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A typical anther is
(a) Tetrasporangiate
(b) Tetragonal
(c) Trilobed
(d) Surrounded by four wall layers
(a) Tetrasporangiate
(b) Tetragonal
(c) Trilobed
(d) Surrounded by four wall layers
- a)Only (a) and (d)
- b)Only (a), (b) and (d)
- c)Only (b) and (c)
- d)All (a), (b), (c) and (d)
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A typical anther is(a) Tetrasporangiate(b) Tetragonal(c) Trilobed(d) S...
(a) Tetrasporangiate: Correct. A typical anther has four pollen sacs or microsporangia.
(b) Tetragonal: Correct - The anther is a four-sided (tetragonal) structure consisting of four microsporangia located at the corners, two in each lobe.
(c) Trilobed: No, anthers are typically bilobed, not trilobed
(d) Surrounded by four wall layers: Correct. The anther is surrounded by four distinct wall layers: the epidermis, endothecium, middle layer, and tapetum.
Topic in NCERT: Anther Structure and Function
Line in NCERT: "A typical anther is bilobed, dithecous and tetrasporangiate. Four wall layers, the epidermis, endothecium, middle layers and the tapetum surround the microsporangium."
(b) Tetragonal: Correct - The anther is a four-sided (tetragonal) structure consisting of four microsporangia located at the corners, two in each lobe.
(c) Trilobed: No, anthers are typically bilobed, not trilobed
(d) Surrounded by four wall layers: Correct. The anther is surrounded by four distinct wall layers: the epidermis, endothecium, middle layer, and tapetum.
Topic in NCERT: Anther Structure and Function
Line in NCERT: "A typical anther is bilobed, dithecous and tetrasporangiate. Four wall layers, the epidermis, endothecium, middle layers and the tapetum surround the microsporangium."
Most Upvoted Answer
A typical anther is(a) Tetrasporangiate(b) Tetragonal(c) Trilobed(d) S...
Understanding the Structure of a Typical Anther
The typical anther is a crucial part of the stamen in flowering plants, responsible for pollen production. Let’s analyze the options provided to see why the correct answer is option 'B'.
Key Characteristics of a Typical Anther
- Tetrasporangiate:
- Most anthers contain four pollen sacs or microsporangia, making them tetrasporangiate. This is a defining feature of many flowering plants.
- Tetragonal:
- While many anthers exhibit a somewhat rectangular or tetragonal shape, this is not universally applicable to all anthers. Therefore, this characteristic is not essential to define a typical anther.
- Trilobed:
- Many anthers have a trilobed structure, meaning they are divided into three distinct parts or lobes. However, not all anthers display this feature.
- Surrounded by Four Wall Layers:
- A typical anther is indeed surrounded by four wall layers: the epidermis, endothecium, middle layer, and tapetum. This structural complexity is critical for pollen development.
Conclusion
Based on the analysis:
- The anther is definitively tetrasporangiate and surrounded by four wall layers, making options (a) and (d) true.
- Option (b) (tetragonal) may apply to many anthers, but it is not a universal characteristic.
- Option (c) (trilobed) applies to some but not all anthers.
Thus, the correct answer is option 'B', as it includes only (a), (b), and (d), while (c) is not necessarily applicable.
The typical anther is a crucial part of the stamen in flowering plants, responsible for pollen production. Let’s analyze the options provided to see why the correct answer is option 'B'.
Key Characteristics of a Typical Anther
- Tetrasporangiate:
- Most anthers contain four pollen sacs or microsporangia, making them tetrasporangiate. This is a defining feature of many flowering plants.
- Tetragonal:
- While many anthers exhibit a somewhat rectangular or tetragonal shape, this is not universally applicable to all anthers. Therefore, this characteristic is not essential to define a typical anther.
- Trilobed:
- Many anthers have a trilobed structure, meaning they are divided into three distinct parts or lobes. However, not all anthers display this feature.
- Surrounded by Four Wall Layers:
- A typical anther is indeed surrounded by four wall layers: the epidermis, endothecium, middle layer, and tapetum. This structural complexity is critical for pollen development.
Conclusion
Based on the analysis:
- The anther is definitively tetrasporangiate and surrounded by four wall layers, making options (a) and (d) true.
- Option (b) (tetragonal) may apply to many anthers, but it is not a universal characteristic.
- Option (c) (trilobed) applies to some but not all anthers.
Thus, the correct answer is option 'B', as it includes only (a), (b), and (d), while (c) is not necessarily applicable.
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A typical anther is(a) Tetrasporangiate(b) Tetragonal(c) Trilobed(d) Surrounded by four wall layersa)Only (a) and (d)b)Only (a), (b) and (d)c)Only (b) and (c)d)All (a), (b), (c) and (d)Correct answer is option 'B'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A typical anther is(a) Tetrasporangiate(b) Tetragonal(c) Trilobed(d) Surrounded by four wall layersa)Only (a) and (d)b)Only (a), (b) and (d)c)Only (b) and (c)d)All (a), (b), (c) and (d)Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A typical anther is(a) Tetrasporangiate(b) Tetragonal(c) Trilobed(d) Surrounded by four wall layersa)Only (a) and (d)b)Only (a), (b) and (d)c)Only (b) and (c)d)All (a), (b), (c) and (d)Correct answer is option 'B'. Can you explain this answer?.
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