Answer: Option C) ribosomes
Explanation:
Ribosomes are small round bodies attached to the endoplasmic reticulum (rough endoplasmic reticulum) in the cytoplasm of cells. They serves as site for protein synthesis due to the presence of ribosomal RNA, rRNA in them.
Thus, cells that are in active protein
synthesis are filled with ribosomes.
The right answer are all the three of them (1, 2 and 3).
Let's compare between a normal cell culture and a cancer cell culture:
- Normal or defined cultures: the cells only multiply during a limited number of degenerations (30 to 50 subcultures) then die: their life and their death is programmed. We then observe a decrease in their rate of proliferation, phase of senescence.
- Continuous culture or transformed or immortal lineages. The multiplication speed does not decrease (reproduction without limits, non-stop), which allows an indefinite number of subculture. The cells constituting these cultures lose the contact inhibition and grow in clusters or multilayer (multiple layers).
So that when people go to hunt the next year the species will be repopulated.