1.1 Flashcards
(16 cards)
in biology, the smallest unit that can perform all life processes; cells are covered by a membrane and have DNA and cytoplasm
cell
a phospholipid layer that covers a cells surface; acts as a barrier between the inside of a cell and the cells government
cell membrance
one of the small bodies in a cells cytoplasm that are specialized to perform a specific function
organelle
an organism that consists of a single cell that does not have a nucleus
prokaryote
in a eukaryotic cell, a membrance-bound organelle that contains the cell’s DNA and that has a role in processes such as growth, metabolism, and reproduction
nucleus
an organism made up of cells that have nucleus enclosed by a membrance; eukaryotes include animals, plants, and fungi, but not archaebacteria
eukaryote
many cells
multicellular
three types of archaebactreia
heat-loving, salt-loving, methane-making
little animals
animalcules
fluid and almost all of its content are called
cytoplasm
genetic material that carries info needed to make cells and new organisms
DNA
cells w/ no nucleus
prokaryotic
cells w/ nucleus
eukaryotic
prokaryotic classified in to two groups
eubacteria & archaebacteria
tiny, round organelles
ribosomes
live in places where conditions are extreme
extremophiles