cell structure

a physical boundary between internal cell events

plasma membrane

everything but the plasma membrane and the nucleus/nucleoid

cytoplasm

the region of DNA in a cell

nucleus

0.1 nanometres

Ångström

cells with no membrane-bound nucleus

prokaryotic

Well-known exceptionally large single cells

birds eggs

most prokaryotic cells have this rigid structure outside the plasma membrane

cell wall

cells with many specialized membrane-bound compartments and a nucleus

eukaryotic

the specialized compartments in eukaryotic cells

organelles

organelles specializing in digestion and disposal

lysosomes

organelles specializing in energy extraction and conversion

mitochondria

blue-green algae

cyanobacteria

organelles specializing in materials conversion and disposal

microbodies

eukaryotic means...

true nucleus

prokaryotic means...

before the nucleus

compartments for sunlight conversion with photosynthetic pigments

chloroplasts

sets of flat, stacked fluid-filled sacs specializing in modification and distribution of material

Golgi bodies

fine strands involved in cell shape, motion and growth

microfilaments

separates the nucleus
from the cytoplasm

nuclear envelope

organelles specialized in photosynthetic food production

plastids

plastids with
non-photosynthetic pigments

chromoplasts

colorless plastids with starch storage - not exposed to sunlight

amyloplasts

very large fluid-filled organelle in plants used for storage and to incr. cell size and surface area

central vacuole

a slender cylindrical extension
of the cell surface that
aides absorption or
secretion of molecules

microvillus

cilia compared to flagella

shorter and more numerous where they occur

a structure made of RNA and proteins - the site of protein synthesis

ribosome