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Important Questions

Sense Organs

ICSE · Class 10 · Biology

Most important questions from Sense Organs for ICSE Class 10 Biology board exam 2026. MCQs, short answer, and long answer questions with marks.

43 questions28 flashcards5 concepts

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A flowchart illustrating the pathway from stimulus detection by a receptor (sense organ) to the brain's interpretation and the body's response via an effector.
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43 Questions·
multiple choicemultiple correct

Sample Questions

1multiple correct

Which of the following are functions of tears? (Select all correct answers)

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Clean the eye from dust, Kill bacteria, Lubricate the eye

Tears contain lysozyme enzyme that kills bacteria, wash away dust particles, and lubricate the eye surface. They don't focus light or control pupil size - these are functions of lens and iris respectively.

2multiple correct

Which parts of the ear help in maintaining balance? (Select all correct answers)

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Semicircular canals, Utriculus, Sacculus

Semicircular canals maintain dynamic equilibrium, while utriculus and sacculus maintain static balance. Cochlea is for hearing and eardrum transmits sound vibrations.

3multiple choice

What causes night blindness?

Show answer

Lack of rhodopsin due to vitamin A deficiency

Night blindness occurs due to deficiency of vitamin A, which is needed for rhodopsin formation in rod cells. Rhodopsin is essential for vision in dim light.

4multiple choice

The transparent part of the eye that allows light to enter is called:

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Cornea

Cornea is the transparent anterior part of the eye that allows light to enter. It has no blood supply and is one-sixth of the total eyeball. Pupil is an opening, not a structure.

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Frequently Asked Questions

What are the important topics in Sense Organs for ICSE Class 10 Biology?
Sense Organs covers several key topics that are frequently asked in ICSE Class 10 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Sense Organs — ICSE Class 10 Biology?
Understand the core concepts first, then work through the 43 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
How many important questions are there in Sense Organs?
There are 43 practice questions available for Sense Organs. These cover multiple question types including MCQs, short answer, and long answer questions.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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