I don’t really know that sorry
The cells of hematopoiesis that is responsible for the prodcution of red blood cells and platelets is MYELOID STEM CELLS; they are developed from HEMATOPOIETIC STEM CELLS in the red bone marrow. Myeloid stem cells give rise to other blood cells through the process of hematopoiesis.
Not all transport will cease. Active transport will cease, because it requires energy. However, passive transport requires no energy from the cell.
Substrate
The enzyme grabs on to the substrate at a special area called the active site. The combination is called the enzyme/substrate complex. Enzymes are very, very specific and don't just grab on to any molecule. The active site is a specially shaped area of the enzyme that fits around the substrate.