TopicalBiology (9-1) 0970ReproductionSexual reproduction in humansPaper 1

Sexual reproduction in humans — Paper 1 · IGCSE Biology (9-1) 0970

16.4· 33 questions · 33 marks · 40 min · 2018–2025· Multiple choice

Every Cambridge IGCSE Biology (9-1) Paper 1 question on sexual reproduction in humans, laid out as 10 A4 pages with the mark scheme below. Nothing is left out. Free to read, no account.

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Questions10 pages

Question 1: Which row correctly links the named process with its description? process description A menstruation release of an egg B menstruation shedd…Question 2: Which method of birth control involves a surgical procedure? A condom B contraceptive pill C monitoring body temperature and cervical mucus…Question 3: The diagram shows the female reproductive system. Where does implantation normally occur? C B A D1 / 10
Question 4: The diagram shows a timeline of a woman’s menstrual cycle, which lasts for 28 days. 13 14 15 16 12 17 11 18 10 19 9 20 8 21 7 22 6 23 5 men…Question 5: In humans, what is an example of a secondary sexual characteristic in both males and females? A hair grows on face B hips widen C fat is de…Question 6: Which contraceptive method could provide protection from sexually transmitted infections? A condom B diaphragm C hormone implant D vasectomy2 / 10
Question 7: The diagram shows the female reproductive system. 3 2 4 1 Where does fertilisation normally occur? A 1 and 2 B 2 only C 3 and 4 D 4 onlyQuestion 8: What happens to the uterus lining during menstruation? A breaks down B new blood vessel growth C implantation of embryo D repair and thicke…Question 9: The diagram of the female reproductive system shows where different methods of birth control can be used. Where would an IUD be placed? B A…Question 10: When do the following stages occur in a typical human menstrual cycle? bleeding ovulation A days 13 – 14 days 6 – 25 B days 1 – 4 days 27 –…3 / 10
Question 11: The graph shows the number of pregnancies in 4 groups of 100 women. Each group used a different method of contraception. 20 number of 10 pr…Question 12: During childbirth, what must happen to the amniotic sac, cervix and the uterus wall? amniotic sac cervix uterus wall A breaks contracts con…Question 13: What is a barrier method of birth control? A contraceptive pill B diaphragm C contraceptive implant D vasectomyQuestion 14: Which structure in the male reproductive system makes the fluid for sperm to swim in? A penis B scrotum C prostate gland D testis4 / 10
Question 15: The graph shows a woman’s body temperature during the menstrual cycle. 37 body temperature / °C 36 menstruation 0 2 4 6 8 10 12 14 16 18 20…Question 16: Fertilisation is defined as the fusion of the ……X…… of two gametes to form a ……Y…… . Which row completes the sentence? X Y A alleles sex ce…5 / 10
Question 17: The effectiveness of different methods of birth control were studied in one country. The graph shows the results of the study. 100 80 perce…Question 18: What is the name of the ball of cells that forms soon after fertilisation in humans? A embryo B ovum C placenta D fetusQuestion 19: The diagram shows the inheritance of sex in humans. male gametes X Y female X XX XY gametes X XX XY A man and a woman have one female child…6 / 10
Question 20: The diagrams show four methods of birth control.

MON TUE WED THU FRI & SAT » SUN
SUN “SAT < FRI ~THU «WED TUE «Non?

Y ORAL CONTRACEPTIVE …Question 21: In a sperm cell, which structure contains enzymes that can digest the jelly coat of an egg cell? A acrosome B flagellum C mitochondria D nu…Question 22: The diagram shows some stages in reproduction. female structure M egg which releases eggs cell process cell Q P male structure N sperm whic…7 / 10
Question 23: Which part of the female reproductive system releases egg cells? A cervix B ovary C oviduct D uterusQuestion 24: Which adaptive feature of sperm provides the energy that enables it to swim? A the acrosome B the cell membrane C the flagellum D the mitoc…Question 25: What is the function of the acrosome in a sperm cell? A The acrosome contains enzymes that digest the jelly coat of an egg cell. B The acro…Question 26: Which diagram shows fertilisation? A B key female gamete C D male gamete nucleusQuestion 27: What is a flagellum? A a ball of cells that implants into the lining of the uterus B a cell structure that releases energy C a cell that fo…Question 28: Which word describes a fertilised cell? A acrosome B embryo C gamete D zygote8 / 10
Question 29: What happens to the uterus lining at the start of the menstrual cycle? A The uterus lining breaks down. B The uterus lining grows new blood…Question 30: The diagram shows a sperm cell. Which part contains digestive enzymes? A B C DQuestion 31: The diagram shows a human menstrual cycle. day 0 X day 21 Z day 7 Y day 14 What are represented by X, Y and Z? the lining of the uterus an …Question 32: The diagram shows the human female reproductive system. Where does fertilisation normally take place? A B C D9 / 10
Question 33: The diagram shows a developing fetus. capillaries in the X mother’s blood uterus lining developing fetus Which structure is represented by …10 / 10

