Biology : XI-CH07- Structural Organization in Animals – Assertion and Reason

Biology : XI-CH07 – Structural Organization in Animals – Assertion and Reason

Read the assertion and reason carefully to mark the correct option.

10 Random question from this chapter are displayed, you can take the quiz multiple times to cover all questions

1 / 10

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion: If head of cockroach is cut off, it will still live for as long as one week.

Reason: Head contain a bit of a nervous system.

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true and (R) is not correct explanation of the assertion

(A) is true but (R) is false

Both (A) and (R) are false

2 / 10

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion: Cardiac muscle cell contract as a unit.

Reason: Communication junction (intercalated disc) present between the adjacent cells.

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true and (R) is not correct explanation of the assertion

(A) is true but (R) is false

Both (A) and (R) are false

3 / 10

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion: Cockroach is uricotelic.

Reason: Fat bodies, nephrocyte and urecose glands help in excretion in cockroach

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true and (R) is not correct explanation of the assertion

(A) is true but (R) is false

Both (A) and (R) are false

4 / 10

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion: Cells of Adipose tissue are specialised to store carbohydrates.

Reason: Excess of fat which is not used immediately converted in carbohydrates and is stored in this tissue.

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true and (R) is not correct explanation of the assertion

(A) is true but (R) is false

Both (A) and (R) are false

5 / 10

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion: Cockroach is monoecious.

Reason: Male and female sex organ is present in single organism.

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true and (R) is not correct explanation of the assertion

(A) is true but (R) is false

Both (A) and (R) are false

6 / 10

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion: Head of cockroach shows great mobility in all direction.

Reason: Cockroach possess flexible neck

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true and (R) is not correct explanation of the assertion

(A) is true but (R) is false

Both (A) and (R) are false

7 / 10

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion: Neurons are said to possess the property of excitability.

Reason: Neurons can get excited by a given stimulus.

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true and (R) is not correct explanation of the assertion

(A) is true but (R) is false

Both (A) and (R) are false

8 / 10

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion: Ciliated epithelium mainly present in the inner surface of hollow organs like bronchioles and fallopian tube.

Reason: Cilia are microvilli.

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true and (R) is not correct explanation of the assertion

(A) is true but (R) is false

Both (A) and (R) are false

9 / 10

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion: Frog shows sexual dimorphism

Reason: Male frog can be distinguished from female by presence of vocal sacs

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true and (R) is not correct explanation of the assertion

(A) is true but (R) is false

Both (A) and (R) are false

10 / 10

Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion: Earthworm known as friend of farmers

Reason: They make soil porous which helps in respiration and penetration of the developing plant roots.

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true and (R) is not correct explanation of the assertion

(A) is true but (R) is false

Both (A) and (R) are false

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