GCSE Biology Reproduction & plants questions by topic

Match each hormone to its source.

1. (a)Testosterone.[1]
2. (b)Oestrogen.[1]
3. (c)FSH.[1]
4. (d)Progesterone.[1]

Order the events of the menstrual cycle.

1. (a)Number these 1–4: menstruation (lining breaks down); uterus lining builds up; ovulation (egg released); follicle matures under FSH.[4]

Name the contraception method described.

1. (a)A pill containing oestrogen and progesterone that inhibits FSH.[1]
2. (b)A physical barrier that also protects against STIs.[1]
3. (c)A device that prevents embryos implanting.[1]
4. (d)Surgical cutting or tying of the tubes.[1]

(Biology only) Cress seedlings are grown with light from one side. Their tip angles are 36°, 40°, 38°, 37° and 39°.

1. (a)Calculate the mean bending angle.[2]

Match each reproductive structure or hormone to its role.

1. (a)Hormone driving puberty changes in boys.[1]
2. (b)Hormone driving puberty changes in girls.[1]
3. (c)Organ where sperm are made.[1]
4. (d)Organ that releases mature eggs.[1]

This question is about the timetable of the menstrual cycle.

1. (a)State the typical length of the cycle.[1]
2. (b)At about what point is an egg released?[1]
3. (c)Name the hormone whose fall lets the uterus lining break down.[1]
4. (d)Name the hormone that builds the lining up again afterwards.[1]

Describe the roles of FSH, oestrogen, LH and progesterone in the menstrual cycle.

1. (a)Describe the role of each hormone.[6]

Explain how the oral contraceptive pill works and evaluate its use.

1. (a)Explain the mechanism.[2]
2. (b)Evaluate benefits and risks.[4]

Describe the process of IVF.

1. (a)Describe the stages from hormones to implantation.[5]

A couple with three failed IVF cycles ask whether to continue.

1. (a)Explain two drawbacks they should weigh.[4]
2. (b)State one benefit that might justify continuing.[1]

A sexual-health clinic compares three contraceptive methods for a patient.

1. (a)State which method protects against sexually transmitted infections.[1]
2. (b)Suggest why a clinic might recommend using a condom as well as the pill.[2]
3. (c)Explain how the combined pill prevents pregnancy.[2]

This question is about the hormones that steer the menstrual cycle.

1. (a)Name the hormone whose sharp rise triggers ovulation and state what happens next.[2]
2. (b)Explain progesterone’s role after ovulation.[2]
3. (c)State what happens when progesterone falls.[1]
4. (d)State the effect of high oestrogen on LH.[1]

(Higher) Explain how the interactions of oestrogen and progesterone with FSH and LH control the cycle.

1. (a)Describe the feedback interactions.[6]

(Biology only) Explain how auxin produces phototropism in a shoot lit from one side.

1. (a)Write a full explanation.[6]

(Biology only) Evaluate the use of plant hormones in agriculture.

1. (a)Present uses, risks and a judgement.[6]

(Biology only) Seedlings grown in darkness reach a mean of 32 mm; identical seedlings in even light reach 24 mm.

1. (a)Calculate the percentage difference in height between dark-grown and light-grown seedlings, to the nearest whole number.[2]
2. (b)Explain why dark-grown seedlings are taller but weaker.[3]

Evaluate the use of hormones to control human fertility, covering contraception and IVF.

1. (a)Present the case for and against, with a judgement.[6]

(Biology only) Two batches of cress seedlings are grown: one lit from one side only, one lit evenly from above. After three days, the one-sided batch bends a mean of 38° towards the light; the even-light batch grows straight (about 2°).

1. (a)Describe the difference between the batches.[1]
2. (b)Explain the bending using auxin.[3]
3. (c)State why bending towards light benefits the plant.[1]
4. (d)Predict how a root would grow in the same one-sided light, and name the hormone responsible.[1]