential phase, when metabolic activity is most intense..Following the log phase, the growth rate slows and the production of new cells equals the rate of cell death. This period, known as the stationary phase, involves the establishment of an equilibrium in population numbers and a slowing of the metabolic activities of individual cells. The stationary phase reflects a change in growing condition—for example, a lack of nutrients and/or the accumulation of waste products.When the rate of cell deaths exceeds the number of new cells formed, the population equilibrium shifts to a net reduction in numbers and the population enters the death phase, or logarithmic decline phase. The population may diminish until only a few cells remain, or the population may die out entirely.
What are the 3 growth patterns of bacteria?
Lag phase, growth phase, and when too many are present for the nutrients available, population collapse
What growth phase is an organism most sensitive?
It is the lag phase where an organism try to acclimatise in new environment.
What growth phase will gram - positive bacteria be most susceptible to penicillin?
Bacteria are most sensitive to antibiotics during the exponential stage (rapid growth).
There are five stages of growth in an open system of culture?
Lag phase, exponential or log phase, stationary phase, death phase, and phase of prolonged decline.
What are the significance of bacterial growth curve in food preservation?
Well bacterial growth curve give simply the time vs no of cell curve which can be consider for different bacteria that at which temprature and pH they can stop growing, which would help in preserving food.
What are the 4 phases of micro organism growth?
1. lag phase- cell does not increase in mass2. exponential phase-cell grows at maximum concentration3. stationary phase- straight line phase.balance between cell death and cell division.4. decline or death phase- cell death increase and cell division decrease.
What is the initial period of population growth for a species in an environment?
The initial period of population growth for a species in an environment is called the lag phase. This is a period of slow growth.
Whats the different between short lag phase and long lag phase in growth of bacteria?
Very Long Lag Phasea) if the innoculum is from an old cultureb) refrigerated culturec) innoculation of a culture into a chemically different mediumVery Short Lag Phasewhen a young, vigorously growing exponentialphase culture is transferred to fresh medium of the same composition
At what stage in the microbial growth curve spores develop?
Spores form during the Stationary Phase of the Bacterial Growth Curve. During the lag phase or the log phase, things are good for the bacteria, so they arent thinking about what it is like to live without all the resources that they need, so they dont start forming the spores yet. Once the bacteria reach the death phase they are not able to form spores anymore, let alone stay alive. So the only phase that the spore forming bacteria make there spores is during the stationary phase.
