GIVEN THE FOLLOWING INFORMATION. ANSWERS QUESTIONS 19-21 The phospholipid of the
ID: 92820 • Letter: G
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GIVEN THE FOLLOWING INFORMATION. ANSWERS QUESTIONS 19-21 The phospholipid of the cell membrane is not permeable to ions. There is more Ca2+ and Na+ outside the cell while there is more K+ inside the cell. If you open up a channel to Ca2+, Ca2+ will enter the cell and the charge in the cell will decrease Ca2+ will exit the cell and the charge in the cell will decrease Ca2+ will enter the cell and the charge in the cell will increase If you open up a channel to K+. K+ will enter the cell and the charge in the cell will decrease K+ will exit the cell and the charge in the cell will decrease K+ will enter the cell and the charge in the cell will increase If you open a channel to Na+, Na+ will enter the cell and the charge in the cell will decrease Na+ will exit the cell and the charge in the cell will decrease Na+ will enter the cell and the charge in the cell will increase Which observation would suggest that active transport, rather than passive diffusion, is responsible for moving a particular substance from the outside of a cell into a cell? a higher concentration of the substance outside the cell than inside the cell. a higher concentration of the substance inside the cell than outside the cell. a positive correlation between ATP breakdown and the amount of substance taken in. band c are both correct.Explanation / Answer
Here the concentration of calcium and sodium ions are high outside the cell and concentration of potassium ions is high inside the cell.
19) if the channel is open for calcium ions, the calcium ions will enter the cell and the charge in the cell will increase (c).
20) if the channel is open for potassium ions, the pottassium ions will exit the cell and the charge in the cell decrease(b).
21) if the channel is open for sodium ions, the sodium ions will enter the cell and the charge in the cell decrease(a).
22) In the active transport, the concentration of ions will be higher inside the cell than outside the cell. And the transport of ions from lower concentration to higher concentration uses energy by ATP hydrolysis. Sodium-potassium pump is major one regulating active transport. The answer is option-d ( both b and c are correct).
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