levels of organisation Flashcards
multicellular organisms are like
animals and plants
multicellular =
made of millions/billions of cells that carry out processes needed for life
cells are
the smallest functional unit of life
cells contain a number of o_________
organelles
organelles are
structures that carry out specific processes the cell needs to survive
there are different types of cells for different jobs which are called
specialised cells
tissues are
groups of similar cells
that work together to carry out the same function
an example of tissue in humans is
muscle tissue
organs are made up of
several different tissues
working together to carry out a more complex function
an example of an organ in a human is
the heart
(muscle is one of the tissues making up the heart)
organ systems are made up of
several different organs working together to carry out a complex function essential to life
e.g. circulating blood around the body
organelle ->
cell
cell ->
tissue
tissue ->
organ
organ ->
organ system