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states that all living things are composed of cells and that all cells come from other cells
a protective layer external to the plasma membrane in plant cells, bacteria, fungi, and some protists. protects and helps cell maintain shape
A membranous sac in a mature plant cell with diverse roles in reproduction, growth, and development
An infolding of the inner membrane of a mitochondrion that houses the electron transport chain and the enzyme catalyzing the synthesis of ATP
Everything inside a eukaryotic cell between the plasma membrane and the nulceus (goo inside of cell).
A microscope that instead of using light, focuses a beam of electrons through the specimen or on its surface
The collection of membranes inside and around a eukaryotic cell, related either through direct physical contact or by the transfer of membranous vesicles
endoplasmic reticulum (ER)
within the cytoplasm, little net. extensive membranous network in eukaryotic cell
extracellular matrix (ECM)
animal cells produe. layer helps hold together in tissues and protects and supports the plasma membrane. main component of ECM is glycoprotein.
formed by phacogytosis; pinches off of the plasma membrane and encloses a food particle
accepts proteins and transports them to where they need to be. it also gets rid of sugar (glyco. - protein)
works by passing visible light through the specimen such as a microogrganism or a thin slice of animal or plant tissue
Lysosomal Storage Disease
A hereditary disorder associated with abnormal lysosomes, where the sufferer is missing one of the lysosomal digestive enzymes
The membrane in eukaryotes that encloses the nucleus, separating it from the cytoplasm
at the boundary of every cell, functions as a selective barrier; made of phospholipids and proteins
lacks a membrane--enclosed nucleus and other membrane-enclosed organelles Ex. bacteria and archae
A measure of the clarity of the image; it is the minimum distance two points can be separated and still be distinguished as two separate points
scanning electron microscope (SEM)
uses an electron beam to study the surface architecture of a cell or other specimen
Transmission electron microscope (TEM)
an electron microscope commonly used to study the internal structure of cells
A tiny membranous sac in a cell's cytoplasm carrying molecules produced by the cell
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