tightly coiled structures that carry the genetic information (can be seen during nuclear division)
Back
tight junctions
Front
intercellular junction in animal tissues where plasma membranes of neighboring cells are very tightly pressed against each other, bound by specific proteins
Back
transport vesicles
Front
vesicles in transit from one part of the cell to another
Back
chloroplasts
Front
contain chlorophyll which help absorb solar energy in order to convert carbon dioxide and water into sugars during photosynthesis
Back
endoplasmic reticulum (ER)
Front
accounts for more than half of total membrane in many eukaryotic cells, continuous with the nuclear envelope
Back
organelles
Front
membrane-enclosed structures within a eukaryotic cell
Back
cell wall
Front
extracellular structure specific to plant cells, protects the cell, maintains its shape, and prevents excessive water uptake
Back
Golgi apparatus
Front
stack of membranes that modifies, sorts, and packages proteins from the endoplasmic reticulum
Back
plastids
Front
manufacture and store important chemical compounds used by the cell such as pigments, oils, and starches
Back
ribosomes
Front
made of ribosomal RNA and protein, synthesize proteins
Back
chromatin
Front
loosly coiled genetic material that makes up chromosomes, a complex of proteins and DNA
Back
cilia
Front
a short hair-like structures that enable movement of cells or movement of materials outside a cell, utilizes a back-and-forth motion
Back
collagen
Front
most common glycoprotein in the ECM, forms strong fibers outside the cells
Back
centrioles
Front
cylindrical organelle near the nucleus in animal cells, occurring in pairs and involved in the development of spindle fibers in cell division
Back
central vacuole
Front
the largest organelle in a plant cell. It is surrounded by the tonoplast and functions to hold materials and wastes. It also functions to maintain the proper pressure within plant cells
Back
cytoplasmic streaming
Front
the circular flow of cytoplasm within cells
Back
gap junctions
Front
intercellular junction in animal tissues that provide cytoplasmic channels from one cell to an adjacent cell, similar to plasmodesmata in plants
Back
extracellular matrix
Front
where animal tissue cells are embedded, consists of protein and polysaccharides
Back
intermediate filaments
Front
diverse class of cytoskeletal elements that bear tension like microfilaments
Back
cytosol
Front
a jellylike substance where organelles and other components are found
Back
microtubules
Front
hollow rods of protein, support the cell and moves organelles within the cell
Back
nucleoid region
Front
a non-membrane-enclosed region of the cell where prokaryotic DNA is found
Back
prokaryotic cell
Front
Cell with no nucleus nor membrane bound organelles
Back
endomembrane system
Front
membranes that divide the cell into organelles such as the nuclear membrane, the endoplasmic reticulum, the Golgi apparatus, lysosomes, vesicles, and the cell membrane.
Back
nucleus
Front
chromosome-containing part of a eukaryotic cell
Back
plasma membrane
Front
The selective barrier that surrounds a cell; it controls what enters and leaves the cell
Back
rough ER
Front
portion of the endoplasmic reticulum studded with ribosomes, produce and transport membrane and secretory proteins
Back
nuclear envelope
Front
encloses the nucleus to separate its contents from the cytoplasm
Back
microfilaments
Front
the thinnest part of the cytoskeleton, are used to give shape to the cell and support all of its internal parts
Back
cytoskeleton
Front
a network of fibers bracing the cytoplasm
Back
pseudopodia
Front
cellular extensions that enable a cell to crawl along a surface
Back
cytoplasm
Front
the region in a cell between the cell membrane and nucleus; it contains the cell structures and oganelles
Back
centrosome
Front
a region located near the nucleus where micro-tubules grow from; important in cell division
Back
mitochondria
Front
chemically convert chemical (food) energy into usable ATP energy through cellular respiration
Back
eukaryotic cell
Front
Cell with a nucleus and membrane bound organelles
Back
phagocytosis
Front
the process by which a cell engulfs a solid particle
Back
lysosome
Front
membranous sac of hydrolytic enzymes, which the cell uses to digest unwanted materials
Back
smooth ER
Front
portion of the endoplasmic reticulum free of ribosomes, synthesize lipids, detoxifies the cell, and regulates calcium levels
Back
flagella
Front
a long tail-like structure that aids in cell movement
Back
nucleolus
Front
located in the nucleus, makes, synthesizes, and partially assembles ribosomes
Back
contractile vacuoles
Front
pump excess water out of the cell to maintain a suitable concentration of ions and molecules in the cell