Sexual reproduction in humans — Paper 2 · IGCSE Sciences - Co-ordinated (Double) 0654

7 The diagram shows stages in the development of a fertilised zygote. Which stage becomes implanted in the wall of the uterus? A B C D

1 marks

Answer: C

This question in 0654/22 May/June 2017

6 The maternal blood leaving the placenta is different in composition from that arriving. What are those differences? carbon oxygen glucose dioxide A less more less B less more same C more less more D more less same

1 marks

Answer: A

This question in 0654/21 Oct/Nov 2017

6 What is meant by fertilisation? A combining of male and female nuclei B joining of male and female sex organs C movement of sperms through the uterus to an ovum D reproduction

1 marks

Answer: A

This question in 0654/23 Oct/Nov 2017

10 Kangaroos have 16 chromosomes in their skin cells. How many chromosomes are there in a kangaroo sperm cell? A 4 B 8 C 16 D 32

1 marks

Answer: B

This question in 0654/21 Oct/Nov 2018

11 Which sex chromosomes need to be present in a sperm cell to produce a male zygote? A X only B Y only C XX D XY

1 marks

Answer: B

This question in 0654/22 May/June 2019

10 During pregnancy, the placenta is used to exchange substances between the mother and the fetus. Which row is correct? substance exchanged direction A carbon dioxide mother to fetus B glucose mother to fetus C glucose fetus to mother D oxygen fetus to mother

1 marks

Answer: B

This question in 0654/21 Oct/Nov 2019

10 In human reproduction, which cells are haploid? gametes zygotes v v 0 Oo WwW > v x x v x x

1 marks

Answer: B

This question in 0654/21 Oct/Nov 2020

10 In human reproduction, which cells are haploid? gametes zygotes v v 00 WwW > v x x v x x

1 marks

Answer: B

This question in 0654/22 Oct/Nov 2020

10 In human reproduction, which cells are haploid? gametes zygotes v v 00 WwW > v x x v x x

1 marks

Answer: B

This question in 0654/23 Oct/Nov 2020

10 Which row about human gametes is correct? flagellum energy store shows gamete present present motility A female v v Jv B female Xx v x Cc male v v x D male x x v key /=yes X =no

1 marks

Answer: B

This question in 0654/22 May/June 2021

2 Which row is correct for a human sperm cell? flagellum nucleus presence of enzymes A no diploid yes B no haploid no C yes diploid no D yes haploid yes

1 marks

Answer: D

This question in 0654/23 May/June 2021

10 Which row describes the exchange of substances between a mother and her fetus in mammals? substances moving from substances moving from the mother to fetus the fetus to mother A glucose and carbon dioxide urea and oxygen B glucose and oxygen urea and carbon dioxide C urea and carbon dioxide glucose and oxygen D urea and oxygen glucose and carbon dioxide

1 marks

Answer: B

This question in 0654/22 Oct/Nov 2021

10 Which statements correctly describe the human male gamete? 1 contains enzymes 2 food stores present 3 flagellum present 4 surrounded by a jelly coating A 1 and 2 B 1 and 3 C 2 and 3 D 3 and 4

1 marks

Answer: B

This question in 0654/22 Feb/March 2022

10 What is a function of the placenta? A It acts as a barrier to toxins. B It cushions the fetus from bumps. C It maintains a constant temperature. D It exchanges blood between the fetus and the mother.

1 marks

Answer: A

This question in 0654/21 Oct/Nov 2022

11 The diagram shows eggs and sperm containing sex chromosomes. 1 2 3 4 egg X X X X Y Y 5 6 7 8 sperm X Y X X X Y Which row gives the correct combination of sex chromosomes for a male and female offspring? male female offspring offspring A 1 and 8 3 and 7 B 2 and 6 2 and 5 C 3 and 8 1 and 7 D 4 and 6 2 and 5

1 marks

Answer: B

This question in 0654/21 May/June 2023

10 Which part of the male reproductive system is correctly matched to its function? part function A prostate gland transfers sperm to the urethra B scrotum holds the testes outside of body C testes secrete fluids for sperm to swim in D urethra transfers semen to ovary

1 marks

Answer: B

This question in 0654/21 Oct/Nov 2023

10 The diagram shows human gamete formation and fertilisation. male gametes male made in V gametes fertilisation occurs in Z female gametes female made in W gametes Which row is correct? structure V structure W structure Z A scrotum uterus oviduct B testes oviduct ovary C testes ovary oviduct D scrotum oviduct uterus

1 marks

Answer: C

This question in 0654/22 Oct/Nov 2023

10 The body cells of tigers have 38 chromosomes. Which row shows the numbers of chromosomes involved during sexual reproduction in tigers? sperm offspring egg cell zygote cell body cell A 38 38 19 38 B 19 19 38 76 C 19 19 38 38 D 38 38 76 76

1 marks

Answer: C

This question in 0654/22 Feb/March 2024

10 The diagram shows the human male reproductive system. X Y Z Which row identifies structures X, Y and Z? sperm prostate urethra duct gland A X Y Z B X Z Y C Z X Y D Z Y X

1 marks

Answer: D

This question in 0654/22 May/June 2024

10 Which statements about human egg and sperm cells are correct? 1 The egg cell’s membrane changes to prevent other sperm from entering it after fertilisation. 2 The egg and sperm cells have a diploid nucleus. 3 The sperm’s enzymes allow it to penetrate the egg to fertilise it. 4 The process of fertilisation occurs in the ovary. A 1 and 3 B 1 and 4 C 2 and 3 D 2 and 4

1 marks

Answer: A

This question in 0654/23 May/June 2024

10 What processes occur in the oviduct? A fertilisation and then the zygote undergoes meiosis B fertilisation and then the zygote undergoes mitosis C zygote undergoes meiosis and then fertilisation occurs D zygote undergoes mitosis and then fertilisation occurs

1 marks

Answer: B

This question in 0654/22 Oct/Nov 2024

10 The diagram shows the human female reproductive system. Which label shows the oviduct? A B C D

1 marks

Answer: A

This question in 0654/22 Feb/March 2025

8 The diagram shows a sperm cell. Which structure contains enzymes to digest the outer jelly layer of an egg cell? D A C B

1 marks

Answer: A

This question in 0654/23 May/June 2025