Which of the following is a biological use of programmed cell death?

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Multiple Choice

Which of the following is a biological use of programmed cell death?

Programmed cell death is used to sculpt tissues during development. In forming the hand, cells between the developing fingers undergo apoptosis, removing tissue so the digits separate rather than stay fused. This controlled cell elimination shapes the final form of the limb. Photosynthesis, protein synthesis, and energy storage are metabolic or biosynthetic processes, not uses of programmed cell death. Photosynthesis captures light energy in plants, protein synthesis builds new proteins, and energy storage reserves energy in molecules like glycogen or fat. They don’t rely on a deliberate, regulated cell suicide to achieve their outcomes. So the hand development example shows how programmed cell death helps create normal anatomy by removing unwanted cells between digits.

Programmed cell death is used to sculpt tissues during development. In forming the hand, cells between the developing fingers undergo apoptosis, removing tissue so the digits separate rather than stay fused. This controlled cell elimination shapes the final form of the limb.

Photosynthesis, protein synthesis, and energy storage are metabolic or biosynthetic processes, not uses of programmed cell death. Photosynthesis captures light energy in plants, protein synthesis builds new proteins, and energy storage reserves energy in molecules like glycogen or fat. They don’t rely on a deliberate, regulated cell suicide to achieve their outcomes.

So the hand development example shows how programmed cell death helps create normal anatomy by removing unwanted cells between digits.

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