Pages in this set

Page 1

Preview of page 1
Human reproduct ion
Structure of sperm and ovum
-Sperm: tail for mobility + streamlined,
head of sperm has enzyme to dissolve
way into egg, mitochondria for
-Ovum: rich energy source in yolk, jelly
layer for protection which hardens when
egg fertilised, very large to provide
enough nutrients

Female reproductive…

Page 2

Preview of page 2
Changes in girls Changes in boys

Menstrual cycle begins egg released each month Sperm production starts

Growth and development of sexual organs

Growth of armpit + pubic hair Growth of armpit + pubic + chest + facial

Increase in body mass

Development of breasts and rounded shape to…


No comments have yet been made

Similar Biology resources:

See all Biology resources »