Podcast
Questions and Answers
How many divisions occur during the formation of the embryo sac from a single haploid cell?
How many divisions occur during the formation of the embryo sac from a single haploid cell?
What is the ploidy of the cells produced after meiosis in the ovule?
What is the ploidy of the cells produced after meiosis in the ovule?
Which of the following is an advantage of direct pollination?
Which of the following is an advantage of direct pollination?
What is the main component of the pistil that contains the ovule?
What is the main component of the pistil that contains the ovule?
Signup and view all the answers
Study Notes
Reproduction
- Pistils are composed of stigmas, styles, and ovaries containing one or more ovules.
- Ovules undergo meiosis, producing four haploid cells.
- One haploid cell undergoes three maturation divisions to form the embryo sac, containing the egg (oosphere) and polar nuclei.
- Pollen grains must be transferred to the stigma for pollination.
- Direct pollination occurs when pollen grains from one plant land on the stigma of the same plant.
- Indirect pollination occurs between different plants
- Agents of direct pollination include wind and gravity.
- Direct pollination can lead to less diverse offspring and higher risk of degeneration.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge on the mechanisms of plant pollination and the formation of the embryo sac. This quiz covers essential concepts regarding pollination agents, ploidy levels, and the anatomy of the pistil. Ideal for students studying plant biology and reproductive processes.
