Seed Dispersal in Plants

Play an AI-generated podcast conversation about this lesson

What reproductive parts make up a pistil?

Anther, filament, and ovule

Anther, stigma, and style

Filament, ovary, and anther

Stigma, style, and ovary (correct)

What is the function of an anther in a flower?

Contains pollen grains which produce male gametes (correct)

Receives pollen from insects

Protects the ovule

Supports the stigma

What is the term for the transfer of pollen from the anther to the stigma of a flower?

Pollination (correct)

Fertilization

Germination

Photosynthesis

In which type of flowers are both male and female reproductive structures present?

Bisexual flowers (B) Signup and view all the answers

Why are flowers generally colorful and fragrant according to the text?

To attract insects for pollination (B) Signup and view all the answers

What is the process of transfer of pollen grains from the anther to the stigma of a flower called?

Pollination (C) Signup and view all the answers

What is the process called when a male and a female gamete fuse to form a zygote?

Fertilization (B) Signup and view all the answers

In which type of reproduction do new plants grow from different vegetative parts like leaves, stems, or roots?

Asexual reproduction (D) Signup and view all the answers

What part of a plant contains the male gametes?

Pollen grain (B) Signup and view all the answers

Which type of flower possesses both male and female reproductive parts?

Bisexual flower (D) Signup and view all the answers

From which part of a plant does a new plant arise in vegetative propagation?

Leaf (A) Signup and view all the answers

Where are female gametes found in a plant?

Ovule (D) Signup and view all the answers

Why is seed dispersal important for plants?

To prevent competition between the plant and its own seedlings (D) Signup and view all the answers

Which type of seeds get blown off to far away places by the wind?

Winged seeds like those of drumstick and maple (C) Signup and view all the answers

How are some seeds dispersed by water?

By developing floating ability in the outer coat (C) Signup and view all the answers

Which plants disperse their seeds by bursting their fruits with sudden jerks?

Castor and balsam (D) Signup and view all the answers

Why do some seeds have spiny hooks for dispersal?

To get attached to animals and be carried to distant places (A) Signup and view all the answers

What is the purpose of hairy fruit in seed dispersal?

To provide protection from predators (B) Signup and view all the answers

What is it called when the pollen of a flower lands on the stigma of a flower of a different plant of the same kind?

Cross-pollination (C) Signup and view all the answers

What is the cell called that results after the fusion of gametes?

Zygote (C) Signup and view all the answers

What is the process of fusion of male and female gametes to form a zygote called?

Fertilisation (A) Signup and view all the answers

What part of the flower grows into a fruit after fertilisation?

Ovary (A) Signup and view all the answers

Where do the seeds develop from?

Ovules (C) Signup and view all the answers

What would happen if all seeds of a plant were to fall at the same place and grow there, according to the text?

Severe competition for sunlight, water, minerals, and space (A) Signup and view all the answers

What is the main difference between self-pollination and cross-pollination?

Self-pollination involves the transfer of pollen within the same flower or between flowers of the same plant, while cross-pollination involves the transfer of pollen between flowers of different plants. (A) Signup and view all the answers

How does fertilisation take place in flowers?

Fertilisation occurs when the pollen grains land on the stigma of a flower and a pollen tube grows down to the ovary to deliver the male gametes to the female gametes. (A) Signup and view all the answers

Seed Dispersal in Plants

Choose a study mode

Podcast

Questions and Answers