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IB Biology HL 3.1.3 Integration of organs Question Bank

Practise IB Biology HL 3.1.3 by relating organ connections and blood pathways to coordinated digestion, nutrient distribution and hormonal regulation.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Relate organ connections and blood pathways to digestion, nutrient distribution and hormonal regulation.
  • Interpret organ diagrams and blood-plasma evidence to explain how digestive organs work together.

C3.1.3—Integration of organs question 1

[Maximum number: 1]

Why do nutrient molecules enter the blood?

A

Blood carries nutrients to cells.

B

Blood converts nutrients into energy.

C

Nutrients and oxygen are mixed by blood.

D

Nutrients are stored in blood.

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