to release somatostatin which turns off the production of gastric secretions 15)
ID: 3519458 • Letter: T
Question
to release somatostatin which turns off the production of gastric secretions 15) What kind of cell is shown in the diagram below? Parietal cell co cr cr cr For the next few questions, study the image above and select from the answer choices below a) b) Facilitated diffusion Primary active transport Secondary active transport tua ) Cotransport e) Symport n ab) Antiport 16) The transport of hydrogen ions on the apical membrane is best described as if you focus on the energy requirements of that transport. 17) Chloride is moving through the apical membrane by this process 18) The membrane transporter on the basolateral membrane is best described asif you focus on the number of substrates moving through that transporter and the direction of their movement.Explanation / Answer
15. Your answer is right. It is parietal cell [ Parietal cell secretes HCL into the gastric lumen and the diagram is clearly showing the cell is secreting HCL ].
16. Primary Active transport [ here the energy is being expended for the primary transport of hydrogen ions not from creating concentration gradient to transport another molecule. Here transport of H ions creating increased k ion concentration ion inside the cell and thereby k+ going out passively. So for K+ the process is secondary active transport but not for H+]
17.Facilitated diffusion [ here cl ion is diffusing passively across the concentration gradient. This process is facilitated by a channel protein shown in the diagram]
18.Antiport [ Here HCO-3 and Cl- is moving in opposite direction via a pump. This type of cotransport is called antiport.]
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