Biology Cell Specialization

Learning goals We are learning the difference between cell specialization and cell differentiation. We are learning the structure and function of various specialized cells.

The Process Cell theory states that all cells come from previously existing cells All cells in an organism contain the same DNA but are not all alike.

Cells Cells develop in different ways to perform particular functions in a process called cell differentiation. Cell specialization – cells have different structures and abilities that allow them to perform different functions efficiently

Red blood cells Contain hemoglobin that carries oxygen in blood Are smooth so that they can easily pass through the blood

White blood cells Can move like an amoeba to engulf bacteria and fight infection

Skin cells Fit together tightly to cover the outside of the body Protect the cells inside and reduce water loss

Bone cells Collect calcium from food Allow the growth and repair of bones

Muscle cells Are arranged in bundles called muscle fibres Can contract which makes the fibres shorter and causes bones to move

Fat cells Have a large vacuole in which to store fat molecules How cells store chemical energy

Nerve cells Are long, thin and have many branches Conduct electrical impulses to coordinate body activity

Learning goals We are learning the difference between cell specialization and cell differentiation. We are learning the structure and function of various specialized cells.

Your turn Lab View a muscle cell, blood cell, epithelial and bone cell Make biological drawing of each Identify features of cell that aid with what it is specialized for