Specialised cells, unspecialised cells and differentiation | Exit Quiz | Oak National Academy

True or false? Most cells are adapted to their function.

• true

• false

Answer explanation

Most cells have features that make them specialised; they are adapted for their role.

What is the name of the process by which unspecialised cells become specialised?

• meiosis

• differentiation

• mitosis

Answer explanation

Differentiation is the process where cells become specialised for a particular function.

True or false? If a protein is not needed by a cell then the gene that codes for it can be turned off.

• true

• false

Answer explanation

Only the parts of the genome that are needed to make a particular protein are used. If a protein is not needed by a cell then the gene that codes for it can be turned off.

How do multicellular organisms grow and develop?

• mitosis

• differentiation

• transcription

• meiosis

Answer explanation

Multicellular organisms grow (make new cells by mitosis) and develop (make specialised cells to form tissues/organs).

Put the level of organisation in the correct order starting with the smallest.

• organism

• organ

• tissue

• specialised cell

• organ system

Answer explanation

Specialised cells form a tissue e.g. muscle tissue; different tissues form organs e.g. stomach is made of glandular tissue and muscle tissue; groups of organs form organ systems e.g. digestive system; organ systems make up an organism.