Seed Dispersal in Plants
30 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

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?

<p>Bisexual flowers (B)</p> Signup and view all the answers

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

<p>To attract insects for pollination (B)</p> 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?

<p>Pollination (C)</p> Signup and view all the answers

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

<p>Fertilization (B)</p> Signup and view all the answers

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

<p>Asexual reproduction (D)</p> Signup and view all the answers

What part of a plant contains the male gametes?

<p>Pollen grain (B)</p> Signup and view all the answers

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

<p>Bisexual flower (D)</p> Signup and view all the answers

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

<p>Leaf (A)</p> Signup and view all the answers

Where are female gametes found in a plant?

<p>Ovule (D)</p> Signup and view all the answers

Why is seed dispersal important for plants?

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

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

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

How are some seeds dispersed by water?

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

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

<p>Castor and balsam (D)</p> Signup and view all the answers

Why do some seeds have spiny hooks for dispersal?

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

What is the purpose of hairy fruit in seed dispersal?

<p>To provide protection from predators (B)</p> 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?

<p>Cross-pollination (C)</p> Signup and view all the answers

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

<p>Zygote (C)</p> Signup and view all the answers

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

<p>Fertilisation (A)</p> Signup and view all the answers

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

<p>Ovary (A)</p> Signup and view all the answers

Where do the seeds develop from?

<p>Ovules (C)</p> 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?

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

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

<p>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)</p> Signup and view all the answers

How does fertilisation take place in flowers?

<p>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)</p> Signup and view all the answers

Which of the following is a method for seed dispersal?

<p>Gravity (B)</p> Signup and view all the answers

What is the reproductive part of a plant?

<p>Flower (D)</p> Signup and view all the answers

What does the mature ovary form in a flower?

<p>Fruit (C)</p> Signup and view all the answers

How can Bryophyllum reproduce?

<p>Through its leaves (D)</p> Signup and view all the answers
Use Quizgecko on...
Browser
Browser