Question

1.Observe the diagram showing cell cycle
a) Identity and label the stages of cell division
b) What would happen if DNA synthesis does not take place?
c) What causes cell growth​

Answer 1

c) reason for cell growth

reason for cell growth in G1 phase

• continuous synthesis of nucleotides, ATP, proteins and amino acids (these substances are further required in S phase)
• most of the organelles duplicate during this phase

reason for cell growth in G2 phase

• tubulin protein synthesis takes place during this phase
• DNA synthesis stops but cell synthesises RNA, protein and etc. for the next phase