One of the following is INCORRECT about Spread plate a-Allow aerobic bacteria to grow b-The sample is spread on agar surface by a sterile glass spreader c-Only Surface colonies emerge after incubation d-Exclude Heat-sensitive bacteria.
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One of the following is INCORRECT about Spread plate
a-Allow aerobic bacteria to grow
c-Only Surface colonies emerge after incubation
d-Exclude Heat-sensitive bacteria.
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Solved in 4 steps
- Taking microbial cells out of a stationary phase culture and putting them into a fresh, sterile medium (in which they can grow) will result in the cells entering which stage of the growth cycle? Death phase O Log phase Lag phase Stationary phaseA. Bacterial Growth Curve Categorization. Drag and drop the microbial culture plates on the column that best represents the bacterial colony growth phase. -Number of Bacterial Cells (Log) ➡➡➡ Lag Exponential Phase Phase Stationary Phase Time (h) 24 Death Phase 48Describe characteristics of Streptococcus Agalactiae in the Agar: (How does colonies look like (color) and explain does it grow on that agar. (Don't have to write the incubation period) ~ Only describe how would it look like on the Agar: Blood Agar (Aerobic) MacConkey EMB PEA Mannitol Salt Agar Chocolate Agar Nutrient Agar
- Match the description to the correct phase in a standard bacterial growth curve. best time to perform Gram stains [ Choose ] [Choose ] phase in which one would see the highest concentration of endopores lag phase stationary phase phase in which bacteria are most sensitive to log/exponential stage antibiotics death/decline phase many bacteria ih biofilms are in this phase, [Choose] thus are more resistant to antibiotics stage at which "carrying capacity" is reached [Choose ]What is the purpose of fixing a smear? Mark all that apply: 1. To attach the bacteria to the slide 2. To cause the cells to shrink and become distorted 3. To kill the bacteria so they aren't harmed by the staining method 4. To break down the cell wall in order to make the cells accept stain 5. To kill the bacteria to make the slide safer to handleDescribe characteristics of Proteus Vulgaris in the Agar: (How does colonies look like (color) and explain does it grow on that agar. Blood Agar (Aerobic) MacConkey EMB PEA Mannitol Salt Agar Chocolate Agar Nutrient Agar
- 1 Figure 3. Two different types of bacterial colonies on an agar plate. Using microbiology terms, describe fully the colonial morphology of the two colonies shown above. A full description will include texture, transparency, color, and form (size, overall shape, margin, and elevation). Colony 1 Colony 2 2.Identify and explain the different parts of the bacterial growth curve Please explain with as LITTLE words possible, this is only to study for an upcoming exam I don’t need a lot of detailMSA (Mannitol Salt Agar) Match the description to the correct Bacterium A= growth, agar is yellow B= Growth, agar is not yellow C= no growth
- Which of the following statements regarding microbial control agents is FALSE? Question options: strongly acidic or alkaline disinfectants are typically more effective than neutral pH agents the presence of extracellular fats typically decreases the effectiveness of control agents a warmed disinfectant is typically more effective than the same disinfectant at room temperature substances secreted by members of biofilms increase protection against microbial control agents all of these statements are TRUE bacterial endospores are more resistant to antimicrobial treatment than vegetative bacterial cellsDRAW IT A bacterial culture was in log phase in the following figure. At time x, an antibacterial compound was added to the culture. Draw the lines indicating addition of a bactericidal compound and a bacteriostatic compound. Explain why the viable count does not immediately drop to zero at x. Time Log10 of number of cellsA culture initially has P0 number of bacteria. At t = 1 hour the number of bacteria is measured to be 3/2P0. If the rate of growth is proportional to the number of bacteria P(t) present at time t,determine the time necessary for the number of bacteria to triple.