B15.4· 67 questions · 67 marks · 80 min · 2005–2025· Multiple choice
Every Cambridge IGCSE Sciences - Co-ordinated (Double) Paper 1 question on sexual reproduction in humans, laid out as 20 A4 pages with the mark scheme below. Nothing is left out. Free to read, no account.


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20 / 20Answers below. Sit the paper first if you are practising.
Pastlit
Sciences - Co-ordinated (Double) 0654 · Sexual reproduction in humans — Paper 1
IGCSE · topical answer key — answer key (teacher use)
Question
Answer
Marks
Pastlit
Sciences - Co-ordinated (Double) 0654 · Sexual reproduction in humans — Paper 1
IGCSE · topical answer key — answer key (teacher use)
Question
Answer
Marks
| Question | Answer | Marks | From |
|---|---|---|---|
| 1 | D | 1 | 0654/11 May/June 2005 |
| 2 | D | 1 | 0654/11 Oct/Nov 2006 |
| 3 | C | 1 | 0654/11 May/June 2007 |
| 4 | B | 1 | 0654/11 Oct/Nov 2007 |
| 5 | C | 1 | 0654/11 May/June 2008 |
| 6 | B | 1 | 0654/11 Oct/Nov 2008 |
| 7 | D | 1 | 0654/11 May/June 2009 |
| 8 | D | 1 | 0654/11 Oct/Nov 2009 |
| 9 | D | 1 | 0654/11 May/June 2010 |
| 10 | D | 1 | 0654/12 May/June 2010 |
| 11 | A | 1 | 0654/11 Oct/Nov 2010 |
| 12 | A | 1 | 0654/12 Oct/Nov 2010 |
| 13 | A | 1 | 0654/13 Oct/Nov 2010 |
| 14 | B | 1 | 0654/11 May/June 2011 |
| 15 | B | 1 | 0654/12 May/June 2011 |
| 16 | B | 1 | 0654/13 May/June 2011 |
| 17 | C | 1 | 0654/11 Oct/Nov 2011 |
| 18 | C | 1 | 0654/12 Oct/Nov 2011 |
| 19 | C | 1 | 0654/13 Oct/Nov 2011 |
| 20 | C | 1 | 0654/11 May/June 2012 |
| 21 | A | 1 | 0654/12 May/June 2012 |
| 22 | A | 1 | 0654/13 May/June 2012 |
| 23 | A | 1 | 0654/11 May/June 2013 |
| 24 | C | 1 | 0654/12 May/June 2013 |
| 25 | A | 1 | 0654/13 May/June 2013 |
| 26 | D | 1 | 0654/11 May/June 2014 |
| 27 | C | 1 | 0654/12 May/June 2014 |
| 28 | D | 1 | 0654/13 May/June 2014 |
| 29 | B | 1 | 0654/11 Oct/Nov 2014 |
| 30 | A | 1 | 0654/11 Oct/Nov 2014 |
| 31 | A | 1 | 0654/12 Oct/Nov 2014 |
| 32 | B | 1 | 0654/12 Oct/Nov 2014 |
| 33 | B | 1 | 0654/13 Oct/Nov 2014 |
| 34 | B | 1 | 0654/13 Oct/Nov 2014 |
| 35 | B | 1 | 0654/13 Oct/Nov 2014 |
| 36 | D | 1 | 0654/11 May/June 2015 |
| 37 | A | 1 | 0654/12 May/June 2015 |
| 38 | A | 1 | 0654/11 Oct/Nov 2015 |
| 39 | B | 1 | 0654/12 Oct/Nov 2015 |
| 40 | B | 1 | 0654/13 Oct/Nov 2015 |
| 41 | C | 1 | 0654/13 May/June 2016 |
| 42 | D | 1 | 0654/11 Oct/Nov 2016 |
| 43 | D | 1 | 0654/12 Oct/Nov 2016 |
| 44 | B | 1 | 0654/13 Oct/Nov 2016 |
| 45 | A | 1 | 0654/11 Oct/Nov 2017 |
| 46 | A | 1 | 0654/13 Oct/Nov 2017 |
| 47 | C | 1 | 0654/11 Oct/Nov 2018 |
| 48 | B | 1 | 0654/12 May/June 2019 |
| 49 | B | 1 | 0654/13 May/June 2019 |
| 50 | B | 1 | 0654/11 Oct/Nov 2019 |
| 51 | B | 1 | 0654/12 Oct/Nov 2019 |
| 52 | D | 1 | 0654/11 Oct/Nov 2020 |
| 53 | D | 1 | 0654/13 Oct/Nov 2020 |
| 54 | A | 1 | 0654/12 Feb/March 2021 |
| 55 | A | 1 | 0654/12 Feb/March 2021 |
| 56 | A | 1 | 0654/11 May/June 2021 |
| 57 | A | 1 | 0654/12 May/June 2021 |
| 58 | A | 1 | 0654/13 May/June 2021 |
| 59 | B | 1 | 0654/12 Oct/Nov 2021 |
| 60 | B | 1 | 0654/12 Feb/March 2022 |
| 61 | D | 1 | 0654/12 Feb/March 2023 |
| 62 | B | 1 | 0654/11 Oct/Nov 2023 |
| 63 | C | 1 | 0654/13 Oct/Nov 2023 |
| 64 | D | 1 | 0654/12 May/June 2024 |
| 65 | D | 1 | 0654/13 May/June 2024 |
| 66 | C | 1 | 0654/12 May/June 2025 |
| 67 | C | 1 | 0654/13 May/June 2025 |
