Structural Organisation of Multicellular Organisms

Question 1

What is the hierarchal structure of multicellular organisms?

Answer 1

Organelles –> cells –> tissues –> organs –> organ systems –> organism

Question 2

What is the place of organelles in the hierarchal structure of multicellular organisms?

Answer 2

Organelles are sub units of cells that are specialised for a particular function with the cell, activity coordinated by the nucleus.

Question 3

What is the place of cells in the hierarchal structure of multicellular organisms?

Answer 3

Cells are the basic sub-unit of life. Many cells are specialised for a particular function.

Question 4

What is the place of tissues in the hierarchal structure of multicellular organisms?

Answer 4

Similar specialised cells are grouped into tissues (eg, heart muscles cells from cardiac muscle tissue.) They form organs.

Question 5

What is the place of organs in the hierarchal structure of multicellular organisms?

Answer 5

Made of several different tissues grouped together, organs perform a specific function. (eg. heart is made of muscle tissue, connective tissue and nerve tissue)

Question 6

What is the place of organ systems in the hierarchal structure of multicellular organisms?

Answer 6

Organs systems are responsible for a major bodily function, they work together to perform all the necessary functions of the organism.