Assertion: Chasmogamous flowers require polli | vedclass

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(A) The majority of angiosperms bear $Chasmogamous$ flowers,which means the flowers expose their mature anthers and stigma to the pollinating agents.

Vedclass · Accepted Answer

If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

Vedclass · Answer

(A) The majority of angiosperms bear $Chasmogamous$ flowers,which means the flowers expose their mature anthers and stigma to the pollinating agents. Therefore,they require external agents for pollination.$Cleistogamous$ flowers are those that do not open at all,meaning their anthers and stigma lie close to each other. When anthers dehisce in the closed flower buds,pollen grains come in contact with the stigma to effect pollination. Thus,they do not expose their sex organs and do not require pollinating agents.Since both statements are correct and the reason explains why $Chasmogamous$ flowers (which do expose their sex organs) require agents while $Cleistogamous$ flowers do not,the correct option is $A$.

Assertion: $Chasmogamous$ flowers require pollinating agents.
Reason: $Cleistogamous$ flowers do not expose their sex organs.

Similar Questions

In which of the following is pollination by wind observed?

What is required for self-pollination (autogamy)?

Common floral rewards provided by plants to pollinators are:

Wind-pollinated flowers are characterized by:

Which of the following statements is true with reference to cross-pollination in angiosperms?

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Assertion: $Chasmogamous$ flowers require pollinating agents.Reason: $Cleistogamous$ flowers do not expose their sex organs.