General Knowledge carries 50 marks in the AISSEE Class 6 paper and is also tested in the RMS CET. These 10 MCQs on Human Body, Food and Digestion cover facts that are asked again and again in Sainik and Military School entrance exams.
Quick facts: AISSEE 2027 will be held on Sunday, 31 January 2027. There is no negative marking, so attempt every question. Online applications are open until 2 December 2026 on exams.nta.nic.in/sainik-school-society.
Practice Questions
Q1. Which is the largest organ of the human body?
(A) Liver
(B) Heart
(C) Brain
(D) Skin
Q2. How many bones are there in the body of an adult human?
(A) 196
(B) 206
(C) 300
(D) 216
Q3. Digestion of food begins in the ________.
(A) small intestine
(B) mouth
(C) stomach
(D) large intestine
Q4. Which organ pumps blood to all parts of the body?
(A) Lungs
(B) Kidneys
(C) Heart
(D) Liver
Q5. Lack of Vitamin C causes which disease?
(A) Scurvy
(B) Beriberi
(C) Night blindness
(D) Rickets
Q6. Lack of Vitamin D causes which disease in children?
(A) Anaemia
(B) Rickets
(C) Scurvy
(D) Goitre
Q7. Iodine deficiency causes ________.
(A) goitre
(B) scurvy
(C) anaemia
(D) night blindness
Q8. Which nutrient is called "body-building food"?
(A) Fats
(B) Carbohydrates
(C) Proteins
(D) Roughage
Q9. The smallest bone in the human body is found in the ________.
(A) finger
(B) nose
(C) toe
(D) ear
Q10. Which method of food preservation is used to make pickles last long?
(A) Adding water
(B) Freezing in ice
(C) Adding salt and oil
(D) Keeping in sunlight after cooking only
Answer Key with Explanations
(D) Skin — The skin is the largest organ; the liver is the largest internal organ.
(B) 206 — An adult has 206 bones; a baby is born with about 300.
(B) mouth — Saliva starts breaking down starch in the mouth.
(C) Heart — The heart pumps blood through blood vessels.
(A) Scurvy — Scurvy causes bleeding gums; citrus fruits are rich in Vitamin C.
(B) Rickets — Rickets weakens bones; sunlight helps the body make Vitamin D.
(A) goitre — Iodised salt helps prevent goitre.
(C) Proteins — Proteins help in growth and repair of the body.
(D) ear — The stapes in the middle ear is the smallest bone.
(C) Adding salt and oil — Salt and oil stop the growth of microbes in pickles.
How did you score?
9–10 correct: excellent — move on to a full-length mock test. 6–8: good — revise the explanations of the questions you missed. Below 6: study this topic again from your NCERT book and retry these questions after two days.
Free AISSEE / RMS Mock Test
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