1.1 The Diversity of cells Flashcards
in biology, the smallest unit that can perform all life progress; cells are covered by a membrane and have DNA and cytoplasm
cell
a phospholipid layer that covers a cell’s surface; acts as a barrier between the inside of a cell and the cell’s environment.
cell membrane
one of the small bodies in a cell’s cytoplasm that are specialized to perform a specific function
organelle
in eukaryotic cell, a membrane-bound organelle that contains the cell’s DNA and that has a role in processes such as growth,metabolism, and reproduction.
nucleus
an organism that consists of a single cell that does not have a nucleus
prokaryote
an organism made up of cells that have a nucleus enclosed by a membrane; eukaryotes include animals, plants, and fungi, but not archaebacteria or eubacteria
eukaryote
Little animals
Animalcules
A thought
Theory
This fluid and almost all of its contents are called
Cytoplasm
deoxyribo nucleic acid
DNA
The ratio of the cell’s outer surface area to the cell’s volume
surface ares-to-volume ratio
lives in places where conditions are extreme.
extremophiles
many cells
multicellular
Schwann wrote the first two parts of what is now known as the
cell theory
cells with no nucleus
prokaryotic cells
