Answer:
They are called Stomatas.
Explanation:
A waxy cuticle covers all aerial surfaces of land plants to minimize water loss. These leaf layers are clearly visible in the scanning electron micrograph. The numerous small bumps in the palisade parenchyma cells are chloroplasts.
You can find this information here: https://courses.lumenlearning.com/wmopen-biology2/chapter/plant-structures/#:~:text=Stomata%20on%20the%20leaf%20underside,palisade%20parenchyma%20cells%20are%20chloroplasts.
A macromolecule is a large molecule containing many atoms. The four type are carbohydrates, lipids, proteins, and nucleus acids.
The answer is : linea aspera
<span>synthesis in rough endoplasmic reticulum
packed, processed in golgi apparatus and exported in vesicles via exocytosis</span>
