⟩ What is the function CD4 antigen?
It acts as a co receptor for MHC class II restricted T cell activation; receptor for HIV.
It acts as a co receptor for MHC class II restricted T cell activation; receptor for HIV.
Without saturation of transport proteins and under same concentration gradient how can the speed of simple diffusion be compared to the speed of facilitated diffusion?
What is mass transportation across the cell membrane?
Which are the molecules that make possible active transport through membranes?
What are the two main types of endocytosis?
What is the wall resistance of plant cells? Does this resistance facilitate or make it difficult the entrance of water in the cell?
What is meant by suction force of the plant cell? Does the suction force facilitate or make difficult the entrance of water in the cell?
What does the formula DPD = SF – TP mean?
What is the formula of the DPD for withered (shrank) plant cells? How is that situation possible?
What are the values of DPD for plant cells under hypertonic, isotonic and hypotonic media?
What do facilitated diffusion and active transport have in common? What are the differences between them?