Microbial Metabolism - Transporting Nutrients into the Cell

9 important questions on Microbial Metabolism - Transporting Nutrients into the Cell

What is active transport?

The process by which cells accumulate solutes againt the concentration gradient.

What are the three major classes of transport systems in prokaryotes?

  • Simple transport
  • Group translocation
  • ABC transporting systems

Of which three componets consists the ABC transport system?

  1. Substrate-binding protein
  2. Transmembrane transporter
  3. ATP-hydrolizing protein
  • Higher grades + faster learning
  • Never study anything twice
  • 100% sure, 100% understanding
Discover Study Smart

What is the name of the reaction where a solute and a proton are cotransported in one direction?

Symport reaction

What is the name of the reaction where a solute and a proton are transported in opposite directions?

Antiport reaction

In which ways does group translocation differ from a simple transport reaction?

  1. The transported substance is chemically modified during the transport process.
  2. An energy-rich organic compound drives the transport event.

What does the phosphotransferase system do?

Transport any given sugar

Which protein catalyzes the transport of substrates in gram-negative bacteria?

Periplasmic binding protein

What is the functional equivalent of periplasmic binding proteins in gram-positive bacteria?

Substrate-binding proteins

The question on the page originate from the summary of the following study material:

  • A unique study and practice tool
  • Never study anything twice again
  • Get the grades you hope for
  • 100% sure, 100% understanding
Remember faster, study better. Scientifically proven.
Trustpilot Logo