11 The diagram shows a developing fetus attached to the uterus wall. fetus Q uterus wall What is the function of Q? A draining amniotic fluid B passing blood from the mother to the fetus C supplying carbon dioxide to the fetus D supplying oxygen to the fetus
1 marks
Answer: D
10 The diagram shows the male reproductive system. In which structure are hormones produced that control adolescence? A B C D
1 marks
Answer: D
11 What is the name of the organ in which a human baby grows until it is born? A ovary B oviduct C uterus D vagina
1 marks
Answer: C
11 In human reproduction, where does fertilisation usually take place? A ovary B oviduct C uterus D vagina
1 marks
Answer: B
11 The diagram shows a developing fetus attached to the uterus wall. fetus Q uterus wall What is the function of Q? A filtering amniotic fluid B passing blood from the mother to the fetus C supplying oxygen to the fetus D supplying urea to the fetus
1 marks
Answer: C
11 The diagram shows a fetus in a uterus. P Q R S Which parts enable pressure to be spread evenly around the fetus? A P and Q B P and S C Q and R D R and S
1 marks
Answer: B
10 The diagram shows the male reproductive system. In which structure are the hormones that control adolescence produced? A B C D
1 marks
Answer: D
10 Which structure contracts while a baby is being born? A cervix B placenta C umbilical cord D uterus
1 marks
Answer: D
10 The diagram shows a human embryo inside a uterus. 1 2 What are the functions of the numbered parts? 1 2 A hold the embryo in place make blood for the embryo B protect the embryo remove waste C provide food provide food D remove waste protect the embryo
1 marks
Answer: D
8 The diagram shows a human embryo inside a uterus. 1 2 What are the functions of the numbered parts? 1 2 A hold the embryo in place make blood for the embryo B protect the embryo remove waste C provide food provide food D remove waste protect the embryo
1 marks
Answer: D
11 The diagram shows a developing fetus. Where does the fetal blood become oxygenated? D uterus wall C A umbilical cord placenta B lungs
1 marks
Answer: A
10 The diagram shows a developing fetus. Where does the fetal blood become oxygenated? D uterus wall C A umbilical cord placenta B lungs
1 marks
Answer: A
13 The diagram shows a developing fetus. Where does the fetal blood become oxygenated? D uterus wall C A umbilical cord placenta B lungs
1 marks
Answer: A
9 What passes from a mother to a fetus in her uterus? A blood platelets B mineral ions C plasma D red blood cells
1 marks
Answer: B
13 What passes from a mother to a fetus in her uterus? A blood platelets B mineral ions C plasma D red blood cells
1 marks
Answer: B
13 What passes from a mother to a fetus in her uterus? A blood platelets B mineral ions C plasma D red blood cells
1 marks
Answer: B
9 The diagram shows a fetus attached to its mother’s uterus via the placenta. fetus placenta P uterus wall What is carried in structure P? mother’s blood | fetus’s blood oxygenated deoxygenated blood blood D x JY x W, key / = carried in P X = not carried in P
1 marks
Answer: C
10 The diagram shows a fetus attached to its mother’s uterus via the placenta. fetus placenta P uterus wall What is carried in structure P? mother’s blood fetus’s blood oxygenated deoxygenated blood blood A Jv x J x B Jv x x J Cc x Jv Jv Jv D x J x Jv key Y = carried in P X = not carried in P
1 marks
Answer: C
