Please help me with 3,4, 5, and 25. Thank you so much uporL 3. e transport? mM i
ID: 277846 • Letter: P
Question
Please help me with 3,4, 5, and 25. Thank you so much
uporL 3. e transport? mM inside the cell. What is the most likely consequence for ase of glucose transport into the cell hrough the sodium-glucose transporter aseoutransport into the cell hrough the sodium-glucose transporter imse of NatIK+ ATPase increases to pump sodium in, and glucose transport ase of Na-/K+ ATPase increases to pump sodium in, and glucose transport You create an artificial cell is 15 mM and 150 glucose transport? environment the ce al cellular environment where the sodium concentration outside the A. increases. decreases remains normal. increases. B. T TPas 4. In order to prevent hydronium (H,0") ions from transport across aquaporins, which amino acid is situated in the channel to repel them? A. Arginine B. Aspartate C. Glutamate D. Glutamine If a monovalent cation is being imported into a cell in the absence of a concentration gradient (i.e., the concentration for the transported cation is equal on both sides of the membrane), what could you predict about AGt? Assume the transmembrane potential is 50mV (inside negative). 5. A. The value of AG will have a positive sign. B. The value of AG, will have a negative sign. C. The value of AG, will likely be close to zero. It is impossible to predict anything about the value of AG
Explanation / Answer
3. Cells wants to maintain lower na+ concentration and high k+ concentration than is found in surrounding.this imbalance is established and maintained by a active transport system in plasma membrane.when noncystosolic side Na is increased then through downhill movement na+ enter into cytosol side by release electrochemical gradient energy and by using this na+ - glucose symporter shows uphill movement so the correct answer will be B.
4. Aquaporine is the example of non ion channel mediated facilitated diffusion in which no ions can pass through water channel ,it is a multipass transport membrane protein ,homotetramer ,their conserved sequence is asparagine - proline-alanine for selectivity of channel so correct option is A.