Unit 2 - Key Area 3 - Reproduction

Question 1

What is sexual reproduction?

Answer 1

Sexual reproduction is the process by which members of a species produce offspring through the production and fusion of gametes (sex cells)

Question 2

How are gametes formed?

Answer 2

Each human body cell contains 46 chromosomes arranged as 2 sets (diploid). New body cells are made by the process of mitosis.
A human sex cell contains 23 chromosomes, 1 set of chromosomes (haploid). sex cells are also called gametes.
New gametes are made in the sex organs.

Question 3

Describe the male reproductive system

Answer 3

Sperm are produced in the testis

Question 4

Describe the female reproductive system

Answer 4

Eggs are produced in the ovaries

Question 5

Describe the sexual reproduction system in flowering plants

Answer 5

Pollen is produced in the anthers

Ovules are produced in the ovary

Question 6

What is fertilisation

Answer 6

Fertilisation is the fusion of the nuclei of 2 haploid gametes to produce a diploid zygote, which divides to form an embryo