Biology- Cell organisation

The basic building blocks that make up all living organisms

What are cells?

Why are cells specialised?

To carey out a particular function

What is differentiation?

The process by which cells become specialised for a particular job

When does differentation occur?

During the development of a multicellular organism

How do these cells transport materials?

Cells → tissue → organs → organ system

What organisms have a different system for exchanging and transporting materials?

Large multicellular organisms

What is a tissue?

A group of similar cells that work together to carry out a particular function, which can include more than one type of cell

Whats the function of a muscular tissue? (In humans)

Contract to mi

Contracts to move whatever its attached to

Whats the function of a glandular tissue? (In humans)

Makes and secrets chrmicals like enzymes and hormones

Whats the function of the epithelial tissue? (In humans)

Covers some part of the body, eg. inside the gut

What is an organ?

A group of different tissues that work together to perform a particular tissue

Whats the function of a muscular tissue? (Stomach)

Moves the stomach wall to churn up food

Whats the function of a glandular tissue? (Stomach)

Makes digestive juices to digest food

Whats the function of the epithelial tissue? (Stomach)

Covers the outside and inside of the stomach

What is an organ system?

A group of organs working together to perform a particular function

What is the function of the glands? (Digestive system)

Produce digestive juices

What is the function of the stomach and small intenstine? (Digestive system)

Digest food

What is the function of the liver? (Digestive system)

Produces bile

What is the function of the small intestine? (Digestive system)

Absorb soluble food molecules

What is the function of the large intenstine? (Digestive systems)

Absorb water from undigested food leaving faces