Mark scheme33 answers

Answers below. Sit the paper first if you are practising.

Pastlit

Biology (9-1) 0970 · Sexual reproduction in humans — Paper 1

IGCSE · topical answer key — answer key (teacher use)

Question

Answer

Marks

1B1
2D1
3C1
4C1
5D1
6A1
7B1
8A1
9A1
10D1
11B1
12B1
13B1
14C1
15C1
16D1
17D1
18A1
19B1
20C1
21A1
22C1
23B1
24D1
25A1
26C1
27D1
28D1
29A1
30D1
31A1
32A1
33C1
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Questions as text

Q1 · Which row correctly links the named process with its description? 0970/11 May/June 2018

29 Which row correctly links the named process with its description? process description A menstruation release of an egg B menstruation shedding of the lining of the uterus C ovulation fusion of nuclei D ovulation start of puberty

1 marks

Answer: B

This question in 0970/11 May/June 2018

Q2 · Which method of birth control involves a surgical procedure? 0970/11 May/June 2018

31 Which method of birth control involves a surgical procedure? A condom B contraceptive pill C monitoring body temperature and cervical mucus D vasectomy

1 marks

Answer: D

This question in 0970/11 May/June 2018

Q3 · The diagram shows the female reproductive system 0970/12 Oct/Nov 2018

26 The diagram shows the female reproductive system. Where does implantation normally occur? C B A D

1 marks

Answer: C

This question in 0970/12 Oct/Nov 2018

Q4 · The diagram shows a timeline of a woman’s menstrual cycle, which lasts for 28 days 0970/12 Oct/Nov 2018

28 The diagram shows a timeline of a woman’s menstrual cycle, which lasts for 28 days. 13 14 15 16 12 17 11 18 10 19 9 20 8 21 7 22 6 23 5 menstruation 24 (period) 4 25 3 26 2 27 1 28 On which days of the menstrual cycle is a woman most likely to become pregnant? A days 1– 4 B days 7–10 C days 13–16 D days 20–23

1 marks

Answer: C

This question in 0970/12 Oct/Nov 2018

Q5 · In humans, what is an example of a secondary sexual characteristic in both males and… 0970/11 May/June 2019

30 In humans, what is an example of a secondary sexual characteristic in both males and females? A hair grows on face B hips widen C fat is deposited on hips and thighs D sexual organs grow

1 marks

Answer: D

This question in 0970/11 May/June 2019

Q6 · Which contraceptive method could provide protection from sexually transmitted infections? 0970/11 May/June 2019

31 Which contraceptive method could provide protection from sexually transmitted infections? A condom B diaphragm C hormone implant D vasectomy

1 marks

Answer: A

This question in 0970/11 May/June 2019

Q7 · The diagram shows the female reproductive system 0970/12 Oct/Nov 2019

28 The diagram shows the female reproductive system. 3 2 4 1 Where does fertilisation normally occur? A 1 and 2 B 2 only C 3 and 4 D 4 only

1 marks

Answer: B

This question in 0970/12 Oct/Nov 2019

Q8 · What happens to the uterus lining during menstruation? 0970/11 May/June 2020

29 What happens to the uterus lining during menstruation? A breaks down B new blood vessel growth C implantation of embryo D repair and thickening

1 marks

Answer: A

This question in 0970/11 May/June 2020

Q9 · The diagram of the female reproductive system shows where different methods of birth… 0970/11 May/June 2020

30 The diagram of the female reproductive system shows where different methods of birth control can be used. Where would an IUD be placed? B A C D

1 marks

Answer: A

This question in 0970/11 May/June 2020

Q10 · When do the following stages occur in a typical human menstrual cycle? 0970/12 May/June 2020

