The Cell Nucleus is covered by a double membrane, called a Nuclear Envelope. This envelope helps maintain the shape of the nucleus.
Molecules travel in and out of the Nucleus through the Nuclear pores, and the Nuclear Envelope helps assist the flow of molecules.
Nuclear envelope & Nuclear pores
The Golgi Apparatus is a packaging organelle. Simple molecules are collected in the Golgi Apparatus and made into more complex molecules. Then they are stored in vesicles and then stored away or used in the cell.
The Lysosomes digest things and stores enzymes in the cell. A lysosome is proteins created in the ER, which is then sent to the Golgi Apparatus to packed into a digestive enzyme. A small, specific vesicle is cut off and that vesicle is a lysosome.
Packaging and Distribution of Proteins
Structures of Plant Cells
A plant cell and an animal cell has the same structure, except for 3 extra organelles that the plant cells has.
A Cell Wall is a structural layer outside the cell membrane, and it provides extra protection for the cell.
Chloroplasts' main role in a plant cell is to conduct photosynthesis, which is why is it is only found in plant cells.
The Central Vacuole helps in plant growth, and plays an important role in the plant structure.