A patient comes in with an acute infection and are prescribe

A patient comes in with an acute infection and are prescribe antibiotics. How confident are you that this approach will completely ameliorate the problem? Very antibiotics have been around since the 1800s they are the gold standard of Western Medicine Very, acute infections tend to be planktonic. This is when a bacterium is most vulnerable to antibiotics. Very, acute infections tend to be sessile and form biofilms. This is when a bacterium is most vulnerable to antibiotics Not so much, acute infections tend to be planktonic. This is when a bacterium to Yeast vulnerable to antibiotics. Not so much, acute infections tend to be sessile and form biofilms This is when a bacterium is least vulnerable to antibiotics You are working in lab and put a plate of mesophilic bacteria into an incubator labeled 37 C Your lab mate puts her plate, of the same strain of bacteria into another incubator labeled 37 C You come back a few days later and remove your plate. After comparing your plate to your lab mates, you start to wonder if the incubator that you used was actuary colder than 37 C Why might you wonder that? You have way fewer colonies than your lab mate Your colonies are much larger Your colonies are much smaller the entire plate is covered in a lawn of bacteria You are taking a morning vitamin and notice that it contains Mg^2+ (magnesium). This would be an example of: A growth factor A trace element Blatant Contamination An important component of disulfide bridges A bacteria has a generation time of 12 hours What does this mean? Every 12 hours it reproduces Under ideal conditions it goes through one round of binary fission every 12 hours Every 12 hours it assesses whether it should reproduce, if the conditions are right it begins reproduction which takes 20 minutes to complete in 12 hours a single bacterium can form a colony You are analyzing a bacteria in the lab when it is in a planktonic form. Do you think it will express the exact same combination of proteins as it does when it is part of a biofilm? Yes, it\'s the same bacteria Yes, as long as it is in the log phase of the cell cycle, bacteria only change their gene expression as they change phases of their growth cycle No, bacteria express proteins based on their microenvironment which is often substantially different in biofilms No, bacteria don\'t express their own proteins in a biofilm they form an \'organ\' and express the genes that all bacteria in the biofilm share

Solution

29. B. Very, acute infections tend to be planktonic. This is when a bacterium is most susceptible to antibiotics

30. A. You have way fewer colnies than your labmate.

Mesophilic bacteria are the ones which grow at 37 degree centigrade. low temperature do not help the bacteria to grow better.

31. B. A trace element

Copper, zinc, magnesium and selenium are some of the very important trace elements essential for the functioning of various enzymes.

32.B. Under ideal conditions it goes through one round of binary fission every 12 hours.

Generation time is the time required for a bacteria to perform one round of binary fision. for every additional generation time, the number of bacteria doubles.