Save
Upgrade to remove ads
Busy. Please wait.
Log in with Clever
or

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever
or

Username is available taken
show password


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.
Your email address is only used to allow you to reset your password. See 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
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

Biology Ch. 3

Biology test

QuestionAnswer
Active Transport energy required....moves molecules across a cell... they move from higher concentration to lower concentration
whats the cell membrane Made of two layers of phospholipids... surrounds cell from environment....controls the amount of material in and out of the cell
cell theory theory all organisms are made of cells... cells produced by other cells... basic unit of life
cell wall rigid structure that gives protection,support, and shape of cell
centriole small cylinder shaped organelles made of protein tubes shaped in a circle
chloroplast gives energy to cell& color
concentration gradient the difference in concentration from one location to the other
cytoplasm jelly like substance inside cells that has molecules and some organelles
cytoplasm network of proteins like microtubes
Active Transport energy required....moves molecules across a cell... they move from higher concentration to lower concentration
whats the cell membrane Made of two layers of phospholipids... surrounds cell from environment....controls the amount of material in and out of the cell
cell theory theory all organisms are made of cells... cells produced by other cells... basic unit of life
cell wall rigid structure that gives protection,support, and shape of cell
centriole small cylinder shaped organelles made of protein tubes shaped in a circle
chloroplast gives energy to cell& color
concentration gradient the difference in concentration from one location to the other
cytoplasm jelly like substance inside cells that has molecules and some organelles
cytoskeleton network of proteins like microtubules and microfilaments, inside a eukaryotic cell that supports and shapes the cell
diffusion movement of dissolved molecules in a fluid or gas from a region of higher concentration to an area of lower concentration
endocytosis uptake of liquids or large molecules into a cell by inward folding of the cell membrane
endoplasmic reticulum interconnected network of thin, folded membranes that produce, process, and distribute proteins
eukaryotic cell cell that has a nucleus and other membrane-bound organelles
exocytosis release of substances out of a cell by the fusion of a vesicle with the membrane
facilitated diffusion diffusion of molecules assisted by protein channels that pierce a cell membrane
fluid mosaic model arrangement and movement of the molecules make up a cell membrane
Golgi apparatus stack of flat, membrane enclosed spaces containing enzymes that process, sort, and deliver proteins or the mail man
hypertonic solution that has a higher concentration gets smaller like hyper person sweating out liquid
hypotonic solution that has a lower concentration of gets bigger
isotonic solution that has an equal concentration
lysosome like trash can
mitochondrion (plural mitochondria) bean shaped organelle that supplies energy to the cell and has its own ribosomes and DNA
nucleus (plural nuclei) organelle composed of a double membrane that acts of the storehouse for most of the cell's DNA
organelle membrane bound structure that is specialized to perform different functions within a cell
osmosis diffusion of water molecules across a semipermeable membrane from an area of higher water concentration to an area of lower water concentration
passive transport movement of molecules across the cell membrane without energy input from the cell
phagocytosis uptake of a solid particle into a cell by engulfing the particle; see endocytosis
phospholipid molecule forming a double layered cell membrane; consists of a glycerol, a phosphate group and two fatty acids
prokaryotic cell cell without a nucleus or membrane-bound organelles
receptor protein that detects a signal molecule and performs an action in response
ribosome organelle that links amino acids together to form proteins
selective permeability condition or quality of choosing what crosses a barrier or membrane
vacuole organelle used to store materials such as water, food, or enzymes needed by the cell
vesicle moves stuff around in a cell
Created by: 17brougherr
Popular Biology sets

 

 



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