Cambridge IGCSE Biology practice

Paper 3 structured question: Sex hormones in humans

Try the question first, then check the answer and practise the same topic again.

At a glance

Paper

Marks

Topic

Sex hormones in humans

Exam-style question

Try this first

Paper 3Theory (Core)3 marks

The menstrual cycle prepares the uterus for pregnancy by changing the uterine lining.

Description

The uterine lining thickens after menstruation and is shed if fertilization does not occur.

a
Describe Describe the changes in the uterine lining during the menstrual cycle.
Your answer
Aim for approximately 3 distinct marking points.
[3]

0 of 1 part answered

Answer every part before opening the mark scheme.

Common mistake

No common mistake is linked to this question yet.

Flashcard 1 of 6

Press Space to flip, arrows to move

Paper 3Theory (Core)3 marks

Diagram Description

A diagram shows the phases of the menstrual cycle with changes in the ovary and uterine lining over 28 days.

Day	Ovary	Uterine Lining
1-5	Menstruation: follicle begins to develop	Menstrual bleeding: lining breaks down
6-14	Follicle matures	Lining thickens
14	Ovulation: egg released	Lining thick and ready
15-28	Corpus luteum forms	Lining maintained or breaks down if no fertilization

a
Describe Describe the changes that occur in the ovaries during the menstrual cycle.
Your answer
Aim for approximately 3 distinct marking points.
[3]