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3 years ago

Which of the following correctly identifies the types of cell division describe in rows x and y

Biology

1 answer:

Juliette [100K]3 years ago

6 0

Answer:

B. Row x describes meiosis and row y describes mitosis

Explanation:

Mitosis is the process in which a cell divides to yield two daughter cells with same number of chromosomes as the parent cell. The process takes place in the somatic cells or the body cells. For example, a cell with 14 chromosomes divides to produce two cells with 14 chromosomes.
Meiosis on the other hand is the process in which a cell divides into four daughter cells that have half the number of chromosomes as the parent cell. The process takes place in the germ line cells where gametes are produced. For example a cell undergoes meiotic division to produce four cells each with 7 chromosomes.

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Answer:

C IS THE ANWSER

Explanation:

COUNT BY 7'S

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3 years ago

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Step2247 [10]

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3 years ago

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3 years ago

Cells must use energy to move a substance against a concentration gradient i.e., from a compartment with a low concentration of

garik1379 [7]

Answer:

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.

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Ostrovityanka [42]

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