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Please label the structure

Please label the structure

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Please label the structure
### Worksheet 32.2: Equisetum **Illustration Descriptions:** **A. Vegetative Shoot** - This diagram depicts the vegetative shoot of Equisetum, commonly known as horsetail. The shoot is characterized by numerous nodes and internodes. Branches extend from each node, giving the plant a brush-like appearance. **B. Fertile Shoot** - Illustrated here is the fertile shoot of Equisetum. Notice the distinct strobilus (cone-like structure) at the top which is responsible for spore production. The shoot also features whorled structures extending from nodes, similar to the vegetative shoot but dedicated to reproduction. **C. Sporangiophore** - This image shows a closer view of the sporangiophore, the structure within the strobili where spores are produced. It appears as an elongated capsule with multiple compartments, each containing spores. **D. Spore with Elaters** - The diagram focuses on a spore of Equisetum, showcasing the presence of elaters. Elaters are ribbon-like appendages that aid in the dispersal of spores. The labeled parts include the spore and the elater. These diagrams provide a comprehensive visual understanding of the morphology and reproductive structures of Equisetum, aiding in the study of this fascinating plant.
Transcribed Image Text:### Worksheet 32.2: Equisetum **Illustration Descriptions:** **A. Vegetative Shoot** - This diagram depicts the vegetative shoot of Equisetum, commonly known as horsetail. The shoot is characterized by numerous nodes and internodes. Branches extend from each node, giving the plant a brush-like appearance. **B. Fertile Shoot** - Illustrated here is the fertile shoot of Equisetum. Notice the distinct strobilus (cone-like structure) at the top which is responsible for spore production. The shoot also features whorled structures extending from nodes, similar to the vegetative shoot but dedicated to reproduction. **C. Sporangiophore** - This image shows a closer view of the sporangiophore, the structure within the strobili where spores are produced. It appears as an elongated capsule with multiple compartments, each containing spores. **D. Spore with Elaters** - The diagram focuses on a spore of Equisetum, showcasing the presence of elaters. Elaters are ribbon-like appendages that aid in the dispersal of spores. The labeled parts include the spore and the elater. These diagrams provide a comprehensive visual understanding of the morphology and reproductive structures of Equisetum, aiding in the study of this fascinating plant.
### Lycopodium and Selaginella: Clubmoss and Spikemoss #### A. Lycopodium - **Description**: This diagram illustrates the structure of the Lycopodium plant, commonly referred to as clubmoss. The plant has a horizontal rhizome from which vertical shoots arise. #### B. Sporophyll (Lycopodium) - **Description**: A close-up view of a Lycopodium sporophyll, a specialized leaf that bears sporangia. #### C. Spore (Lycopodium) - **Description**: Illustration of a Lycopodium spore. Spores are the reproductive units capable of developing into a new organism. #### D. Selaginella - **Description**: This diagram shows the structure of the Selaginella plant, commonly known as spikemoss. #### E. Megasporophyll (Selaginella) - **Description**: A close-up view of a Selaginella megasporophyll, a leaf that bears megasporangia. #### F. Microsporophyll (Selaginella) - **Description**: A close-up view of a Selaginella microsporophyll, a leaf that bears microsporangia. #### G. Megaspore (Selaginella) - **Description**: Illustration of a Selaginella megaspore, a larger type of spore that will develop into a female gametophyte. #### H. Microspore (Selaginella) - **Description**: Illustration of a Selaginella microspore, a smaller type of spore that will develop into a male gametophyte. **Note**: Each diagram highlights a different part of the reproductive structures of these two plants, providing a detailed look at their morphology and reproductive strategies. The rhizome in Lycopodium is shown to be a key feature for vegetative reproduction and nutrient storage, while the differences between megasporophylls and microsporophylls in Selaginella illustrate the heterosporous nature of this plant.
Transcribed Image Text:### Lycopodium and Selaginella: Clubmoss and Spikemoss #### A. Lycopodium - **Description**: This diagram illustrates the structure of the Lycopodium plant, commonly referred to as clubmoss. The plant has a horizontal rhizome from which vertical shoots arise. #### B. Sporophyll (Lycopodium) - **Description**: A close-up view of a Lycopodium sporophyll, a specialized leaf that bears sporangia. #### C. Spore (Lycopodium) - **Description**: Illustration of a Lycopodium spore. Spores are the reproductive units capable of developing into a new organism. #### D. Selaginella - **Description**: This diagram shows the structure of the Selaginella plant, commonly known as spikemoss. #### E. Megasporophyll (Selaginella) - **Description**: A close-up view of a Selaginella megasporophyll, a leaf that bears megasporangia. #### F. Microsporophyll (Selaginella) - **Description**: A close-up view of a Selaginella microsporophyll, a leaf that bears microsporangia. #### G. Megaspore (Selaginella) - **Description**: Illustration of a Selaginella megaspore, a larger type of spore that will develop into a female gametophyte. #### H. Microspore (Selaginella) - **Description**: Illustration of a Selaginella microspore, a smaller type of spore that will develop into a male gametophyte. **Note**: Each diagram highlights a different part of the reproductive structures of these two plants, providing a detailed look at their morphology and reproductive strategies. The rhizome in Lycopodium is shown to be a key feature for vegetative reproduction and nutrient storage, while the differences between megasporophylls and microsporophylls in Selaginella illustrate the heterosporous nature of this plant.
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