Shared Flashcard Set

Details

4
4
26
Biology
Undergraduate 1
07/28/2010

Additional Biology Flashcards

 


 

Cards

Term
hydrophillic
Definition
water loving
Term
golgi apparatus
Definition
packaging and shipping center of the cell
Term
ribosomes
Definition
organelles which are associated with protein production
Term
hypotonic solution
Definition
more water less solute
Term
eukaryotic cell
Definition
large complex cell which contains organelles and a nucleus
Term
cell
Definition
the basic structural and functional unit of living organisms
Term
cytoplasm
Definition
fluid portion of a cell which surrounds organelles
Term
mitochondrian
Definition
powerhouse of the cell (site of ATP production)
Term
prokaryotic cell
Definition
small simple cell which lacks a nucleus and organelles
Term
polar molecles
Definition
  • a molecule (such as water) with opposite charges on opposite sides
  • Term
    nonpolar molecules
    Definition
    a compound that is nonionic or does not dissociate into ions.
    Term
    passive transport
    Definition

    doesnt require ATP to move stuff across the cell

     

    of transport by which ions or molecules move along a concentration gradient, which means movement from an area of higher concentration to an area of lower concentration.

    Term
    protoplasm
    Definition
    interior living portion of the cells
    Term
    nucleus
    Definition
    contains the gentic info of the cell
    Term
    organelles
    Definition
    lil organs w/ in the protoplasm
    Term
    histocompatability antigens
    Definition

    antigen that determines acceptance or rejection of a tissue t by the immune system.

    Term
    signal transduction
    Definition
    processes by which an extracellular signal interacts with a receptor at the cell surface, causing a change in the level of a second messenger  and ultimately effects a change in the cells functioning
    Term
    attachment sites
    Definition
    specific point on the surface of the enzyme where it can physically attach itself to a substrate
    Term

    EGF

     

    epidermal growth factor

    Definition
    plays an important role in the regulation of cell growth, proliferation, and differentiation by binding to its receptor
    Term
    concentration gradient
    Definition

    the gradule change in the # of molecules per unit of volume over distance

     

    (higher on one side)

    Term
    dynamic equalibrium
    Definition

    (living things do this)

     

    conditions in which molecules are equally dispersed: therefore, movement is equal in all directions

    Term
    endocytosis
    Definition
    the process a cell uses to wrap membrane around a particle and engulf it
    Term
    receptor meditated endocytosis
    Definition
    the process from which the molecules the cell surroundings bind to receptor molecule son the plasma membrane followed by the membrane folding into the cell so that the cell engulfs these molecuels
    Term
    exocytosis
    Definition
    sending stuff out of the cell
    Term
    plant cells have all the same as an animal cell except
    Definition
    they have chloroplasts, vacuole and a cell wall
    Term
    virus
    Definition
    have a cell membrane, a cell wall and DNA
    Supporting users have an ad free experience!