Podcast
Questions and Answers
If an anther's tapetum layer is damaged, which process would be directly affected?
If an anther's tapetum layer is damaged, which process would be directly affected?
- Development of the endothecium
- Formation of the epidermis
- Nutrition of pollen grains (correct)
- Differentiation of connective tissues
How would you describe the role of the epidermis in the structure of the anther?
How would you describe the role of the epidermis in the structure of the anther?
- A protective outer layer composed of a single layer of cells. (correct)
- A nutritive layer that fuels pollen development.
- The innermost layer that directly surrounds the pollen sacs.
- Tissue responsible for the dehiscence of the anther.
In a developing anther, what distinguishes the microsporangium from the other layers?
In a developing anther, what distinguishes the microsporangium from the other layers?
- It is characterized by 2 to 3 layers of cells.
- It contains connective tissues and pollen grains. (correct)
- It directly nourishes the surrounding tissues of the pollen grains.
- It is the outermost layer providing physical protection.
How does the transition from a young to a mature anther affect the meristematic tissue?
How does the transition from a young to a mature anther affect the meristematic tissue?
If the endothecium layer of an anther failed to develop properly, what might be the most direct consequence?
If the endothecium layer of an anther failed to develop properly, what might be the most direct consequence?
Flashcards
Epidermis (Anther)
Epidermis (Anther)
The outer, single-layered protective covering of the anther.
Endothecium (Anther)
Endothecium (Anther)
A layer of cells (2-3) beneath the epidermis in some anthers.
Middle Layer (Anther)
Middle Layer (Anther)
Layer(s) of cells between the endothecium and tapetum in the anther wall.
Tapetum
Tapetum
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Microsporangium
Microsporangium
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Study Notes
- Androecium describes the structure of anther with a labelled diagram
Structure of Anther
- The T.S of a young anther shows a homogeneous mass
- It is meristematic and covered by the epidermis
- Epidermis forms the outer, single-layered wall of the anther
Anther Wall Layers
- Endodermis / Endothecium is present just below the epidermis and is made up of tissue
- Middle layer is present below the endothecium and is 2 to 3 celled thick
- Tapetum is present just outside the pollen chamber
- Tapetum provides nutrition to pollen grains
- Microsporangium is present on the inner side of the tapeptum
- Microsporangium contains a large number of pollen grains and connective tissues
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Description
Explanation of the androecium, focusing on the structure and layers of the anther. Includes the epidermis, endothecium, middle layer, tapetum, and microsporangium. Details the function of the tapetum in nourishing pollen grains.
