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Questions and Answers
Which structure is responsible for the transfer of male gametes to the archegonium?
What is the term used to describe gymnosperms because their seeds remain exposed after fertilization?
What are microspores and megaspores produced in?
What are the male and female cones formed by?
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What does the zygote develop into after fertilization?
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Which class are angiosperms divided into?
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What is the primary function of the pollen tube?
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Where is the zygote formed after fertilization?
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What is the term used to describe gymnosperms because their ovules are not enclosed by any ovary wall?
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What does the zygote fuse with in the archegonium?
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Which of the following is a characteristic of algae?
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What are the three classes into which algae are classified based on their pigment and stored food?
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How do algae usually reproduce vegetatively?
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What is the main plant body of a bryophyte called?
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What are the male sex organs called in a bryophyte?
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What are the female sex organs called in a bryophyte?
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What is the main plant body of a pteridophyte called?
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What type of reproductive structure do pteridophytes produce?
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Where do gametophytes of pteridophytes prefer to grow?
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What type of plants are gymnosperms and angiosperms?
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Study Notes
Male Gamete Transfer
- The structure responsible for transferring male gametes to the archegonium is the pollen tube.
Gymnosperms
- Gymnosperms are referred to as "naked seed" plants because their seeds remain exposed after fertilization.
- They are also described as having ovules that are not enclosed by any ovary wall.
Spores
- Microspores and megaspores are produced in the sporangia.
Cones
- Male cones are formed by microsporophylls, while female cones are formed by megasporophylls.
Zygote Development
- After fertilization, the zygote develops into an embryo.
Angiosperms Classification
- Angiosperms are divided into two classes: monocots and dicots.
Pollen Tube Function
- The primary function of the pollen tube is to facilitate the transfer of sperm cells to the ovule for fertilization.
Zygote Formation
- The zygote is formed in the archegonium after fertilization occurs.
Algae Characteristics
- A characteristic of algae includes their ability to perform photosynthesis and live in aquatic environments.
Algae Classification
- Algae are classified into three main classes based on pigment and stored food: green algae (Chlorophyta), brown algae (Phaeophyceae), and red algae (Rhodophyta).
Algae Reproduction
- Algae typically reproduce vegetatively through fragmentation or asexual reproduction methods like binary fission.
Bryophyte Structure
- The main plant body of a bryophyte is called the gametophyte.
- Male sex organs in a bryophyte are called antheridia, while female sex organs are referred to as archegonia.
Pteridophyte Structure
- The main plant body of a pteridophyte is called the sporophyte.
- Pteridophytes produce reproductive structures known as sporangia.
Gametophyte Habitat
- Gametophytes of pteridophytes prefer to grow in moist environments.
Plant Types
- Gymnosperms and angiosperms are classified as seed-producing plants.
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Description
Test your knowledge of the diverse world of algae and their classification in this quiz. Explore the different classes of algae, their characteristics, and reproductive methods. Challenge yourself and see how well you understand the fascinating world of these chlorophyll-bearing organisms.
