Unit 2: Reproduction From Achieve Flashcards
Define a gamete, locating where they are produced in animals
A gamete is a sex cell and is involved in reproduction.
Gametes are HAPLOID, meaning they contain only half of the genetic information of diploid cells.
In humans - an egg and sperm cell contain 23 chromosomes (1 set).
The female gametes are eggs and are produced in the ovaries.
The male gamete is sperm and is produced in the testes.
Label the key features of animal gametes
The food store provides food for the growing embryo.
The tail enables the sperm to swim to the egg.
Describe and locate where gametes are produced in plants
The female gametes are eggs/ovules and are produced in the ovary.
The male gamete is pollen and is produced in the anther.
Describe the process of fertilisation
Fertilisation is when the nuclei of 2 haploid gametes fuse together to form a diploid zygote, which divides to form an embryo.
