Cell Growth And Cycle

Question 1

What happens during cell growth?

Answer 1

A cell must get bigger
New cell parts must be made
Chromosomes must be copied
Cells divide

Question 2

What are the 3 main stages of the cell cycle?

Answer 2

Interphase (G1, S, G2)
Nuclear division
Cytokinesis

Question 3

Why do some multicellular organism not divide?

Answer 3

Some cells don’t divide at all - nerve cells

Some cells will stop dividing - when we reach adulthood

Question 4

Is there a set start and end?

Answer 4

No

BUT from your single fertilised egg cell there are a series of steps that will occur

Question 5

Steps of the cell cycle?

Answer 5

.growth of the cell
.synthesis of DNA polymerase
.DNA replication
.replication of othe organelle/prepare the cell for cell division 
.mitosis (nuclear division)
.division of the cytoplasm

Question 6

What does synthesis of the DNA polymerase ensure?

Answer 6

That the cell has made the correct organelle to replicate and produce 2 functional cells

Question 7

What does DNA replication ensure?

Answer 7

That the cell has the correct amount of DNA

Question 8

What is the result of uncontrolled cell division

Answer 8

Most die or are destroyed

However some may continue to divide and form tumors