What happens to the DNA when a cell divides?
You said the DNA splits in half so two cells can share it. The DNA is copied first, and both new cells end up with a complete set.
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1 lesson for “Cell division (mitosis)”
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Is breathing the same as cellular respiration?
You said respiration happens in the lungs. The lungs move air in and out; the useful energy release happens inside every one of your cells.
Try this lessonWhich organelle makes the cell's energy?
You said the nucleus makes the cell's energy. The instructions live in the nucleus, but the energy-making has a different address.
Try this lessonWhich way does water move through a cell membrane?
You said water rushes into the cell because the cell needs it. Water does not choose sides; it simply spreads toward the saltier solution.
Try this lessonWhich move comes first?
Isla solved 3x + 4 = 19 by writing 3x = 23, giving x = 23/3. She never removed the +4 before dividing.
Try this lessonWhy do I flip the second fraction?
Amara shared 1/2 of a sandwich into 2/3-sized portions and wrote 1/3. She multiplied by 2/3 instead of flipping it first.
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