biodiversity and classification of micro organisms Flashcards
what is unicellular?
unicellular is a organism that has only one cell
what is multicellular?
is an organism made of many cells
what is biodiversity?
is the variety of organisms found in an area or on earth
VIRUSES
what is a virus?
viruses are placed in a separated group since the display some non living as well as living characteristics
what is a capsid?
a capsid is a protein coat surrounding the nucleic material of a virus
what is acellular?
non cellular
what is a obligate parasite?
it is a forced parasitic organism that cannot complete its life cycle
what is pathogenic
is an organism that causes diseases
what is bacteriophage
it is a type of virus that infects bacteria
what is a nucleoid?
it is an irregularly shaped region within the cell of prokaryote
the structure and characteristics of viruses
viruses are microscopic
consists of a core of either DNA OR RNA enclosed with a capsid
have variety in shape
cannot feed, respire or excrete waste
does not have a cytoplasm or a membrane bound in organelles
are acellular
does not have chlorophyll therefore cannot make their own food