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
edit
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

Science cell

structure + function of a cell

TermDefinition
Cell Basic unit of structure and function in living things
Microscope Instrument that magnifies objects to make small things look larger
Simple microscope Only has one lens
Compound microscope Has more than one lens
Robert Hooke English Scientist Looked at cork- called them "cells"
Anton van Leeuwenhoek Dutch business man Made his own lenses Looked at pond water- saw "animalcules"
Cell theory All living things are composed of cells Cells are the basic unit of structure and function in living things All cells are produced from other cells
Resolution Ability to clearly distinguish individual parts of an object
Element Any substance that cannot be broken down into simpler substances
Atom Smallest unit of an element
Compound Two or more elements combined chemically
Molecule Smallest unit of most compounds
Organic compounds contain ________ Carbon
Define and give examples of a carbohydrate Energy rich organic compound Sugar and starches ex: potatoes, noodles, rice, bread=starch
Protein Made up of amino acids ex: meat, eggs, fish, nuts, and beans
Enzyme Type of protein that speeds up chemical reaction
Lipid Fats, oils, waxes Cholesterol is a lipid Gives more energy Body stores lipids for later use
What do nucleic acids do? (DNA & RNA) DNA- Genetic material passed of from parent to offspring -Directs function of cell RNA- Production of proteins
Selectively permeable Some substances can pass through while others cannot
Diffusion Movement of molecules from an area of high concentration to an area of low concentration
Osmosis The diffusion of water molecules through a selectively permeable membrance
Passive transport Movement of materials through a cell membrane without using energy
Active transport Movement of materials through a cell membrane using energy
Created by: MSSstudy
Popular Science 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