29 When do the following stages occur in a typical human menstrual cycle? bleeding ovulation A days 13 – 14 days 6 – 25 B days 1 – 4 days 27 – 28 C days 6 – 25 days 1 – 4 D days 1 – 4 days 13 – 14

1 marks

Answer: D

This question in 0970/12 May/June 2020

Q11 · The graph shows the number of pregnancies in 4 groups of 100 women 0970/12 May/June 2020

30 The graph shows the number of pregnancies in 4 groups of 100 women. Each group used a different method of contraception. 20 number of 10 pregnancies 0 contraceptive intra-uterine diaphragm monitoring body pill device (IUD) temperature The method of contraception which is the most effective is A barrier. B chemical. C natural. D surgical.

1 marks

Answer: B

This question in 0970/12 May/June 2020

Q12 · During childbirth, what must happen to the amniotic sac, cervix and the uterus wall? 0970/12 Oct/Nov 2020

30 During childbirth, what must happen to the amniotic sac, cervix and the uterus wall? amniotic sac cervix uterus wall A breaks contracts contracts B breaks dilates contracts C expands contracts relaxes D expands dilates relaxes

1 marks

Answer: B

This question in 0970/12 Oct/Nov 2020

Q13 · What is a barrier method of birth control? 0970/12 Oct/Nov 2020

31 What is a barrier method of birth control? A contraceptive pill B diaphragm C contraceptive implant D vasectomy

1 marks

Answer: B

This question in 0970/12 Oct/Nov 2020

Q14 · Which structure in the male reproductive system makes the fluid for sperm to swim in? 0970/11 May/June 2021

31 Which structure in the male reproductive system makes the fluid for sperm to swim in? A penis B scrotum C prostate gland D testis

1 marks

Answer: C

This question in 0970/11 May/June 2021

Q15 · The graph shows a woman’s body temperature during the menstrual cycle 0970/11 May/June 2021

32 The graph shows a woman’s body temperature during the menstrual cycle. 37 body temperature / °C 36 menstruation 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 day On which days is the woman most likely to become pregnant? A days 0–5 B days 6–12 C days 13–18 D days 19–28

1 marks

Answer: C

This question in 0970/11 May/June 2021

Q16 · Fertilisation is defined as the fusion of the ……X…… of two gametes to form a ……Y…… 0970/12 Oct/Nov 2021

30 Fertilisation is defined as the fusion of the ……X…… of two gametes to form a ……Y…… . Which row completes the sentence? X Y A alleles sex cell B alleles zygote C nuclei sex cell D nuclei zygote

1 marks

Answer: D

This question in 0970/12 Oct/Nov 2021

Q17 · The effectiveness of different methods of birth control were studied in one country 0970/11 May/June 2022

32 The effectiveness of different methods of birth control were studied in one country. The graph shows the results of the study. 100 80 percentage 60 effectiveness 40 20 0 condom contraceptive injection contraceptive pill femidom monitoring body temperature vasectomy method of birth control Which type of birth control is the most effective in this study? A barrier B chemical C natural D surgical

1 marks

Answer: D

This question in 0970/11 May/June 2022

Q18 · What is the name of the ball of cells that forms soon after fertilisation in humans? 0970/12 May/June 2022

31 What is the name of the ball of cells that forms soon after fertilisation in humans? A embryo B ovum C placenta D fetus

1 marks

Answer: A

This question in 0970/12 May/June 2022

Q19 · The diagram shows the inheritance of sex in humans 0970/12 May/June 2022

32 The diagram shows the inheritance of sex in humans. male gametes X Y female X XX XY gametes X XX XY A man and a woman have one female child. What is the chance of the couple’s next child being female? A 25% B 50% C 75% D 100%

1 marks

Answer: B

This question in 0970/12 May/June 2022

Q20 · The diagrams show four methods of birth control 0970/12 Oct/Nov 2022

32 The diagrams show four methods of birth control. MON TUE WED THU FRI & SAT » SUN SUN “SAT < FRI ~THU «WED TUE «Non? Y ORAL CONTRACEPTIVE TABLETS MON® TUE WED THU ® FRI & SAT & SUN SUN “SAT —1 FRI THU «WED~«TUE =NoN WHEN THIS PACK IS EMPTY START A NEW ONE IMMEDIATELY not to scale What are barrier methods of birth control? —s 0 0O WwW > «~ «eM Ke & KS & << [0 x Kx QS \ & & [a key v= yes X =no

