Edexcel IGCSE Biology 2.25 Nutrients & Their Functions
Practise linking carbohydrates, proteins, lipids, vitamins, minerals, water and fibre to their dietary roles and sources.
- Syllabus
- First assessment 2019
- Course
- Biology 4BI1
Exam points
- match named nutrients to energy, growth, repair or specific vitamin and mineral roles
- explain deficiency consequences using the missing nutrient's normal function
- calculate or interpret recommended intake and link fibre to healthy gut movement
2.25 Dietary sources and functions question 1
The diagram shows a fetus in the uterus of a woman.
The umbilical cord transports blood from the placenta to the fetus.
This blood contains molecules from the mother that are needed by the developing fetus.
Doctors recommend that pregnant women obtain more of some dietary components than women who are not pregnant.
The table shows the recommended percentage increase of some dietary components in the diet of a woman who is pregnant compared to a woman who is not pregnant.
Explain why a woman who is pregnant requires more of each of the dietary components listed in the table.
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