Flashcards on the whole of Biology A-Level OCR A divided by topic.
| Front | What are cofactors? |
| Back | Non protein compounds required for enzyme activity.coenzymesinorganic cofactorsprosthetic groups |
| Front | Describe the function of the nucleus. |
| Back | Contains DNA coiled around chromatin into chromosomes.Controls cellular processes: gene expression determines specialisation and site of mRNA transcription, mitosis, semiconservative replication. |
| Front | State the magnification and resolution of a SEM |
| Back | Magnification: x500 000Resolution: 3 - 10nm |