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TLS Online TPP Program

#Question id: 2213

Which of the following properties is (are) typical of uniport proteins?

#Unit 2. Cellular Organization

  1. the ability to “flip” within the membrane, releasing the transported molecule at the opposite surface

  2. a permanent open pore through the membrane      

  3. multiple transmembrane α-helical segments

  4. an ATPase activity for the direct coupling of ATP hydrolysis to transport

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TLS Online TPP Program

#Question id: 13215

#Unit 6. System Physiology – Plant

KCl solutions separated by a membrane in The K+ and Cl– ions will permeate the membrane independently as they diffuse down their respective gradients of electrochemical potential, In biological systems, membranes are usually more permeable to K+ than to Cl–. Therefore, K+ will diffuse out of the cell  faster than Cl–, causing
TLS Online TPP Program

#Question id: 13216

#Unit 6. System Physiology – Plant

Which statements is INCORRECT about this figure?
TLS Online TPP Program

#Question id: 13217

#Unit 6. System Physiology – Plant

Hypodermis or Exodermis that contain
TLS Online TPP Program

#Question id: 13218

#Unit 6. System Physiology – Plant

Water flows between cells through the plasmodesmata without crossing the plasma membrane by
TLS Online TPP Program

#Question id: 13219

#Unit 6. System Physiology – Plant

In the apoplast pathway, water moves exclusively
TLS Online TPP Program

#Question id: 13220

#Unit 6. System Physiology – Plant

The symplast consists of the entire network of cell cytoplasm interconnected by