8 The diagram shows a fetus attached to its mother’s uterus via the placenta. fetus placenta P uterus wall What is carried in structure P? mother’s blood fetus’s blood oxygenated deoxygenated blood blood A Jv x J x B Jv x x J Cc x Jv Jv Jv D x J x Jv key Y = carried in P X = not carried in P
1 marks
Answer: C
9 Which structure contracts to expel the baby during birth? A cervix B oviduct C uterus wall D vagina
1 marks
Answer: C
10 Which structure produces seminal fluid? A prostate gland B sperm duct C testis D urethra
1 marks
Answer: A
10 Which structure produces seminal fluid? A prostate gland B sperm duct C testis D urethra
1 marks
Answer: A
10 The diagram shows a calendar for February and March with four days shaded. February March 7 14 21 28 7 14 21 28 1 8 15 22 1 8 15 22 29 2 9 16 23 2 9 16 23 30 3 10 17 24 3 10 17 24 31 4 11 18 25 4 11 18 25 5 12 19 26 5 12 19 26 6 13 20 27 6 13 20 27 Menstruation for a woman starts on February 14th. During which day will the lining of the uterus be at its thickest and be richest in blood vessels? A February 10th B February 15th C February 24th D March 15th
1 marks
Answer: A
10 When does fertilisation occur in humans? A when an egg nucleus begins to divide B when a sperm enters an egg cell membrane C when a sperm nucleus joins with an egg nucleus D when sperms are released inside the female
1 marks
Answer: C
11 The diagram shows a calendar for February and March with four days shaded. February March 7 14 21 28 7 14 21 28 1 8 15 22 1 8 15 22 29 2 9 16 23 2 9 16 23 30 3 10 17 24 3 10 17 24 31 4 11 18 25 4 11 18 25 5 12 19 26 5 12 19 26 6 13 20 27 6 13 20 27 Menstruation for a woman starts on February 14th. During which day will the lining of the uterus be at its thickest and be richest in blood vessels? A February 10th B February 15th C February 24th D March 15th
1 marks
Answer: A
10 The diagram shows the female reproductive system. Y Z X Which structures are the ovary and the oviduct? ovary oviduct A X Y B X Z C Z X D Z Y
1 marks
Answer: D
12 What does a human male inherit from his father? A an X allele B an X sperm C a Y chromosome D a Y gene
1 marks
Answer: C
12 The diagram shows the female reproductive system. Y Z X Which structures are the ovary and the oviduct? ovary oviduct A X Y B X Z C Z X D Z Y
1 marks
Answer: D
9 The diagram shows the male reproductive system of a human. Which labelled part is found only in a male? D A C B
1 marks
Answer: B
10 The diagram shows a sperm and an egg. Which diagram shows fertilisation? A B C D
1 marks
Answer: A
9 The diagram shows a sperm and an egg. Which diagram shows fertilisation? A B C D
1 marks
Answer: A
11 The diagram shows the male reproductive system of a human. Which labelled part is found only in a male? D A C B
1 marks
Answer: B
9 When a woman ovulates, into which structure is the egg first released? A ovary B oviduct C uterus D vagina
1 marks
Answer: B
10 In human reproduction, which cells are haploid? gametes zygotes v v loom > v x x v x x
1 marks
Answer: B
11 Which statement about human gametes is correct? A 50% of egg cells contain a Y chromosome. B 50% of sperm cells contain a Y chromosome. C 100% of egg cells contain a Y chromosome. D 100% of sperm cells contain a Y chromosome.
1 marks
Answer: B
9 The diagram shows the 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
10 The diagram shows the female reproductive system. X X Sometimes the tubes at X can become blocked. What is the result of this? A Eggs cannot reach the uterus. B Menstruation is prevented. C Ovulation is prevented. D Sperms cannot reach the uterus.
