TLS Online TPP Program

#Question id: 3041


Which statement about gram-negative bacteria is correct?

#Section 2: General Biology
  1.  Penicillins are the best antibiotics to use against them.

  2. They often possess an outer membrane containing toxic lipopolysaccharides.

  3. Their chromosomes are composed of DNA tightly wrapped around large amounts of histone proteins.

  4. Their cell walls are primarily composed of peptidoglycan.

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TLS Online TPP Program

#Question id: 19533

#Section 4: Fundamentals of Biological Engineering

Which of the following does the concept of material balance based upon?

TLS Online TPP Program

#Question id: 19534

#Section 4: Fundamentals of Biological Engineering

The equation of material balance, (Final condition + Sum of outputs) is equal to which of the following?

TLS Online TPP Program

#Question id: 19535

#Section 4: Fundamentals of Biological Engineering

A container has 10 grams of water 5 grams of water is added and 2 grams of water is taken out, what is the final amount of water?

TLS Online TPP Program

#Question id: 19536

#Section 4: Fundamentals of Biological Engineering

Which of the following type of yield is referred to as “Maximum possible yields”?

TLS Online TPP Program

#Question id: 19537

#Section 4: Fundamentals of Biological Engineering

The equation for aerobic production of acetic acid from ethanol is ____________
C2H5OH(ethanol) + O2(acetic acid) → CH3CO2H + H2O
Acetobacter aceti bacteria are added to vigorously-aerated medium containing 10 g l-1 ethanol. After some time, the ethanol concentration is 2 g l-1 and 7.5 g l-1 acetic acid is produced. Calculate the Observed yield.

TLS Online TPP Program

#Question id: 19538

#Section 4: Fundamentals of Biological Engineering

The equation for aerobic production of acetic acid from ethanol is ____________
C2H5OH(ethanol) + O2(acetic acid) → CH3CO2H + H2O
Acetobacter aceti bacteria are added to vigorously-aerated medium containing 10 g l-1 ethanol. After some time, the ethanol concentration is 2 g l-1 and 7.5 g l-1  acetic acid is produced. Calculate the theoretical yield.