having a strong affinity for water
IMPERMEABLE junctions that bind cells together into leakproof sheets that prevent substances from passing through the extracellular space betweeen cells; adjacent plasma membranes fuse together tightly like a zipper
ANCHORS junctions that prevent cells subjected to mechanical stress(such as skin cells) from being pulled apart.
commonly seen int he heart and between embryonic cells; function mainly to allow COMMUNICATION
Powerhouse of the cell, organelle that is the site of ATP (energy) production
site of protein synthesis in the cell
Serves as a minicirculatory system for the cell because it provides a network of channels for carrying substances(primarily proteins) from one part of the cell to another.
ER that is dotted with ribosomes..all of the building matericals of cellular membranes are formed either in it or on it, the roguh ER can be though of as the cell' membrance factory.
ER that has no ribosomes..It plays no role in prtein synthesis. Instead it functions in lipid metabolism(cholestero and fat synthesis and breakdown), and detoxification of drugs and pesticides.
An organelle in eukaryotic cells consisting of stacks of flat membranous sacs that modify, store, and route products of the endoplasmic reticulum.
(breakdown bodies) An organelle containing digestive enzymes
Contain oxidase enzymes that detoxify alcohol, hydrogen peroxide, and other harmful chemicals
A network of long protein strands in the cytosol that helps support the cell
threadlike proteins in the cell's cytoskeleton that are roughly twice as thick as microfilaments. Intermediate filaments help form desmosomes and provide internal guy wires to resist pulling fores on the cell.
(acting and myosin) are most involved in cell motility and in producing changes in cell shape. You could say that cells move when they get their act(in) together.
determine the overall shape of a cell and the distribution of organells.
they are rodshaped bodies that lie at right angles to each other internally they are made up of fine microtubules.
(eyelash) Thin hair-like projection from the cell
Long, threadlike structures that protrude from the cell's surface and enable movement. (sprout from the centrioles and put pressure on the membrane, forming the projections.) If the projections formed by the centrioles are substantially longer they are called Flagella.
Cells that connect body parts..The elongated shape of this cell lies along the cable like fibers that it secretes. It has an abunant rough ER and a large Golgi apparatus to make and secrete the protein building blocks of these fibers.
Cells that connect body parts..Red blood cell, this cell carries oxygen in the bloodstream.
Cell that covers and lines body organs..The hexagonal shape of thei cell is exatly lide a cell in a honeycomb of a beehive.
Skeletal Muscle and Smooth Muscle
Cells that move organs and body parts...These cells are elongated and filled with abundant contractile filaments, so they can shorten forcefully and move the bones or change the size of internal organ.
Cell that stores nutrients..The huge spherical shape of a fat cell is produced by a large lipid droplet in its cytoplasm.
Cell that fight desease...This cell extends long pseudopods(false feet) to crawl through tissue to reach infection sites.
Cell that gathers information and controls body functions...This cell has long processes for receiving messages and transmitting them to other structures in the body.
Cells of reproduction...The largest cell in the body, this egg cell contains several copies of all organelles
Cells of reproduction...This cell is long and streamlined, buildt for swimming to the egg for fertilization. Its flagellum acts as a motile whip to propel the sperm.