1 marks
Answer: A
12 What are the features of human reproduction? haploid zygote offspring ; formed in genetically nuclei fuse . ; oviduct identical A v v x B v x v Cc x v x D x x v
1 marks
Answer: A
10 The diagram shows the male reproductive system. Which structure produces the hormones that control adolescence? A D C B
1 marks
Answer: B
10 The diagram shows the male reproductive system. Which structure produces the hormones that control adolescence? A D C B
1 marks
Answer: B
7 The diagram shows what happens to glucose in the body. glucose synthesis of enzymes energy Y contraction of muscles release oxygen Z What are processes Y and Z? Y Z A photosynthesis growth B photosynthesis respiration C respiration growth D respiration photosynthesis
1 marks
Answer: C
11 Which part of the male reproductive system transports both sperm and urine? A prostate gland B sperm duct C testis D urethra
1 marks
Answer: D
10 How many chromosomes are there in a zygote of an animal? A half as many as in the egg B same number as in the egg C same number as in the sperm D twice as many as in the sperm
1 marks
Answer: D
10 In a human female, where is the egg usually fertilised? A ovary B oviduct C uterus D vagina
1 marks
Answer: B
6 A human baby develops inside its mother attached to the wall of her uterus by the placenta and umbilical cord. Which structure becomes embedded in the uterus wall to establish this connection? A a ball of cells grown from the zygote B a sperm C the unfertilised egg D the zygote
1 marks
Answer: A
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
10 The diagram shows the fusion of two gametes and division of the resulting cell. P Q R S Which row describes the nuclei of these cells? P Q R S A diploid diploid diploid haploid B diploid diploid haploid haploid C haploid haploid diploid diploid D haploid haploid haploid diploid
1 marks
Answer: C
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
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
10 Which row is correct about human gametes? site of female site of male gamete production gamete production A ovaries sperm ducts B ovaries testes C oviduct sperm ducts D oviduct testes
1 marks
Answer: B
11 Which statement about human gametes is correct? A Only 50% of egg cells contain an X chromosome. B Only 50% of sperm cells contain a Y chromosome. C 100% of egg cells contain a Y chromosome. D 100% of sperm cells contain an X chromosome.
1 marks
Answer: B
10 What is produced by the fusion of the nuclei of two gametes? A embryo B fetus C ovum D zygote
1 marks
Answer: D
10 The diagram shows the male reproductive system. Which label is pointing to the structure where sperm are produced? A B D C
1 marks
Answer: D
10 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
11 Which statement about human gametes is correct? A There is an X chromosome in all egg cells. B There is a Y chromosome in all egg cells. C There is an X chromosome in all sperm cells. D There is a Y chromosome in all sperm cells.
1 marks
Answer: A
10 The diagram shows the female reproductive system. Where does fertilisation usually occur? A B C D
1 marks
Answer: A
10 The diagram shows the human male reproductive system. Y X What are the functions of X and Y? X Y A carries urine and semen transfers sperm out of the body to the urethra B production of transfers semen to the vagina male gametes during sexual intercourse C transfers semen to the vagina production of during sexual intercourse male gametes D transfers sperm carries urine and semen to the urethra out of the body
1 marks
Answer: A
10 The diagram shows the human male reproductive system. Y X What are the functions of X and Y? X Y A carries urine and semen transfers sperm out of the body to the urethra B production of transfers semen to the vagina male gametes during sexual intercourse C transfers semen to the vagina production of during sexual intercourse male gametes D transfers sperm carries urine and semen to the urethra out of the body
1 marks
Answer: A
10 The diagram shows the female reproductive system. Which labelled part is the cervix? D A C B
1 marks
Answer: B
10 During the menstrual cycle, an egg is released at ovulation. The egg passes out of the body if it is not fertilised. What is the correct order of structures through which the egg passes? A cervix oviduct uterus vagina B oviduct uterus cervix vagina C oviduct vagina cervix uterus D uterus oviduct vagina cervix
1 marks
Answer: B
10 Which row correctly matches a structure with its function in the human reproductive system? structure function A cervix where the fetus develops B oviduct releases the female gamete C sperm duct secretes fluids that make semen D testes produces the male gametes
1 marks
Answer: D
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
10 There are different conditions which may prevent a successful pregnancy. 1 failure of ovulation 2 failure of embryo to implant into uterus lining 3 blockage of oviducts preventing fertilisation The diagram shows the human female reproductive system. W X Y Z Which locations are involved in each condition? 1 2 3 A W X Z B W Y X C X Y W D X Z W
1 marks
Answer: C
10 The diagram shows the human female reproductive system. Where is the embryo normally implanted to enable it to develop into a healthy fetus? A D B C
1 marks
Answer: D
10 The diagram shows the human female reproductive system. Where is the embryo normally implanted to enable it to develop into a healthy fetus? A D B C
1 marks
Answer: D
12 Which row is correct for a human gamete? chromosome where gamete name of gamete carried by gamete is produced A egg cell X testes B egg cell Y ovaries C sperm X testes D sperm Y ovaries
1 marks
Answer: C
12 Which row is correct for a human gamete? chromosome where gamete name of gamete carried by gamete is produced A egg cell X testes B egg cell Y ovaries C sperm X testes D sperm Y ovaries
1 marks
Answer: C