Cells must use energy to move a substance against a concentration gradient i. e., from a compartment with a low concentration of the substance to a compartment with a higher concentration). Which of the following processes would require a cell to expend energy? Choose all of the correct answers a. Transport of sodium ions OUT OF cells b. Transport of sodium ions INTO cells c. Transport of potassium ions OUT OF cells d. Transport of potassium ions INTO cells e. Transport of calcium ions OUT OF cells f. Transport of calcium ions INTO the cytoplasm of a cell from the ECF g. Transport of calcium ions OUT OF the cytoplasm of a cell and INTO an organelle that has a high concentration of calcium ions. h. Transport of calcium ions OUT OF an organelle that has a high concentration of calcium ions and INTO the cytoplasm of a cell.

Question

Andy

Biology

5 March, 10:36

Cells must use energy to move a substance against a concentration gradient i. e., from a compartment with a low concentration of the substance to a compartment with a higher concentration). Which of the following processes would require a cell to expend energy? Choose all of the correct answers a. Transport of sodium ions OUT OF cells b. Transport of sodium ions INTO cells c. Transport of potassium ions OUT OF cells d. Transport of potassium ions INTO cells e. Transport of calcium ions OUT OF cells f. Transport of calcium ions INTO the cytoplasm of a cell from the ECF g. Transport of calcium ions OUT OF the cytoplasm of a cell and INTO an organelle that has a high concentration of calcium ions. h. Transport of calcium ions OUT OF an organelle that has a high concentration of calcium ions and INTO the cytoplasm of a cell.

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Answers (1)

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Jasper Barrett · Answer 1

Transport of sodium ions out of the cell

Transport of potassium into the cells

Transport of calcium ions out of cell

Transport of calcium ions OUT OF the cytoplasm of a cell and INTO an organelle that has a high concentration of calcium ions.

Explanation:

In general the concentration of sodium ion is higher outside the cell in the extracellular fluid and the concentration of potassium ion is higher inside the cell.

During an active transport, a cell uses energy to move molecules against the gradient as a part of primary active transport. In the secondary active transport, the molecules move as per the electrochemical gradient established by the primary active transport.

In primary active transport, sodium ion moves out of the cell and potassium ion moves into the cell through the assistance of sodium potassium pump. In order to maintain the stability, calcium ion from the sarcoplasmic reticulum is pumped out of the cell

Hence, the correct answers are

Transport of sodium ions out of the cell

Transport of potassium into the cells

Transport of calcium ions out of cell

Transport of calcium ions OUT OF the cytoplasm of a cell and INTO an organelle that has a high concentration of calcium ions.