Questions and Answers
Which of the following contains multiple gymnosperm ovules?
Which of the following is found inside a pollen grain?
What are the main components of a mature gymnosperm seed?
Embryo, seed coat, food supply
The embryo is?
Signup and view all the answers
The gametophyte generation is?
Signup and view all the answers
The sporophyte generation is?
Signup and view all the answers
The megaspore is?
Signup and view all the answers
After fertilization of the ovule, the _______ develops into the food supply of the mature seed.
Signup and view all the answers
After fertilization of the ovule, the _______ develops into the seed coat.
Signup and view all the answers
After fertilization of the ovule, the ________ develops into the embryo of the mature seed.
Signup and view all the answers
Ovules are housed within?
Signup and view all the answers
The male gametophytes of flowering plants are also referred to as _____?
Signup and view all the answers
Which of these is unique to flowering plants?
Signup and view all the answers
In flowering plants the integuments of the ovule develop into a(n) _____?
Signup and view all the answers
A carpel is composed of _____?
Signup and view all the answers
A stamen consists of _____?
Signup and view all the answers
In angiosperms, pollination is the transfer of pollen grain to the _____ of a flower on the same plant or another plant of the same species.
Signup and view all the answers
Study Notes
Gymnosperm Reproductive Structures
- Ovulate cones contain multiple ovules and mature into gymnosperm cones once ovules become seeds.
- The male gametophyte is housed within pollen grains, initiating fertilization upon pollination of the ovule.
Seed Structure and Development
- Mature gymnosperm seeds comprise an embryo, seed coat, and food supply, providing nourishment and protection for the sporophyte generation.
- The embryo and sporophyte generation are both diploid, while the gametophyte generation is haploid.
Reproductive Cells
- The megaspore is a haploid structure that develops into the food supply after fertilization.
- The integument, surrounding the ovule, transforms into the seed coat post-fertilization.
- The fertilized egg, after ovule fertilization, evolves into the embryo of the mature seed.
Flowering Plant Features
- Ovules are located within ovaries.
- Male gametophytes in flowering plants are referred to as pollen grains.
- Double fertilization is a process unique to flowering plants, where two sperm nuclei fertilize different cells.
Floral Structures
- The integuments of the ovule give rise to the seed coat in flowering plants.
- A carpel is made up of the stigma, style, and ovary.
- A stamen consists of an anther and filament, contributing to pollen production.
Pollination Process
- In angiosperms, pollination occurs when pollen grains are transferred to the stigma of a flower, which can be on the same or a different plant of the same species.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge on plant diversity with this quiz focused on gymnosperms. Learn about ovulate cones and male gametophytes through flashcards that highlight key concepts. Perfect for biology students aiming to enhance their understanding of plant reproductive structures.
