Like this study set? Create a free account to save it.

Sign up for an account

Already have a Quizlet account? .

Create an account


(genetics) the organic process whereby the DNA sequence in a gene is copied into mRNA


a group of ribosomes joined by a molecule of messenger RNA containing a portion of the genetic code that is to be translated. Polysomes are found in the cytoplasm and synthesize proteins.

endoplasmic reticulum (ER)

responsible for the systhesis of proteins for export from the cell

Rough Endoplasmic Reticulum

System of internal membranes within the cytoplasm. Membranes are rough due to the presence of ribosomes. functions in transport of substances such as proteins within the cytoplasm

smooth endoplasmic reticulum

parts of the endoplasmic reticulum that are not associated with polysomes; serves in the synthesis of phospholipids for cellular membranes and other water-insoluble compounds.

Golgi apparatus

a stack of membranous sacs, where the proteins undergo further modifications

secretory vesicles

Membrane-bound sacs that pinch off of the Golgi Apparatus that carry lipids/proteins to the cell surface for excretion.


certain digestive enzymes leave the Golgi apparatus in these; they fuse inside the cell with other membranous vesicles;


process by which a cell takes material into the cell by infolding of the cell membrane;


the process by which the cell uptake fluid in small vesicles


the process by which the cell uptakes microorganisms or other firm particles in large vesicles


Powerhouse of the cell, organelle that is the site of ATP (energy) production. Small organelles that provide energy for cellular processes: RNA synthesis, protein synthesis, and transport

receptor-mediated endocytosis

The movement of specific molecules into a cell by the inward budding of membranous vesicles containing proteins with receptor sites specific to the molecules being taken in; enables a cell to acquire bulk quantities of specific substances.


A molecule that binds specifically to a receptor site of another molecule.

cell cycle

for an organism to develop and reproduce its cells must increase in number; cyclic process of growth and division


provides internal organization and ability to move; a network of cellular filaments; regulates cell shape and movement within cells;

squamous cells

become epidermis

columnar cells

become neural plate

3 types of cytoskeletal filaments

microtubules, microfilaments, intermediate filaments

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions and try again


Reload the page to try again!


Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

Voice Recording