Why are humans different shapes and sizes?
Every living thing is different (More or less)
Cells are different shapes and sizes because they have different functions. The functions dictate the shapes and sizes.
The size of the membrane pores depend on the proteins constituting the pore, thus different proteins may cause different pore sizes. So in most cases, yes, the "pores" will most likely be of different sizes.
Size and shape are directly related to structure and function of said cell. Also, for example, plant cells are often in rectangles as they have cell walls where as animal cells are often 'blobby' because they have a cell wall and no cell membrane
cell are the basic building block of an organism .they are present every where in body.cells are different in shapes and size because they have to perform there functions accordingly where they are present.
Cells have different shapes and sizes to fulfill specific functions within an organism. The shape and size of a cell determine its ability to perform certain tasks, such as movement, absorption, or secretion. This diversity allows for the efficient functioning of different tissues and organs in multicellular organisms.
The Cell Wall
Plant cells usually have a fixed shape while animal cells usually have an irregular shape. Plants do not have bones unlike animals and thus have a cellulose cell wall to cause the cell to have a fixed shape. Thus, cell shapes are different for each cell.
In an animal the structure and support of the being doesn't depend on the strength of each cell but in a plant cell the structure depends on the strength and rigidity of the cell. Therefore, the plant cell has the regular shapes.
cell membrane and cell wall
Elodea is a plant cell that contains a cell wall, chloroplasts for photosynthesis, and a large central vacuole. Tomato cells are also plant cells and share similar features but may have different shapes, sizes, and functions depending on their specific location within the tomato plant. Additionally, tomato cells may contain different pigments, such as lycopene, that give tomatoes their red color.
Why do you think the openings in cell membranes are different sizes?
Their different shapes help them to perform their various functions (jobs)