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CBSE Class 9 Answered

give reasons?
Asked by nivi95 | 18 Jun, 2009, 03:34: PM
answered-by-expert Expert Answer

1) An old worn out cell has to be completely destroyed and removed. Lysosomes act on the old and worn out cell components and help clear the debris in a cell. They contain powerful enzymes which can digest all damaged and worn out parts of the cell or the cell as a whole. Hence old and worn out  cells will be rich in lysosomes. In addition, the aged post-mitotic cells would not be able to sustain efficient turnover of wornout or damaged organelles.

2) Chromosomes.

 

Post each of the remaining queries separately as different questions.

Answered by | 19 Jun, 2009, 09:36: AM
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