Organelles.
Organelles. These membrane-bound compartments have distinctive shapes and functions within the cell. Examples include the nucleus, mitochondria, and endoplasmic reticulum.
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.
Bowman's layer overlies the cornea.
Cells. Each living organism is composed of cells, which are the fundamental units of life. Cells come in different shapes and sizes, and they perform various functions necessary for the organism to survive.
Numbers acquired their distinctive shapes and forms through a process of evolution and cultural influence over time. Different civilizations and cultures developed their own unique symbols and systems for representing numbers, which eventually evolved into the familiar shapes and forms we use today.
To perform different functions plant cells assume different shapes
Amoeba
cell membrane and cell wall
Their different shapes help them to perform their various functions (jobs)
You can cut pictures into shapes on the computer by using Photoshop. Use the "crop" and "trim" functions in Photoshop.
In an animal (and human) cell, the cell membrane gives it its shape. And in a plant cell, both a cell membrane and cell wall give it its shape and protects it