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Junior Cycle · Junior Cycle Science

Junior Cycle Science: Human body systems

How often Human body systems comes up on the Science papers, every year it was asked, and questions to try.

CL Asked on 5 of the last 6 Common Level papers, most recently in 2026. most years

Human body systems, Common Level(7 marks)

Quick ones on Human body systems.

(a)Where does most digestion and absorption of food take place?
  1. Stomach
  2. Small intestine
  3. Oesophagus
(b)Which blood vessels carry blood away from the heart?
  1. Capillaries
  2. Veins
  3. Arteries
(c)In the lungs, where does gas exchange happen?
  1. Alveoli (air sacs)
  2. Diaphragm
  3. Trachea (windpipe)
Show the answers

(a) Small intestine

(b) Arteries

(c) Alveoli (air sacs)

Your turn: Common Level questions on Human body systems.

Common Level

Asked on 5 of the last 6 Common Level papers, most recently in 2026. most years

Every paper, year by year

YearWhere it came up
2026Q1
2025Q3, Q8, Q12
2024Not asked
2023Q14, Q15
2022Q10, Q14
2019Q9, Q12

Links open the State Examinations Commission’s paper for that year.

More Human body systems questions

Human body systems, 2 marks

What is the main job of the large intestine?

  1. Making bile
  2. Digesting protein
  3. Absorbing water
Show the answer

Absorbing water

The large intestine absorbs water from undigested food, forming faeces. Bile is made in the liver; protein is digested in the stomach and small intestine.

Human body systems, 3 marks

What does the diaphragm do when you breathe in?

  1. Stays still while the ribs move
  2. Contracts and moves down
  3. Relaxes and moves up
Show the answer

Contracts and moves down

When the diaphragm contracts it flattens and moves down, and the ribs move up and out. The chest volume increases, so pressure falls and air is drawn into the lungs.

Other Science topics

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