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Topic 1.1 Cells
Prokaryotic & Eukaryotic Cells
| Question | Answer |
|---|---|
| Compare prokaryotic and eukaryotic cells. | Both have genetic material; cell membrane; ribosomes Prokaryotic cells have 70S ribosomes, eukaryotic have 80S Prokaryotic cells do no have a nucleus, eukaryotic do Prokaryotic do not have membrane bound organelles e.g. mitochondria |
| State the properties of stem cells | Are undifferentiated cells Have the ability to differentiate into specialised cells Are self renewing |
| Distinguish between pluripotent and totipotent | Totipotent stem cells have the capacity to differentiate into all cells including extra embryonic whilst pluripotent can differentiate into all cells excluding extraembryonic E.g. totipotent cells is the zygote; pluripotent is embryonic |