Describe the cell cycle
The process of cell division is called the cell cycle. G1 phase - Cell grows in size and cellular contents (e.g. organelles) duplicate so that the new cells will have enough to function. S phase - The chromosomes in the nucleus are duplicated. G2 phase - Cell continues to grow and prepares for mitosis. Mitosis - The duplicated chromosomes are separated and pulled to opposite poles of the cell and the nucleus divides. Then the cyctoplasm and cell membrane divide, forming identical cells.
SP
Related Biology GCSE answers
All answers ▸How does the reflex arc work without going to the brain?
Most cases of scarlet fever occur in children. Adults have usually developed immunity to a toxin that the Streptococcus bacteria produce during infection. Explain how an adult develops immunity to the toxin.
Explain the process of inhalation
Describe the key features of an exchange surface