Topic 1-Cell Biology Flashcards
prokaryotes
single celled, small organism
eukaryotes
complex organisms
nucleus
contains genetic material that controls the activities of the cell
cytoplasm
gel-like substance where most of the chemical reactions happen.
cell membrane
holds the cell together and controls what goes in and out
mitochondria
where most of the reactions for aerobic respiration takes place
ribosomes
where proteins are made in the cell
cell wall
(PLANT ONLY) supports and strengthens the cell
permanent vacuole
(PLANT ONLY) contains cell sap which is a weak solution of sugar and salts
chloroplasts
(PLANT ONLY) where photosynthesis occurs. contains a green substance called chlorophyll which absorbs the light needed for photosynthesis.
examples of eukaryotes
plants and animals
examples of prokaryotes
bacteria
plasmids
(BACTERIA ONLY) small ring of DNA
strand of DNA
(BACTERIA ONLY) where genetic information is stored instead of a nucleus
light microscopes
use light and lenses to form an image of a specimen and magnify it. they let us see cells and large subcellular structures (eg nuclei)