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vocabulary words
words
17
Biology
9th Grade
03/09/2011

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Term
Energy
Definition
The ability to do work
Term
Reactnat
Definition
A substance that reacts (is used) in a chemical reaction.
Term
Product
Definition
A substance that is produced in a chemical reaction.
Term
Chemical Reaction
Definition
A process that results in substances forming or breaking into new substances.
Term
Autotroph
Definition
An organism that is able to produce its own food
Term
Heterotroph
Definition
An organism that obtains its energy by eating other organisms
Term
Chloroplast
Definition
A double-membrane organelle in plant and some protist cells that is the main site of photosynthesis
Term
Photosynthesis
Definition
The process of converting light energy to chemical energy; in the process, carbon dioxide and water are converted into oxygen and sugars
Term
Thylakoid Membrane
Definition
A membranous sac within chloroplasts on which the light reactions of photosynthesis occur
Term
Grana
Definition
The stacks of thylakoid membranes within chloroplasts.
Term
Stroma
Definition
The space between the grana in a chloroplast
Term
Chemical Bonds
Definition
A strong attractive force between atoms that holds them together. The attractive force comes from sharing or transferring their outermost (valence) electrons.
Term
ATP
Definition
Adenosine Triphosphate
Term
NADPH
Definition
High Energy
Term
How does life on earth depend on photosynthesis?
Definition
helps by creating energy for glucose
Term
Light Reactions
Definition
A set of chemical reactions that occur in the stroma of chloroplasts during photosynthesis
Term
Calvin Cycle
Definition
Also known as light-independent (dark) reactions, a set of chemical reactions that occur in the stroma of chloroplasts during photosynthesis
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