Vocabulary list

• Diffusion is the movement of a substance from an area of high concentration to an area of low concentration.
• The ovum is the female gamete in humans.
• Gametes are the sex cells
• In flowering plants the female gamete is the ovum and the male gamete is the pollen.
• Gestation is the time between fertilisation and birth, also known as pregnancy.
• Hormones are chemical messengers that that travel in the bloodstream.
• Menstruation is the approx. monthly blood that flows from the uterus
• Oestrogen is a female sex hormone made by the ovaries.
• Puberty is the period between childhood and adulthood, during which a growth spurt occurs, and secondary sexual characteristics appear.
• Sperm is the male gamete in humans
• Testes are part of the male reproductive system as it is where the sperm are made.
• Testosterone is a sex hormone produced by the testes that encourages the development of male sexual characteristics.