The cell cycle consists of two stages, interphase and mitosis (cell division) - Leaving Cert Biology - Question c - 2022
Question c
The cell cycle consists of two stages, interphase and mitosis (cell division).
(i) Explain the underlined term.
(ii) Describe the process of mitosis. You may use a... show full transcript
Worked Solution & Example Answer:The cell cycle consists of two stages, interphase and mitosis (cell division) - Leaving Cert Biology - Question c - 2022
Step 1
Explain the underlined term.
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Answer
Interphase is the resting period of the cell cycle when the cell is not actively dividing. During this time, the cell prepares for division by growing and replicating its DNA.
Step 2
Describe the process of mitosis.
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Answer
Mitosis is the process by which a cell divides to produce two identical daughter cells. The stages include:
Prophase: Chromosomes become visible as they condense, and the nuclear envelope begins to break down. Spindle fibers form.
Metaphase: Chromosomes line up along the equator of the cell and become attached to spindle fibers.
Anaphase: Chromatids are pulled apart to opposite ends of the cell.
Telophase: Nuclear membranes form around each set of chromosomes, releasing them and returning to a less condensed state. The cell then undergoes cytokinesis, dividing the cytoplasm to form two separate cells.
Step 3
Name another form of cell division that introduces variation to the daughter cells.
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Answer
Meiosis
Step 4
Name one cell in the human body produced by the form of cell division you named at part (c) (iii) above.
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Answer
Egg (in the female) or sperm (in the male)
Step 5
Name one organ in the human body in which the form of cell division you named at part (c) (iii) above occurs.
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Answer
Ovary or testis (does not have to match)
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