Save
Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know
Remaining cards (0)
Know
0:00
share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Cells

Biology

TermDefinition
Cell Theory the theory that states that all living things are made up of cells, that cells are the basic units of organisms, that each cell in a multicellular organism has a specific job, and that cells come only from existing cells
Cytoplasm the material or protoplasm within a living cell, excluding the nucleus.
Organelle a specialized subunit within a cell that has a specific function.
Prokaryotic Cell A microscopic single-celled organism which has neither a distinct nucleus with a membrane nor other specialized organelles, including the bacteria and cyanobacteria.
Eukaryotic Cell An organism whose cells contain a nucleus surrounded by a membrane and whose DNA is bound together by proteins (histones) into chromosomes
Cytoskeleton the cytoplasmic network of protein filaments that plays an essential role in cell movement, shape, and division
Nucleus physical science, an atom's central region, which is made up of protons and neutrons
Endoplasmic reticulum a system of membranes that is found in a cell's cytoplasm and that assists in the production, processing, and transport of proteins and in the production of lipids
Ribosome a cell organelle composed of RNA and protein; the site of protein synthesis
Golgi apparatus a cell organelle that helps make and package materials to be transported out of the cell
Vesicle a small cavity or sac that contains materials in a eukaryotic cell; forms when part of the cell membrane surrounds the materials to be taken into the cell or transported within the cell
Mitochondrion in eukaryotic cells, the cell organelle that is surrounded by two membranes and that is the site of cellular respiration, which produces ATP
Vacuole a fluid-filled vesicle found in the cytoplasm of plant cells or protozoans
Lysosome a cell organelle that contains digestive enzymes
Centriole an organelle that is active during mitosis
Cell wall a rigid structure that surrounds the cell membrane and provides support to the cell
Chloroplast an organelle found in plant and algae cells where photosynthesis occurs
Cell membrane a phospholipid layer that covers a cell’s surface and acts as a barrier between the inside of a cell and the cell’s environment
Phospholipid a lipid that contains phosphorus and that is a structural component in cell membranes
Fluid mosaic model
Selective permealbility
Receptor a specialized sensory nerve that responds to specific types of stimuli
Passive transport the movement of substances across a cell membrane without the use of energy by the cell
Diffusion the movement of particles from regions of higher density to regions of lower density
Concentration gradient a difference in the concentration of a substance across a distance
Osmosis the diffusion of water or another solvent from a more dilute solution (of a solute) to a more concentrated solution (of the solute) through a membrane that is permeable to the solvent
Isotonic a solution whose solute concentration is equal to the solute concentration inside a cell
Hypertonic describes a solution whose solute concentration is higher than the solute concentration inside a cell
Hypotonic describes a solution whose solute concentration is lower than the solute concentration inside a cell
Facilitated diffusion the transport of substances through a cell membrane along a concentration gradient with the aid of carrier proteins
Active transport the movement of chemical substances, usually across the cell membrane, against a concentration gradient; requires cells to use energy
Endocytosis he process by which a cell membrane surrounds a particle and encloses the particle in a vesicle to bring the particle into the cell
Phagocytosis the process by which a cell engulfs large particles or whole cells, either as a defense mechanism or as a means to obtain food
Exocytosis the process by which a substance is released from the cell through a vesicle that transports the substance to the cell surface and then fuses with the membrane to let the substance out
Created by: love_laurenM
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards