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

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: Pollination in angiosperm is occurred by means of wind only.

Reason: Pollen grains in angiosperm are developed from filament.

Both the assertion and the reason are true and the reason is a correct explanation of the assertion.

Both the assertion and the reason are true and the reason is not a correct explanation of the assertion.

Assertion is true but the reason is false.

Both the assertion and reason are false.

2 / 10

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

Assertion: The cells of highly reduced female gametophyte (embryo sac in angiosperm) is haploid.

Reason: The embryosac is formed by meiosis.

Both the assertion and the reason are true and the reason is a correct explanation of the assertion.

Both the assertion and the reason are true and the reason is not a correct explanation of the assertion.

Assertion is true but the reason is false.

Both the assertion and reason are false.

3 / 10

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

Assertion: Half of the total CO2 fixation on earth is carried out by algae.

Reason: Algae increases the level of dissolved oxygen in their nearby environment.

Both the assertion and the reason are true and the reason is a correct explanation of the assertion.

Both the assertion and the reason are true and the reason is not a correct explanation of the assertion.

Assertion is true but the reason is false.

Both the assertion and reason are false.

4 / 10

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

Assertion: Only the red algae is able to flourish at the great depth of sea.

Reason: Red algae has the pigments r-phycoerythrin and r-phycocyanin.

Both the assertion and the reason are true and the reason is a correct explanation of the assertion.

Both the assertion and the reason are true and the reason is not a correct explanation of the assertion.

Assertion is true but the reason is false.

Both the assertion and reason are false.

5 / 10

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

Assertion: PEN is triploid in angiosperm.

Reason: PEN is formed by fusion of haploid male gamete with the dipoid secondary nucleus.

Both the assertion and the reason are true and the reason is a correct explanation of the assertion.

Both the assertion and the reason are true and the reason is not a correct explanation of the assertion.

Assertion is true but the reason is false.

Both the assertion and reason are false.

6 / 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.

Both the assertion and the reason are true and the reason is a correct explanation of the assertion.

Both the assertion and the reason are true and the reason is not a correct explanation of the assertion.

Assertion is true but the reason is false.

Both the assertion and reason are false.

7 / 10

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

Assertion: Sphagnum is used for transhipment of living material like seedlings.

Reason: Sphagnum has capacity of water retention.

Both the assertion and the reason are true and the reason is a correct explanation of the assertion.

Both the assertion and the reason are true and the reason is not a correct explanation of the assertion.

Assertion is true but the reason is false.

Both the assertion and reason are false.

8 / 10

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

Assertion: In some species of Chlamydomonas, the fusion of gamete is termed as anisogamous.

Reason: Because gametes which undergo fusion in these species are of dissimilar in size.

Both the assertion and the reason are true and the reason is a correct explanation of the assertion.

Both the assertion and the reason are true and the reason is not a correct explanation of the assertion.

Assertion is true but the reason is false.

Both the assertion and reason are false.

9 / 10

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

Assertion: Cytotaxonomy is based on the cytological information like chromosome number, structure and behaviour.

Reason: Chemotaxonomy that uses the chemical constituents of the plants.

Both the assertion and the reason are true and the reason is a correct explanation of the assertion.

Both the assertion and the reason are true and the reason is not a correct explanation of the assertion.

Assertion is true but the reason is false.

Both the assertion and reason are false.

10 / 10

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

Assertion: Pyrenoids are storage bodies.

Reason: Pyrenoids contains starch and proteins.

Both the assertion and the reason are true and the reason is a correct explanation of the assertion.

Both the assertion and the reason are true and the reason is not a correct explanation of the assertion.

Assertion is true but the reason is false.

Both the assertion and reason are false.

Your score is