Cells

Question 1

Why are cells needed?

Answer 1

Asexual reproduction
Repair
Growth
Differentiation and specialised cells

Question 2

What are body cells called

Answer 2

DIPLOID

Question 3

How many chromosomes are in each human cell?

Answer 3

46 - 23 from mum and 23 from dad

Question 4

What is the first stage of cell division?

Answer 4

Replication of DNA to form 2 copies of each chromosome and synthesis of new sub-cellular structures

Question 5

What is stage 2 of cell division?

Answer 5

Mitosis (nuclear division)

Question 6

What is stage 3 of cell division?

Answer 6

The cell divides in 2

Question 7

LOOK IN BOOK FOR CELL DIVISION DIAGRAM AND DESCRIPTION

Answer 7

LOOK IN BOOK FOR CELL DIVISION DIAGRAM AND DESCRIPTION

Question 8

What are chromosomes?

Answer 8

coiled lengths of DNA controlling different development of characteristics

Question 9

what is a stem cell?

Answer 9

A cell which has no specialisation and can differentiate into any type of cell