Year 9 Human reproduction

What are chromosomes made of?

• Cells

• Protein

• String

• DNA

What cell decides the sex of the offspring?

• Sperm cells

• Brain cells

• Egg cells

• Gametes

What organ produces egg cells?

• Lungs

• Ovaries

• Testes

• Sperm

What organ produces sperm?

• Brain

• Testes

• Ovaries

• Lungs

What is the name of the organ where the embryo develops?

• Lung

• Stomach

• Uterus

• Brain

What is one way sperm and eggs are similar?

• They both swim

• They have extra mitochondria

• They have the double the amount of DNA

• They have half the amount of DNA

What ways are sperm and eggs are different?

• Sperm dont have mitochondria

• Sperm have flagella

• Sperm is much smaller than egg

• All of the above

What is one product thar passes from mother to baby through the placenta

• Lung cells

• nutrients

• Oxygen

• Red blood cells

What is one product that passes from baby to mother through the placenta

• Food

• Carbon dioxide

• Red blood cells

• Oxygen

Name one chemical that a pregnant person can ingest that can harm a fetus

• Alcohol

• Chicken

• nicotine

• Drugs