Unit2: Sexual Reproduction in Plants

The two types of reproductive cells are called ________.

• zygote

• pollen

• stigma

• gametes

The process of fusion of the two types of reproductive cells is called _______.

• fertilization

• pollination

• zygote formation

• digestion

________ is the transfer of pollen grains from the ripe anther to the stigma of the same or another flower.

• Fusion

• Fermentation

• Pollination

• Production

The transfer of pollen grains to the stigma within the same flower or between flowers of the same plant is called ________.

• cross pollination

• self pollination

• insect pollination

• fertilization

Which of the following is not true about insect-pollinated flowers?

• Large and brightly- colored

• Nectar and scent is produced

• Pollen grains are dry

• Pollen grains are produced in less quantity

Small round structures, deposited on the insect’s body when it visits the flower to collect nectar is called _____.

• pollen

• gamete

• style

• stigma

The male gametes are usually ____in size but are produced in ____ number.

• smaller,large

• larger,small

• larger,large

• smaller,small

Germination of pollen grains takes place on _______.

• Style

• Stigma

• Pollen tubes

• ovule

___________ are the carriers of male gametes.

• Ovule

• Style

• Pollen tubes

• Stigma

Which one is not true for wind-pollinated flowers?

• Small and inconspicuous

• Nectar and scent is produced

• Pollen grains are dry

• Pollen grains are produced in large quantity