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Pollination and External Agents Quiz

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Questions and Answers

What is the advantage of cleistogamous flowers?

They require pollinators for seed production

They are less attractive to pollinators

They produce assured seed-set even in the absence of pollinators (correct)

They produce fewer seeds compared to open flowers

In geitonogamy, the pollen grains are transferred from:

The anther to the stigma of a different species

The anther to the stigma of the same flower

The anther to the stigma of another flower on the same plant (correct)

The anther to the stigma of a different plant

Which type of pollination brings genetically different pollen grains to the stigma?

Autogamy

Xenogamy (correct)

Cleistogamy

Geitonogamy

Which of the following is an abiotic agent of pollination?

Wind Signup and view all the answers

Why do flowers produce an enormous amount of pollen compared to the number of ovules available for pollination?

To compensate for uncertainties and pollen loss in wind and water pollination Signup and view all the answers

Which of the following agents of pollination is biotic?

Animals Signup and view all the answers

What is the mechanism that allows flowering plants to achieve successful reproduction?

Pollination Signup and view all the answers

Which of the following statements about autogamy is true?

It is the transfer of pollen grains from the anther to the stigma of the same flower. Signup and view all the answers

Which of the following types of flowers are invariably autogamous?

Cleistogamous flowers Signup and view all the answers

What is the term used to describe the transfer of pollen grains from the anther to the stigma?

Pollination Signup and view all the answers

Which of the following plants produce both chasmogamous and cleistogamous flowers?

All of the above Signup and view all the answers

What is the main purpose of pollination in flowering plants?

To achieve successful reproduction Signup and view all the answers