Pollination and its agents — NEET & JEE Questions

Question 1 · difficulty L1 · recall

Pollination is the transfer of pollen grains from the anther to the

• A. stigma
• B. ovary
• C. ovule
• D. sepal

Question 2 · difficulty L2 · understanding

Autogamy refers to pollen transfer

• A. from anther to stigma of the same flower
• B. between flowers of different species
• C. only by insects
• D. only from one plant to another

Question 3 · difficulty L2 · understanding

Geitonogamy involves pollen transfer between

• A. different flowers of the same plant
• B. anther and stigma of the same flower only
• C. flowers of different species
• D. only wind-pollinated plants

Question 4 · difficulty L2 · understanding

Xenogamy transfers pollen between flowers on

• A. different plants of the same species
• B. the same flower
• C. the same plant only
• D. different species only

Question 5 · difficulty L3 · understanding

Which one of the following types of pollination brings genetically different types of pollen grains to the stigma?

• A. Autogamy
• B. Xenogamy
• C. Geitonogamy
• D. Cleistogamy

Question 6 · difficulty L3 · understanding

Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Both wind and water pollinated flowers are not very colourful and do not produce nectar. Reason (R) : The flowers produce enormous amount of pollen grains in wind and water pollinated flowers. In the light of the above statements, choose the correct answer from the options given below:

• A. $\mathbf{A}$ is true but $\mathbf{R}$ is false
• B. $\mathbf{A}$ is false but $\mathbf{R}$ is true
• C. Both $\mathbf{A}$ and $\mathbf{R}$ are true and $\mathbf{R}$ is the correct explanation of $\mathbf{A}$
• D. Both $\mathbf{A}$ and $\mathbf{R}$ are true but $\mathbf{R}$ is NOT the correct explanation of $\mathbf{A}$

Question 7 · difficulty L3 · understanding

Given below are two statements : Statement I : Fig fruit is a non-vegetarian fruit as it has enclosed fig wasps in it. Statement II : Fig wasp and fig tree exhibit mutual relationship as fig wasp completes its life cycle in fig fruit and fig fruit gets pollinated by fig wasp. In the light of the above statements, choose the most appropriate answer from the options given below:

• A. Statement I is correct but statement II is incorrect
• B. Statement I is incorrect but statement II is correct
• C. Both statement I and statement II are correct
• D. Both statement I and statement II are incorrect

Question 8 · difficulty L3 · understanding

Identify the set of correct statements: A. The flowers of Vallisneria are colourful and produce nectar. B. The flowers of water lily are not pollinated by water. C. In most of water-pollinated species, the pollen grains are protected from wetting. D. Pollen grains of some hydrophytes are long and ribbon like. E. In some hydrophytes, the pollen grains are carried passively inside water. Choose the correct answer from the options given below.

• A. C, D and E only
• B. A, B, C and D only
• C. A, C, D and E only
• D. B, C, D and E only

Question 9 · difficulty L3 · understanding

Identify the correct description about the given figure :

• A. Wind pollinated plant inflorescence showing flowers with well exposed stamens.
• B. Water pollinated flowers showing stamens with mucilaginous covering.
• C. Cleistogamous flowers showing autogamy.
• D. Compact inflorescence showing complete autogamy

Question 10 · difficulty L3 · understanding

In which of the following sets of families, the pollen grains are viable for months?

• A. Solanaceae, Poaceae and Liliaceae
• B. Brassicaceae, Liliaceae and Poaceae
• C. Rosaceae, Liliaceae and Poaceae
• D. Leguminosae, Solanaceae and Rosaceae