Busy. Please wait.

Forgot Password?

Don't have an account?  Sign up 

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.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.

Already a StudyStack user? Log In

Reset Password
Enter the email address associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know (0)
Know (0)
remaining cards (0)
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

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

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

ch. 3 cells E and P

elements any substance that cannot be broken down into simpler substances
compound when two or more elements combine chemically, they form a compound
carbohydrate an energy rich organic compound made of C, H, and O
lipids fats oils and waxes
proteins large molecules made of carbon, hydrogen , oxygen, nitrogen, and sometimes Sulfur
amino acids
selectively permeable some substances can pass through the cell membrane, while others cannot.
diffusion the main method by which small molecules move across the cell membrane
Osmosis cells cannot function properly without adequate water, many cellular processes depend on osmosis.
passive transport the movement of dissolved materials through a cell membrane without using cellular energy is called passive transport
active transport it requires the cell to use its own energy while passive transport does not.
photosynthesis photo is Greek which means light, and synthesis means putting together
autotroph an organism that cannot make its own food
heterotroph obtain food by eating other organisms
pigments colored chemical compounds that absorb light
chlorophyll the main photosynthetic pigment in chloroplasts
stomata carbon dioxide enters the plant through small openings on the underside of the leaves
respiration the process which cells obtain energy from glucose.
Fermentation is an energy-releasing process that does not require oxygen
Created by: catherine6900