TLS Online TPP Program

#Question id: 37874


In a turbidostat, the culture is maintained at:

#Plant Biotechnology
  1. A constant growth-limiting nutrient concentration
  2. A preselected turbidity or optical density
  3. Constant temperature only
  4. A fixed cell number regardless of growth
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TLS Online TPP Program

#Question id: 2072

#Zoology

Which of the following structures would decrease the electrochemical gradient across a membrane?

TLS Online TPP Program

#Question id: 2073

#Biochemistry

The phosphate transport system in bacteria imports phosphate into the cell even when the concentration of phosphate outside the cell is much lower than the cytoplasmic phosphate concentration. Phosphate import depends on a pH gradient across the membrane—more acidic outside the cell than inside the cell. In this bacterial cell, phosphate transport is an example of:

TLS Online TPP Program

#Question id: 2073

#Zoology

The phosphate transport system in bacteria imports phosphate into the cell even when the concentration of phosphate outside the cell is much lower than the cytoplasmic phosphate concentration. Phosphate import depends on a pH gradient across the membrane—more acidic outside the cell than inside the cell. In this bacterial cell, phosphate transport is an example of:

TLS Online TPP Program

#Question id: 2074

#Biochemistry

In some cells, there are many ion electrochemical gradients across the plasma membrane even though there are usually only one or two proton pumps present in the membrane. The gradients of the other ions are most likely accounted for by:

TLS Online TPP Program

#Question id: 2074

#Zoology

In some cells, there are many ion electrochemical gradients across the plasma membrane even though there are usually only one or two proton pumps present in the membrane. The gradients of the other ions are most likely accounted for by:

TLS Online TPP Program

#Question id: 2075

#Biochemistry

The force driving simple diffusion is: