Pollination

Q.

The non-motile male and female gametes produced in flowering plants are brought together for fertilisation by a mechanism called __________.

1. Parthenogenesis

2. Syngamy

3. Pollination

4. Apomixis

Q.

Cross pollination can induce

1. Diseases in plants

2. Variation in plants

3. Non viable seeds in plants

4. None of the above

Q.

Pollination occurs in

1. Conifers

2. Ferns

3. Flowering plants

4. Fungi

Q.

Both autogamy and geitonogamy are prevented in:

1. Castor

2. Maize

3. Papaya

4. Cucumber

Q.

Wind pollinated flowers are:

1. small, brightly coloured, producing a large number of pollen grains

2. large producing abundant nectar and pollen

3. small, producing nectar and dry pollen

4. small, producing large number of dry pollen grains

Q.

Which one of the following statements in not true?

1. Pollen grains of some plants cause severe allergies and bronchial afflictions in some people

2. Honey is made by bees by digesting pollen collected from flowers

3. The flowers pollinated by flies and bats secrete foul odour to attract them

4. Pollen grains are rich in nutrients, and they are used in the form of tablets and syrups

Q. During pollination, the pollen grains get carried to the _______ of a carpel.

1. stamen
2. stigma
3. ovary
4. filament

Q. During pollination, pollen grains get carried to of the carpel.

1. stamen
2. stigma
3. ovary
4. filament

Q.

In which of the following scenarios, pollination will lead to fertilisation?

1. Pollen grains of pumpkin flower falls on the stigma of a pumpkin flower

2. Pollen grains of an ash gourd flower falls on the stigma of another ash gourd flower

3. Pollen grains of ash gourd flower falls on the stigma of a pumpkin flower

4. Pollen grains of pumpkin flower falls on the stigma of an ash gourd flower

Q. Match the following columns and choose the correct option.
$\begin{array}{cc}\text{Column 1}& \text{Column 2}\\ \text{A. Autogamy}& \text{i. Transfer of pollen grains from anther}\\ & \text{to the stigma of a different plant.}\\ \text{B. Xenogamy}& \text{ii. Transfer of pollen grains from the anther to}\\ & \text{the stigma of another flower of the same plant.}\\ \text{C. Geitonogamy}& \text{iii. Transfer of pollen grains from the}\\ & \text{anther to the stigma of the same flower.}\end{array}$

1. A-i, B-ii, C-iii
2. A-iii, B-i, C-ii
3. A-iii, B-ii, C-i
4. A-ii, B-iii, C-i