3
Question
A disc-shaped thickening present on the pit membrane is
A disc-shaped thickening present on the pit membrane is
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Solution
The correct option is B Torus
- A disc-shaped thickening present on the pit membrane is torus.
- In gymnosperms, the pit membrane forms a thickened circular or disc-shaped structure known as a torus.
- They are made up of primary cell wall materials and are larger in diameter than a pit aperture.
- The torus is surrounded by a structure called margo, both of them act as valves.
- So, the correct answer is 'Torus'.
- A disc-shaped thickening present on the pit membrane is torus.
- In gymnosperms, the pit membrane forms a thickened circular or disc-shaped structure known as a torus.
- They are made up of primary cell wall materials and are larger in diameter than a pit aperture.
- The torus is surrounded by a structure called margo, both of them act as valves.
- So, the correct answer is 'Torus'.
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