Human Reproduction

Question 1

What is reproduction?

Answer 1

Reproduction is the process whereby new individuals (offspring) are made from their parents

Question 2

What is Gamete?

Answer 2

Gametes are sex cells (egg and sperm)

Question 3

What happens during fertilisation?

Answer 3

Fertilisation happens when the nucleus of a sperm cell fuses with the nucleus of an egg cell to form a zygote

Question 4

What is a zygote?

Answer 4

A zygote is a fertilised egg

Question 5

Explain what the menstrual cycle is

Answer 5

The menstrual cycle is the monthly series of changes a woman’s body goes through to prepare for the possibility of pregnancy. Ovulation and menstruation are part of this cycle.

(Cycle takes 28 days)

Question 6

What is ovulation?

Answer 6

Ovulation is the time during the menstrual cycle when an egg is released from the ovary into the fallopian tube.

Question 7

What is menstrual?

Answer 7

Menstruation is the process of blood and tissue that has built up in the uterus breaking down and leaving the body through the vagina

Question 8

What is the fertile period?

Answer 8

The fertile period occurs during the menstrual cycle. This is the time during the cycle when fertilisation can occur and the female can become pregnant

Question 9

Puberty in girls

Answer 9

• Development of sex organs (ovaries)
• Development of breasts
• Widening of the hips
• Growth of underarm and pubic hair

Question 10

Puberty in boys

Answer 10

• Development of sex organs (testes and penis)
• Growth spurt
• Broader shoulders
• Deeper voice
• Growth of body and facial hair

Question 11

What is testosterone?

Answer 11

Testosterone (produced in the testes) is hormone that controls male sexual characteristics