Show the list of substances synthesised during G₁ and G₂ phases of cell cycle with the help of table.
WBBSE
Class X
Life Science
02 (a) Cell Division and Cell Cycle
02 Mark
2025
During interphase, G₁ and G₂ are growth and preparation phases. Their synthetic activities can be tabulated as:
| Phase | Main substances synthesised |
|---|---|
| G₁ phase | Proteins, various enzymes, RNA, new cell organelles like mitochondria and ribosomes; overall protoplasm and cytoplasmic materials increase for cell growth. |
| G₂ phase | Proteins, especially for spindle fibre formation; additional RNA and enzymes; other materials needed to prepare the cell for mitosis, ensuring rapid cell growth and readiness for nuclear division. |
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