Online Test — The Human Body: Working Systems
10 Questions • 12 min • Chapter MCQ
12:00
Question 1 of 10
easy
The organs we breathe with are the…
Bones
Kidneys
Lungs
Eyes
Explanation: We breathe using our lungs.
Question 2 of 10
easy
We breathe in mainly to take in the gas…
Smoke
Oxygen
Steam
Dust
Explanation: We breathe in oxygen, which the body needs.
Question 3 of 10
easy
Many cells of the same kind together form a…
Star
Stone
Tissue
River
Explanation: Similar cells group into tissues.
Question 4 of 10
easy
Teeth help in digestion by…
Smelling
Tasting only
Chewing and breaking food
Pumping blood
Explanation: Teeth break food into small pieces.
Question 5 of 10
easy
Blood carries ___ and food to every part of the body.
Sand
Oxygen
Plastic
Glass
Explanation: Blood delivers oxygen and food to cells.
Question 6 of 10
medium
The beating you feel at your wrist is your…
Yawn
Sneeze
Cough
Pulse
Explanation: The pulse shows your heartbeats.
Question 7 of 10
medium
The correct order from smallest to largest is…
Cell, tissue, organ, system
System, organ, cell, tissue
Organ, cell, system, tissue
Tissue, cell, system, organ
Explanation: Cells make tissues, tissues make organs, organs make systems.
Question 8 of 10
easy
The organ that controls the whole body and helps us think is the…
Stomach
Brain
Lung
Heart
Explanation: The brain controls the body and lets us think.
Question 9 of 10
easy
Muscles help the body to…
Move
See
Smell
Taste
Explanation: Muscles pull on bones to make us move.
Question 10 of 10
medium
Most digested food is absorbed into the blood in the…
Mouth
Small intestine
Lungs
Heart
Explanation: The small intestine absorbs digested food.