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CLASS-9 SCIENCE- ASSERTION AND REASONING

Authored by aslekha philip

Biology, Science

9th Grade

Used 120+ times

CLASS-9 SCIENCE- ASSERTION AND REASONING
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8 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Assertion: A. All living organisms are composed of cells and products of cells.

Reason: B. All cells arise from pre-existing cells.

both assertion and reason are true and reason is the correct explanation of assertion

both assertion and reason are true but reason is not the correct explanation of assertion.

assertion is true but reason is false.

both assertion and reason are false.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Assertion: A. The cytoplasm is the main arena of cellular activities in both the plant and animal cells.

Reason: B. Various chemical reactions occur in it to keep the cell in the ‘living state’.

Both are incorrect

A is correct but B is incorrect

Both are correct

A is incorrect but B is correct

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Assertion. Collenchyma is thick walled tissue.

Reason. Collenchyma is thickened due to deposition of pectin.

both true but reason not correct explanation

assertion true but reason is wrong

both are wrong

both are incorrect

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Assertion : The number of cells in a multicellular organism is inversely proportional to size of body.

Reason : All cells of biological world are alive.

both true but reason not correct explanation

assertion true but reason is wrong

both are wrong

both are correct

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Assertion : The number of cells in a multicellular organism is inversely proportional to size of body.

Reason : All cells of biological world are alive.

A is correct but B is incorrect

A is incorrect but B is correct

Both are correct

Both are incorrect

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

· ASSERTION Chromosmes are constituted by DNA and protein.

REASON: These are thread like structures present in nucleus.

both assertion and reason are true and reason is the correct explanation of assertion.

both assertion and reason are true, but reason is not correct explanation of assertion.

assertion is true, but reason is false.

both assertion and reason is true.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

ASSERTION Golgi bodies store, modify and pack products in vesciles.

REASON They are involved in the formation of lysosomes.

both assertion and reason are true and reason is the correct explanation of assertion.

both assertion and reason are true, but reason is not correct explanation of assertion.

assertion is true, but reason is false.

both assertion and reason is true.

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