Life Cycle Of The Cell

Question 1

Cell cycle

Answer 1

Processes associated with cell division to replace aging, damaged or dead cells

Question 2

What are the 2 phases?

Answer 2

Interphase - time between cell divisions

Mitotic phase - cell division into two cells (daughters)

Question 3

Interphase

Answer 3

Maintenance (resting) phase
Majority of the life cycle
Normal metabolic activities
-cell growth
-cells replicate centrioles for future divisions
-“synthesis” phase: DNA replicated in preparation for cell division
-organelles and enzymes

Question 4

Mitotic (M) phase

Answer 4

Produced two daughter cells that are genetically identical to original cell
Mitosis: division of nucleus
Cytokinesis: division of the cytoplasm

Question 5

Aging

Answer 5

Normal and continuous process
Indicated by change in organelles and/or chromatin
Reduced metabolic functions = decreased ability to maintain homeostasis
Necrosis- damage/trauma
Apoptosis- programmed cell death