cell cycle Flashcards
what are the three main stages of cell cycle?
1) interphase
2) mitosis
3) cytokinesis
What 3 stages does interphase consist of?
1) G1
2) S - synthesis
3) G2
what happens in G1 of interphase?
cell begins to grow in size
what happens in synthesis of interphase?
DNA is replicated
what happens in G2 of interphase?
centrioles will make spindle fibers
what are the four stages of mitosis?
1) prophase
2) metaphase
3) anaphase
4) telophase
what is mitosis for?
division of the nucleus
What happens during cytokinesis?
division of the cytoplasm
what does the G1 checkpoint check for?
DNA damage
what does the G2 checkpoint check for?
cell size
DNA replication
what does the M checkpoint check?
chromosome spindle attachment
what is apoptosis?
programmed cell death
what is the method of apoptosis
1) enzymes shred DNA
2) cell membrane forms blebs
3) cell fully dismantles into apoptotic bodies
4) apoptotic bodies are cleared by phagocytes
