Different types of organisms Flashcards
what are unicellular organisms?
organisms made from one cell that are capable of carrying out all functions required by organism
unicellular organisms must have mechanisms for all functions to carry out, e.g ____, ____
digestion of food, elimination of waste
examples of unicellular organisms?
bacteria, archaea, protozoa, some fungi
general characteristics:
- generalised cells + ____ structures such as ___ and flagellas for ___
live in mostly ___ or ___ environments
generally ___ in size
specialised, cilia, movement
aquatic or damp
size
what are colonial organisms?
in between unicellular and multicellular organisms.. many unicellular organisms come together to make a colony, each with a specific duty to benefit the whole colony
colonial organisms behave as ____ organisms that are ____
multicellular, unicellular
if a cell breaks of colonial organism, could it survive?
yes!
examples of colonial organisms?
coral, sponges, some cyanobacteria
what are multicellular organisms?
large numbers of highly specialised cells that each carry out a special function for whole organism
in multicellular organisms.. specialisation ___ the efficiency of function and allows for a ____ complex multicellular organism
increases, highly
if a cell breaks of multicellular organism, could it survive?
no
examples of multicellular organisms?
plants+animals+most fungi
what is cell differentiation?
process by which cells become specialised in order to perform different functions
what is cell specialisation?
the eventual (or specialised) role of the differentiated cell
what is an organelle? examples?
structure that performs specific functions within a cell
nucleus, mitochondria
what is a cell? examples?
basic functional and structural unit of a living organism
blood cells, skin cells,
what is a tissue? examples?
two or more cells with similar functions grouped together to perform a shared function
muscle tissue, epithelial tissue
what is an organ? examples?
formed by the functional grouping of multiple tissues
heart, lungs
what is an organ system? examples?
group of organs working together to perform specific body functions
respiratory system, cardiovascular system
