7B Reproduction

Question 1

Offspring

Answer 1

The new organisms produced by reproduction.

Question 2

Sexual Reproduction

Answer 2

Reproduction that needs two parents to produce offspring.

Question 3

Gametes

Answer 3

Sex cells

Question 4

Gamete that males make

Answer 4

Sperm

Question 5

Gamete that females make

Answer 5

Egg

Question 6

Puberty

Answer 6

When males start to produce sperm cells and egg cells in female start to mature.

Question 7

Sexual Intercourse

Answer 7

The erect penis is inserted into the vagina.

Question 8

Implantation

Answer 8

If fertilisation occurs the cell starts to divide forming an embryo which will then sink into the uterus lining. The woman is now pregnant.

Question 8

Placenta

Answer 8

Allows oxygen, food and water to be passed from mother’s blood into embryo’s blood. Waste materials (like carbon dioxide) pass from embryo’s blood into mother’s blood.

Question 9

Umbilical cord

Answer 9

Carries the embryo’s blood to and from the placenta.

Question 10

Gestation period

Answer 10

The time from fertilisation until birth.

Question 11

Sex Hormones

Answer 11

Released by brain, tests & ovaries- start puberty.

Question 12

Changes to Boys During Puberty

Answer 12

Voice deepens, shoulders widen, hair grows, testes/ penis grow, sperm produced

Question 13

Changes to Girls During Puberty

Answer 13

Breasts develop, hair grows, hips widen, ovaries start to release eggs.

Question 14

Menstrual Cycle

Answer 14

Days 1-5: uterus lining lost from body (menstruation)
Days 6-14: egg cell starts to mature and is released around day 14 (ovulation)
Days 14+: egg cell swept towards uterus, if not fertilised cycle starts again.