Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

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.
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.
Don't know
remaining cards
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

Biology Ch. 8

Adenosine Triphosphate (ATP) Compound used by cells to store and release energy
Heterotroph Organism that obtains food by consuming other living things; also called a consumer
Autotroph Organism that is able to capture energy from sunlight or chemicals and use it to produce its own food from inorganic compounds; also called a producer.
Photosynthesis Process used by plants and other autotrophs to capture light energy and use it to power chemical reactions that convert carbon dioxide and water into oxygen and energy-rich carbohydrates such as sugars and starches.
Pigment Light-absorbing molecule used by plants to gather the sun's energy.
Chlorophyll Principal pigment of plants and other photosynthetic organisms
Thylakoid Sac-like photosynthetic membranes found in chloroplasts.
Stroma Fluid portion of the chloroplast; outside of the thylakoids.
NADP+ Carrier molecule that transfers high-energy electrons from chlorophyll to other molecules. (nicotinamide adenine dinucleotide phosphate)
Light-Dependent Reactions Set of reactions in photosynthesis that use energy from light to produce ATP and NADPH.
Light-Independent Reactions Set of reactions in photosynthesis that do not require light; energy from ATP and NADPH is used to build high-energy compounds such as sugar; also called the Calvin Cycle.
Photosystem Cluster of chlorophyll and proteins found in thylakoid.
Electron Transport Chain Series of electron carrier proteins that shuttle high-energy electrons during ATP-generating reactions
ATP Synthase Cluster of proteins that span the cell membrane and allow hydrogen ions (H+) to pass through it.
Calvin Cycle Light-independent reactions of photosynthesis in which energy from ATP and NADPH is used to build high-energy compounds such as sugar.
Created by: rhacker