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CH 8

The document discusses a chapter about how organisms reproduce. It provides 8 questions testing assertion and reasoning skills. The questions provide an assertion and a reason, and ask the reader to determine if the reason correctly explains the assertion, if they are both true but unrelated, if only the assertion is true, or if only the reason is true. An answer key is provided to check the responses.

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Shubh Mantri
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421 views2 pages

CH 8

The document discusses a chapter about how organisms reproduce. It provides 8 questions testing assertion and reasoning skills. The questions provide an assertion and a reason, and ask the reader to determine if the reason correctly explains the assertion, if they are both true but unrelated, if only the assertion is true, or if only the reason is true. An answer key is provided to check the responses.

Uploaded by

Shubh Mantri
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Chapter - 8

How Do Organisms Reproduce


( Assertion and Reasoning Questions )

Following questions consist of two statements – Assertion (A) and Reason (R).
Answer these questions selecting the appropriate option given below:
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.

Q.1. Assertion(A) : Asexual reproduction is a primitive type of reproduction.


Reason (R) : Asexual reproduction involves only mitotic cell division.

Q.2. Assertion(A) : Spores are unicellular bodies.


Reason (R) : The parent body simply breaks up into smaller pieces on maturation.

Q.3. Assertion(A) : Clones are offspring of an organism formed by asexual


reproduction.
Reason (R) : Clones have exact copies of DNA as their parent.

Q.4. Assertion(A) : Colonies of yeast multiply in sugar solution.


Reason (R) : Sugar is made of sucrose which provides energy for sustaining all life
activities.

Q.5. Assertion(A) : Pollen grains from the carpel stick to the stigma of stamen.
Reason (R) : The fertilised egg cells grow inside the ovules and become seeds.
Q.6. Assertion(A) : The offspring produced by sexual reproduction is likely to
adjust better in environmental fluctuation.
Reason (R) : During the fusion of gametes there is mixing of genetic material from
two parents.

Q.7. Assertion(A) : Growth hormone stimulates the growth of different body parts.
Reason (R) : Gonadotropins stimulate the production of sex hormones.

Q.8. Assertion(A) : Testes lie in penis outside the body.


Reason (R) : Sperms require temperature lower than the body temperature for
development-x-x-x-

ANSWER KEY
Q.1 : (a) Q.2 : (c) Q.3 : (b) Q.4 : (a)
Q.5 : (d) Q.6 : (a) Q.7 : (b) Q.8 : (d)

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