![Pollen tube pathway to the embryo sac. Redrawn with permission from Qu... | Download Scientific Diagram Pollen tube pathway to the embryo sac. Redrawn with permission from Qu... | Download Scientific Diagram](https://www.researchgate.net/publication/320288912/figure/fig3/AS:554247999111169@1509154428340/Pollen-tube-pathway-to-the-embryo-sac-Redrawn-with-permission-from-Qu-et-al-2015-to.png)
Pollen tube pathway to the embryo sac. Redrawn with permission from Qu... | Download Scientific Diagram
![What is true of wall of pollen sac?Endothecium occurs inner to tapetumTapetum lies below the endotheciumMiddle layers occur below the epidermis and outside the tapetumMiddle layers lie between endothecium and tapetum What is true of wall of pollen sac?Endothecium occurs inner to tapetumTapetum lies below the endotheciumMiddle layers occur below the epidermis and outside the tapetumMiddle layers lie between endothecium and tapetum](https://search-static.byjusweb.com/question-images/toppr_ext/questions/796271_682437_ans_8afafde9328e487a8e65e8fcbbb457d9.jpg)
What is true of wall of pollen sac?Endothecium occurs inner to tapetumTapetum lies below the endotheciumMiddle layers occur below the epidermis and outside the tapetumMiddle layers lie between endothecium and tapetum
![In a dithecous anther, each pollen sac contains 1000 MMC. What is the total number of pollen grain produced by the anther? In a dithecous anther, each pollen sac contains 1000 MMC. What is the total number of pollen grain produced by the anther?](https://www.vedantu.com/question-sets/df42f4f1-d117-47bb-bbff-bc2b2eebed302519743827491986061.png)
In a dithecous anther, each pollen sac contains 1000 MMC. What is the total number of pollen grain produced by the anther?
![Botany of the living plant. Botany. THE STAMEN AND POLLEN-SAC 247 drying as the anther ripens is that their thin outer waUs shrinlc, while the thick inner wall retains its form. Botany of the living plant. Botany. THE STAMEN AND POLLEN-SAC 247 drying as the anther ripens is that their thin outer waUs shrinlc, while the thick inner wall retains its form.](https://c8.alamy.com/comp/RDY80X/botany-of-the-living-plant-botany-the-stamen-and-pollen-sac-247-drying-as-the-anther-ripens-is-that-their-thin-outer-waus-shrinlc-while-the-thick-inner-wall-retains-its-form-the-result-of-the-shrinkage-of-the-outer-side-of-the-fibrous-layer-will-naturally-be-to-reduce-the-curvature-of-the-convex-sporangia!-wall-and-the-slit-gapes-widely-tig-192-b-the-dusty-pollen-grains-are-then-readily-removed-there-are-various-differfences-in-detail-of-the-dehiscence-of-anthers-particularly-in-highly-specialised-flowers-but-in-all-ordinary-flowers-where-the-pollen-is-dry-and-powdery-the-way-i-RDY80X.jpg)
Botany of the living plant. Botany. THE STAMEN AND POLLEN-SAC 247 drying as the anther ripens is that their thin outer waUs shrinlc, while the thick inner wall retains its form.
![Athrotaxites yumenensis sp. nov. Pollen sacs and pollen grains light... | Download Scientific Diagram Athrotaxites yumenensis sp. nov. Pollen sacs and pollen grains light... | Download Scientific Diagram](https://www.researchgate.net/publication/259120489/figure/fig8/AS:631596617068559@1527595776559/Athrotaxites-yumenensis-sp-nov-Pollen-sacs-and-pollen-grains-light-micrographs-39.png)