1 marks

Answer: C

This question in 0970/12 Oct/Nov 2022

Q21 · In a sperm cell, which structure contains enzymes that can digest the jelly coat of an… 0970/12 May/June 2023

32 In a sperm cell, which structure contains enzymes that can digest the jelly coat of an egg cell? A acrosome B flagellum C mitochondria D nucleus

1 marks

Answer: A

This question in 0970/12 May/June 2023

Q22 · The diagram shows some stages in reproduction 0970/12 Oct/Nov 2023

31 The diagram shows some stages in reproduction. female structure M egg which releases eggs cell process cell Q P male structure N sperm which releases sperm cell Which letter correctly identifies the structure or process? A M is the oviduct. B N is the sperm duct. C P is fertilisation. D Q is the gamete.

1 marks

Answer: C

This question in 0970/12 Oct/Nov 2023

Q23 · Which part of the female reproductive system releases egg cells? 0970/11 May/June 2024

32 Which part of the female reproductive system releases egg cells? A cervix B ovary C oviduct D uterus

1 marks

Answer: B

This question in 0970/11 May/June 2024

Q24 · Which adaptive feature of sperm provides the energy that enables it to swim? 0970/11 May/June 2024

33 Which adaptive feature of sperm provides the energy that enables it to swim? A the acrosome B the cell membrane C the flagellum D the mitochondria

1 marks

Answer: D

This question in 0970/11 May/June 2024

Q25 · What is the function of the acrosome in a sperm cell? 0970/12 May/June 2024

30 What is the function of the acrosome in a sperm cell? A The acrosome contains enzymes that digest the jelly coat of an egg cell. B The acrosome is needed for the sperm cell to move. C The acrosome releases energy. D The acrosome stores genetic information.

1 marks

Answer: A

This question in 0970/12 May/June 2024

Q26 · Which diagram shows fertilisation? 0970/12 May/June 2024

31 Which diagram shows fertilisation? A B key female gamete C D male gamete nucleus

1 marks

Answer: C

This question in 0970/12 May/June 2024

Q27 · What is a flagellum? 0970/12 Oct/Nov 2024

32 What is a flagellum? A a ball of cells that implants into the lining of the uterus B a cell structure that releases energy C a cell that forms after the sperm cell fuses with the egg cell D an adaptive feature used for movement of sperm cells

1 marks

Answer: D

This question in 0970/12 Oct/Nov 2024

Q28 · Which word describes a fertilised cell? 0970/12 Oct/Nov 2024

33 Which word describes a fertilised cell? A acrosome B embryo C gamete D zygote

1 marks

Answer: D

This question in 0970/12 Oct/Nov 2024

Q29 · What happens to the uterus lining at the start of the menstrual cycle? 0970/11 May/June 2025

30 What happens to the uterus lining at the start of the menstrual cycle? A The uterus lining breaks down. B The uterus lining grows new blood vessels. C An embryo implants in the uterus lining. D The uterus lining repairs and thickens.

1 marks

Answer: A

This question in 0970/11 May/June 2025

Q30 · The diagram shows a sperm cell 0970/12 May/June 2025

26 The diagram shows a sperm cell. Which part contains digestive enzymes? A B C D

1 marks

Answer: D

This question in 0970/12 May/June 2025

Q31 · The diagram shows a human menstrual cycle 0970/12 May/June 2025

28 The diagram shows a human menstrual cycle. day 0 X day 21 Z day 7 Y day 14 What are represented by X, Y and Z? the lining of the uterus an ovary releases a thick uterus lining is breaking down an egg is maintained A X Y Z B X Z Y C Z Y X D Z X Y

1 marks

Answer: A

This question in 0970/12 May/June 2025

Q32 · The diagram shows the human female reproductive system 0970/12 Oct/Nov 2025

25 The diagram shows the human female reproductive system. Where does fertilisation normally take place? A B C D

1 marks

Answer: A

This question in 0970/12 Oct/Nov 2025

Q33 · The diagram shows a developing fetus 0970/12 Oct/Nov 2025

26 The diagram shows a developing fetus. capillaries in the X mother’s blood uterus lining developing fetus Which structure is represented by X? A amniotic sac B cervix C placenta D umbilical cord

1 marks

Answer: C

This question in 0970/12 Oct/Nov 2025