Biology : XI-CH03 – Plant Kingdom -Assertion and Reason

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Biology : Ch03 – Plant Kingdom – 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: Bryophytes are of great ecology importance.

Reason: Bryophytes play important role in plant succession on bare rocks.

2 / 10

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

Assertion: The spread of living Pteridophytes is restricted to narrow geographical region.

Reason: They require cool, damp and shady place to grow and require water for fertilization.

3 / 10

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

Assertion: Bryophytes are called amphibian of plant kingdom.

Reason: These plants live in soil but are dependent on water for sexual reproduction.

4 / 10

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

Assertion: Algae increases level of dissolved oxygen in their immediate environment.

Reason: They show oxygenic photosynthesis

5 / 10

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

Assertion: Pteridophytes evolutionarily, are first terrestrial vascular plants.

Reason: Pteridophytes are soil binders

6 / 10

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

Assertion: Most algae show haplontic type of life cycle.

Reason: A Fucus alga shows diplontic type of life cycle.

7 / 10

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

Assertion: Algae are useful to man.

Reason: At least half of the total CO2 fixation on earth is carried out by algae.

8 / 10

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

Assertion: Sexual reproduction in volvox is oogamous type.

Reason: Both of fusing gamete of volvox is non flagellated and similar in size.

9 / 10

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

Assertion: Pteridophytes are used for medicinal purposes and soil binders.

Reason: They are the first terrestrial plants to possess vascular tissues.

10 / 10

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

Assertion: The earliest systems of classification used only superficial morphological characters.

Reason: Artificial system gave equal weightage to vegetative and sexual characterstics.

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