U2) Co-transport 3.0 / 5 based on 1 rating ? BiologyCellular processesA2/A-levelAQA Created by: lieselb12Created on: 05-05-20 11:05 What is co-transport? " molecule/ions transported in the same direction- 1 down con grad + 1 against con grad (indirect active transport) 1 of 8 What is the 5 part process? 1- Na+/K+ pump actively transports Na+ from the epitelial cells into the bloodstream 2 of 8 2- Lowers Na+ ions concentration in the cell 3 of 8 3- Co-transport of of Na+ down con grad + glucose against con grad 4 of 8 4- Concentration of glucose is raised in the epithelial cell 5 of 8 5- Glucose uses facilitated diffusion ( carrier protein ) to enter bloodstream 6 of 8 What inhibits it? Respiratory inhibitor 7 of 8 Why? ATP isn't produced so ATP hydrolysis won't occur so Na+ won't be actively transported + no con gradient for Na+ + glucose is made 8 of 8
The epithelial cells that line the small intestine are adapted for the absorption of glucose. Explain how. 0.0 / 5
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