Animal, plants and fungi made of more than one cell.

Cells with adaptations to carry out a particular function in a multicellular organism.

Cell with no specific function, but has the capability to turn into different types of cells.

The process of an unspecialised cell becoming a specialised one through the mechanism of turning genes on and off.

A short section of DNA that carries the genetic code to produce a protein.

Specialised cells, unspecialised cells and differentiation

Biology

Stem cells in animals

Meristem cells in plants

Using stem cells in medicine: potential benefits, risks and ethical issues

Pupils will learn about the roles of hormones in human reproduction, including control of the menstrual cycle, and other uses of hormones such as in in contraception.

Pupils learned about growth through cell division, mitosis as part of the cell cycle, cancer as the result of changes in cells that lead to uncontrolled growth and division, and the formation of gametes by meiosis.

This unit explores the function of stem cells and the importance of cell differentiation. It discusses the benefits and risks of stem cell use in medicine, evaluates applications of science, and considers the personal, social, economic, and environmental implications of scientific decisions.

Stem cells and differentiation

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

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

Lots of mitochondria to provide energy for movement.

Lots of mitochondria to provide energy for contraction.

Folded membrane to increase surface area for absorption.

Gaps in the cell wall to allow sugars to be transported.

Match the cell to its specialised feature.

True or false? 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?

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

How is DNA stored in plant and animal cells?

Which of these organisms are multicellular?

Put these in order of size starting with the smallest.

What is the process by which cells divide to produce identical cells?

A short section of DNA that carries proteins.

A short section of DNA that carries the genetic code.

A short section of DNA that carries amino acids.

Specialised cells, unspecialised cells and differentiation

Lesson outcome