AP Notes, Outlines, Study Guides, Vocabulary, Practice Exams and more!

Biology Flashcards

Terms : Hide Images
5043385427Plasma Membrane (cell membrane)Flexible, selectively permeable (having pores or openings) boundary that helps control what enters and leave the cell.0
5043416101Lipid Bilayerdouble-layered sheet that forms the core of nearly all cell membranes1
5043424626PhospholipidPlasma membrane layers composed of phospholipid molecules arranged with polar heads facing the out side and non polheads facing the inside2
5043431967Transport ProtienProtein that moves substances or wastes through the plasma membrane.3
5043436687Carbohydrateorganic compound containing carbon, hydrogen, and oxygen in a ratio of one oxygen and two hydrogen atoms for each carbon atom.4
5043446664Carbohydrate Chainsubstance on the plasma membrane helps identify chemical signals from outside the cell?5
5043452179CholesterolBlocking system of the cell membrane . (sticks to the polar heads)6
5043457889Anchor Proteinhelps maintain cell shape7
5043466487Receptor ProteinHelps with Identification of cells. (receive messages)8
5043474234OsmosisDiffusion (flow)of water through a membrane9
5043487577DiffusionMovement of molecules from high to low concentration10
5043505010Facilitated DiffusionPassive transport of ion and small molecules across the plasma membrane by transport proteins.11
5043536813Active transportminimum amount of energy needed for reactions to form products in a chemical reaction.12

Need Help?

We hope your visit has been a productive one. If you're having any problems, or would like to give some feedback, we'd love to hear from you.

For general help, questions, and suggestions, try our dedicated support forums.

If you need to contact the Course-Notes.Org web experience team, please use our contact form.

Need Notes?

While we strive to provide the most comprehensive notes for as many high school textbooks as possible, there are certainly going to be some that we miss. Drop us a note and let us know which textbooks you need. Be sure to include which edition of the textbook you are using! If we see enough demand, we'll do whatever we can to get those notes up on the site for you!