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All Exams  >   Class 6  >   Year 6 Science IGCSE (Cambridge)  >   All Questions

All questions of The Human Body for Class 6 Exam

How does the body’s skin help prevent diseases?
  • a)
    By producing acid to kill germs
  • b)
    By releasing chemicals in tears
  • c)
    By trapping germs in mucus
  • d)
    By acting as a barrier to germs
Correct answer is option 'D'. Can you explain this answer?

Keystone Instructors answered
The skin acts as a barrier to prevent germs from entering the body, as described in the body’s defenses section. The other options refer to different defense mechanisms, so D is correct.
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What did Marcello Malpighi observe that helped confirm the connection between arteries and veins?
  • a)
    Capillaries
  • b)
    Heart valves
  • c)
    Blood cells
  • d)
    Lung tissue
Correct answer is option 'A'. Can you explain this answer?

Freak Artworks answered
Marcello Malpighi observed capillaries under a microscope, confirming their role in connecting arteries and veins, as per the historical section. The other options are unrelated to his discovery, so A is correct.

What is the process called when a sperm cell joins with an egg cell?
  • a)
    Fertilisation
  • b)
    Menstruation
  • c)
    Puberty
  • d)
    Circulation
Correct answer is option 'A'. Can you explain this answer?

Subset Academy answered
Fertilisation is the process where a sperm cell joins an egg cell to form a new organism, as explained in the reproductive system section. The other options refer to different processes, so A is correct.

Which part of the respiratory system traps germs to prevent infection?
  • a)
    Mucus
  • b)
    Lungs
  • c)
    Muscles
  • d)
    Air tubes
Correct answer is option 'A'. Can you explain this answer?

Subset Academy answered
Mucus in the respiratory system traps germs in the nose and air passages, helping prevent infections, as noted in the body’s defenses section. The other options do not directly trap germs, so A is correct.

Which organ in the female reproductive system is responsible for producing ova?
  • a)
    Uterus
  • b)
    Oviducts
  • c)
    Ovaries
  • d)
    Birth canal
Correct answer is option 'C'. Can you explain this answer?

Rahul Kumar answered
The ovaries produce ova (egg cells) in the female reproductive system. The uterus, oviducts, and birth canal have different roles, so C is the correct answer.

Which part of the heart pumps oxygen-poor blood to the lungs?
  • a)
    Left side
  • b)
    Right side
  • c)
    Both sides
  • d)
    None of the above
Correct answer is option 'B'. Can you explain this answer?

Edgy Education answered
The right side of the heart pumps oxygen-poor blood to the lungs for oxygenation, while the left side pumps oxygen-rich blood to the body. Thus, option B is correct, and the others are inaccurate.

Which practice helps prevent the spread of diseases transmitted by insects like mosquitoes?
  • a)
    Washing hands frequently
  • b)
    Sleeping under bed nets
  • c)
    Covering food
  • d)
    Boiling drinking water
Correct answer is option 'B'. Can you explain this answer?

Edgy Education answered
Sleeping under bed nets prevents mosquito bites, which transmit diseases like malaria, as explained in the disease prevention section. The other options address different disease transmission methods, making B correct.

What is the role of capillaries in the circulatory system?
  • a)
    Connect arteries and veins, allowing substance exchange
  • b)
    Carry blood away from the heart
  • c)
    Prevent backflow of blood
  • d)
    Pump blood to the lungs
Correct answer is option 'A'. Can you explain this answer?

Subset Academy answered
Capillaries connect arteries and veins and have thin walls to allow the exchange of substances like oxygen and nutrients, as per the text. The other options describe functions of arteries, veins, or the heart, so A is correct.

What is the primary function of the circulatory system?
  • a)
    To produce hormones
  • b)
    To transport nutrients, oxygen, and remove waste
  • c)
    To protect the body from infections
  • d)
    To regulate body temperature
Correct answer is option 'B'. Can you explain this answer?

Freak Artworks answered
The circulatory system’s primary role is to transport nutrients, oxygen, and remove waste products like carbon dioxide, as described in the text. Options A, C, and D are incorrect as they refer to functions of other systems or are not the primary role.

Chapter doubts & questions for The Human Body - Year 6 Science IGCSE (Cambridge) 2025 is part of Class 6 exam preparation. The chapters have been prepared according to the Class 6 exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for Class 6 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.

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