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TLS Online TPP Program

#Question id: 31426

What distinguishes the second lag phase from the first in a diauxic growth curve?

#XL - S Microbiology
  1. It occurs after the first carbon source is depleted, requiring enzyme synthesis for the second source
  2. It results from bacterial cell death due to toxin accumulation
  3. It signifies the completion of bacterial growth
  4. It occurs because bacteria stop dividing permanently 
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TLS Online TPP Program

#Question id: 2169

#XL - S Microbiology

In a laboratory activity, red-labeled glucose, blue-labeled water, and green-labeled ethanol are added to a solution placed over an artificial, pure phospholipid membrane.  Which colors will be observed on the other side of the membrane after 10 minutes?
TLS Online TPP Program

#Question id: 2170

#XL - S Microbiology

How does uniport transport compare with simple diffusion?
TLS Online TPP Program

#Question id: 2171

#XL - S Microbiology

Aquaporins are
TLS Online TPP Program

#Question id: 2172

#XL - S Microbiology

The osmotic potential of a hypotonic solution should cause an animal cell to _____, but with frog oocytes prevent this effect by _____.
TLS Online TPP Program

#Question id: 2173

#XL - S Microbiology

Which of the four classes of ATP-powered pumps share overall similarity: several subunits, the same general organization, and a similar function as H+ transporters?
TLS Online TPP Program

#Question id: 2174

#XL - S Microbiology

The major ATP-powered pump responsible for maintaining ion gradients across the plasma membrane of mammalian cells is: