Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
18 Cards in this Set
- Front
- Back
A cell that does not have a nucleus or other membrane-bound organelles
|
Prokaryotic cell
|
|
Cell that has a nucleus and other membrane-bound organelles
|
Eukaryotic cell
|
|
Loose combination of DNA and proteins that is present during interphase
|
Chromatin
|
|
Organelle that contains enzymes
|
Lysosome
|
|
Small cylinder-shaped organelle made of protein tubes arranged in a circle; aids mitosis
|
centriole
|
|
Solution that has a higher concentration of dissolved particles compared with another solution
|
Hypertonic solution
|
|
Solution that has a lower concentration of dissolved particles compared with another solution
|
Hypotonic solution
|
|
Energy requiring movement of molecules across a membrane from a region of lower concentration to a region of higher concentration
|
Active transport
|
|
Diffusion of molecules assisted by protein channels that pierce a cell membrane
|
Facilitated diffusion
|
|
Diffusion of water molecules across a semipermiable membrane from an area of higher water concentration to an area of lower water concentration
|
Osmosis
|
|
The arrangement and movement of the molecules that make up a cell membrane
|
Fluid mosaic
|
|
Movement of dissolved molecules in a fluid of gas from a region of higher concentration to a region of lower concentration
|
Diffusion
|
|
Release of substances out a cell by the fusion of a vesicle with the membrane
|
Exocytosis
|
|
Uptake of liquids or large molecules into a cell by inward folding of the cell membrane
|
Endocytosis
|
|
Difference in the concentration of a substance from one location to another
|
Concentration gradient
|
|
Long hollow tubes that give the cell its shape and act as "tracks" for the movement of organelles. When cells divide, these form fibers that pull half of the DNA into each new cell
|
Microtubule
|
|
tiny threads that enable cells to move and divide. They play an important role in muscle cells, where they help the muscle contract and relax.
|
Microfilament
|
|
A dense region where tiny organelles essential for making proteins are assembled.
|
Nucleolus
|